| SCOP superfamily ID |
superfamiily description |
corresponding fold description |
| c.69.1 | alpha/beta-Hydrolases many members have left-handed crossover connection between strand 8 and additional strand 9 ! | alpha/beta-Hydrolases core: 3 layers, a/b/a; mixed beta-sheet of 8 strands, order 12435678, strand 2 is antiparallel to the rest |
| d.157.1 | Metallo-hydrolase/oxidoreductase | Metallo-hydrolase/oxidoreductase duplication of beta(4)-alpha-beta-alpha motif; 4 layers a/b/b/a; mixed beta-sheets |
| d.109.1 | Actin depolymerizing proteins | Gelsolin-like 3 layers: a/b/a; contains mixed beta-sheet |
| c.14.1 | ClpP/crotonase | ClpP/crotonase core: 4 turns of (beta-beta-alpha)n superhelix |
| d.87.1 | FAD/NAD-linked reductases, dimerisation (C-terminal) domain both first two domains are of same beta/beta/alpha fold ! | CO dehydrogenase flavoprotein C-domain-like core: beta(3,4)-alpha(3); alpha+beta sandwich |
| d.153.1 | N-terminal nucleophile aminohydrolases (Ntn hydrolases) N-terminal residue provides two catalytic groups, nucleophile and proton donor ! | Ntn hydrolase-like 4 layers: alpha/beta/beta/alpha; has an unusual sheet-to-sheet packing |
| d.108.1 | Acyl-CoA N-acyltransferases (Nat) | Acyl-CoA N-acyltransferases (Nat) 3 layers: a/b/a; contains mixed beta-sheet |
| e.29.1 | beta and beta-prime subunits of DNA dependent RNA-polymerase The catalytic site is formed by the association of two double-psi beta-barrel domains, one from each subunit ! | beta and beta-prime subunits of DNA dependent RNA-polymerase Multidomain subunits of complex domain organization |
| c.23.4 | Succinyl-CoA synthetase domains | Flavodoxin-like 3 layers, a/b/a; parallel beta-sheet of 5 strand, order 21345 |
| c.55.3 | Ribonuclease H-like consists of one domain of this fold ! | Ribonuclease H-like motif 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 32145; strand 2 is antiparallel to the rest |
| d.19.1 | MHC antigen-recognition domain | MHC antigen-recognition domain dimeric |
| b.60.1 | Lipocalins bind hydrophobic ligands in their interior ! | Lipocalins barrel, closed or opened; n=8, S=12; meander |
| d.287.1 | DNA methylase specificity domain | DNA methylase specificity domain comprises the N-terminal, double beta-helix like structure and C-terminal alpha-hairpin |
| d.194.1 | CNF1/YfiH-like putative cysteine hydrolases | CNF1/YfiH-like putative cysteine hydrolases 4 layers: alpha/beta/beta/alpha; mixed beta sheets |
| d.94.1 | HPr-like | HPr-like beta-alpha-beta(2)-alpha-beta-alpha; 2 layers: a/b; antiparallel sheet 1423 |
| d.23.1 | Tubby C-terminal domain-like | Tubby C-terminal domain-like beta-sheet folds into a barrel (n=12, S=12) around the central helix |
| d.141.1 | Ribosomal protein L6 | Ribosomal protein L6 consists of two beta-sheets and one alpha-helix packed around single core |
| d.299.1 | Ns1 effector domain-like | Ns1 effector domain-like beta-X-beta(5)-alpha-beta-alpha; 2 layers: a/b; bifurcated beta-sheet; order 23654[1,7] |
| d.92.2 | beta-N-acetylhexosaminidase-like domain contains similar fold but lacks its catalytic centre ! | Zincin-like contains mixed beta sheet with connection over free side of the sheet |
| c.81.1 | Formate dehydrogenase/DMSO reductase, domains 1-3 molybdopterine enzyme ! | Formate dehydrogenase/DMSO reductase, domains 1-3 contains of two similar intertwined domains related by pseudo dyad; duplication ! core: 3 layers: a/b/a; parallel beta-sheet of 5 strands, order 32451 |
| d.212.1 | TolA/TonB C-terminal domain | TolA/TonB C-terminal domain beta(2)-alpha-beta; 2 layers, alpha/beta; left-handed beta-alpha-beta unit in non-swapped monomer |
| d.159.1 | Metallo-dependent phosphatases different families of this superfamily are groupped in a single Pfam family, | Metallo-dependent phosphatases 4 layers: alpha/beta/beta/alpha; mixed beta sheets; contains duplication |
| d.52.8 | Fe-S cluster assembly (FSCA) domain-like similar putative active site with a conserved cysteine residue ! | Alpha-lytic protease prodomain-like core: alpha-beta(2)-(alpha)-beta; 2 layers: alpha/beta |
| d.129.4 | Cell-division protein ZipA, C-terminal domain contains a single copy of this fold ! | TBP-like beta-alpha-beta(4)-alpha |
| d.92.1 | Metalloproteases ("zincins"), catalytic domain | Zincin-like contains mixed beta sheet with connection over free side of the sheet |
| c.56.2 | Purine and uridine phosphorylases complex architecture; contains mixed beta-sheet of 8 strands, order 23415867, strands 3, 6 & 7 are antiparallel to the rest; and barrel, closed; n=5, S=8 ! | Phosphorylase/hydrolase-like core: 3 layers, a/b/a ; mixed sheet of 5 strands: order 21354; strand 4 is antiparallel to the rest; contains crossover loops |
| c.48.1 | TK C-terminal domain-like | TK C-terminal domain-like 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 13245, strand 1 is antiparallel to the rest |
| e.60.1 | Thermophilic metalloprotease-like | Thermophilic metalloprotease-like consists of two domains; d1: alpha/beta (3 layers, a/b/a; parralel beta-sheet, order 2134); d2: pseudo beta-barrel capped by helices |
| c.67.1 | PLP-dependent transferases | PLP-dependent transferase-like main domain: 3 layers: a/b/a, mixed beta-sheet of 7 strands, order 3245671; strand 7 is antiparallel to the rest |
| e.28.1 | Reovirus inner layer core protein p3 | Reovirus inner layer core protein p3 large protein without apparent domain division; has a number of all-alpha regions and one all beta domain near the C-end |
| d.110.7 | Roadblock/LC7 domain alpha-beta(2)-alpha-beta(3)-alpha; structurally most similar to the SNARE-like superfamily with a circular permutation of the terminal helices ! | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| d.41.1 | CO dehydrogenase molybdoprotein N-domain-like | alpha/beta-Hammerhead core: beta-BETA-alpha-beta-BETA-beta-alpha; contains a beta-hammerhead motif similar to that in barrel-sandwich hybrids |
| c.90.1 | Tetrapyrrole methylase | Tetrapyrrole methylase consists of two non-similar domains ! Domain 1 has parallel sheet of 5 strands, order 32415 ! Domain 2 has mixed sheet of 5 strands, order 12534; strands 4 & 5 are antiparallel to the rest |
| d.112.1 | Phoshotransferase/anion transport protein | Phoshotransferase/anion transport protein beta-alpha(2)-beta(3)-alpha(3); 3 layers, alpha/beta/alpha; mixed sheet: order 1342; loop crossing |
| c.13.2 | SpoIIaa-like | SpoIIaa-like core: 4 turns of a (beta-alpha)n superhelix |
| d.220.1 | Metal cation-transporting ATPase, ATP-binding domain N | Metal cation-transporting ATPase, ATP-binding domain N unusual fold; core: beta-alpha(2)-beta(3)-alpha(2)-beta(2); 6-stranded antiparallel beta-sheet, order: 165432 |
| c.122.1 | L-sulfolactate dehydrogenase-like topological similarity to the domain 2 of TM1585 ! | L-sulfolactate dehydrogenase-like core: 3 layers, a/b/a; mixed sheet of 7 strands, order 1237456; strands 1, 6 and 7 are antiparallel to the rest |
| d.89.1 | Origin of replication-binding domain, RBD-like | Origin of replication-binding domain, RBD-like alpha-beta-alpha-beta(2)-alpha-beta-alpha-beta; 3 layers: a/b/a; antiparallel sheet 41325 |
| g.41.6 | Hypothetical protein MTH1184 contains two CXC motifs ! | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| b.55.1 | PH domain-like | PH domain-like barrel barrel, partly opened; n*=6, S*=12; meander; capped by an alpha-helix |
| e.3.1 | beta-lactamase/transpeptidase-like | beta-lactamase/transpeptidase-like contains a cluster of helices and an alpha+beta sandwich |
| c.91.1 | PEP carboxykinase-like | PEP carboxykinase-like contains a P-loop NTP-binding motif; mixed beta-sheet folds into a barrel-like structure with helices packed on one side |
| c.56.5 | Zn-dependent exopeptidases core: mixed beta-sheet of 8 strands, order 12435867; strands 2, 6 & 7 are antiparallel to the rest ! | Phosphorylase/hydrolase-like core: 3 layers, a/b/a ; mixed sheet of 5 strands: order 21354; strand 4 is antiparallel to the rest; contains crossover loops |
| d.328.1 | CorA soluble domain-like | CorA soluble domain-like beta(2)-alpha-beta-alpha(2)-beta(4)-alpha(3); 3 layers: a/b/a; mixed beta-sheet, order 2137654; strands 3 and 7 are parallel |
| d.129.3 | Bet v1-like contains a single copy of this fold with a alpha-beta2 insertion after the first helix; there is a cavity between the beta-sheet and the long C-terminal helix ! | TBP-like beta-alpha-beta(4)-alpha |
| d.100.2 | MbtH-like the first helix is replaced with an extended loop; contains extra C-terminal helix of variable position | MbtH/L9 domain-like beta(2)-alpha-beta-alpha; 3 layers: alpha/beta/alpha |
| c.74.1 | AraD/HMP-PK domain-like | AraD/HMP-PK domain-like 3 layers: a/b/a; mixed (mostly antiparallel) beta-sheet of 9 strands, order 432159876; left-handed crossover between strands 4 and 5 |
| c.109.1 | PEP carboxykinase N-terminal domain | PEP carboxykinase N-terminal domain contains mixed beta-sheets; topology is partly similar to that of the catalytic C-terminal domain |
| d.38.1 | Thioesterase/thiol ester dehydrase-isomerase | Thioesterase/thiol ester dehydrase-isomerase core: beta-alpha-beta(4); 2 layers: alpha/beta |
| d.14.1 | Ribosomal protein S5 domain 2-like | Ribosomal protein S5 domain 2-like core: beta(3)-alpha-beta-alpha; 2 layers: alpha/beta; left-handed crossover |
| c.23.16 | Class I glutamine amidotransferase-like conserved positions of the oxyanion hole and catalytic nucleophile; different constituent families contain different additional structures ! | Flavodoxin-like 3 layers, a/b/a; parallel beta-sheet of 5 strand, order 21345 |
| d.165.1 | Ribosome inactivating proteins (RIP) | Ribosome inactivating proteins (RIP) contains mixed beta-sheet |
| d.185.1 | LuxS/MPP-like metallohydrolase Share the same "active site motif" HxxEH located in the first core helix, but differ in one of the zinc-binding residues ! | LuxS/MPP-like metallohydrolase core: beta-alpha-beta(2)-alpha(2); 2 layers: alpha/beta |
| c.72.1 | Ribokinase-like has extra strand located between strands 2 and 3 ! | Ribokinase-like core: 3 layers: a/b/a; mixed beta-sheet of 8 strands, order 21345678, strand 7 is antiparallel to the rest ! potential superfamily: members of this fold have similar functions but different ATP-binding sites |
| c.97.1 | Cytidine deaminase-like contains extra C-terminal strand 5, order 21345 ! | Cytidine deaminase-like core: alpha-beta(2)-(alpha-beta)2; 3 layers (a/b/a); mixed beta-sheet of 4 strands, order 2134; strand 1 is antiparallel to the rest |
| d.129.1 | TATA-box binding protein-like | TBP-like beta-alpha-beta(4)-alpha |
| b.175.1 | FomD-like | FomD barrel-like barrel, closed; n=8, S=12; meander; similar topology to the AOC barrel-like fold (reversed to the lipocalin barrel topology) |
| d.58.26 | GHMP Kinase, C-terminal domain common fold is elaborated with additional secondary structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.94.1 | Periplasmic binding protein-like II Similar in architecture to the superfamily I but partly differs in topology ! | Periplasmic binding protein-like II consists of two similar intertwined domain with 3 layers (a/b/a) each: duplication ! mixed beta-sheet of 5 strands, order 21354; strand 5 is antiparallel to the rest |
| d.58.4 | Dimeric alpha+beta barrel dimerizes through the beta-sheet; forms beta-sheet barrel, closed (n=8, S=12); dimers may assemble in higher oligomers ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.51.1 | Eukaryotic type KH-domain (KH-domain type I) Prokaryotic and eukaryotic domains share a KH-motif but have different topologies ! | Eukaryotic type KH-domain (KH-domain type I) beta-alpha(2)-beta(2)-alpha; 2 layers: alpha/beta |
| d.58.7 | RNA-binding domain, RBD | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.56.7 | AF0625-like contains extra C-terminal alpha/beta domain: 3 layers, a/b/a; parallel beta-sheet of 4 strands, order 2134 ! | Phosphorylase/hydrolase-like core: 3 layers, a/b/a ; mixed sheet of 5 strands: order 21354; strand 4 is antiparallel to the rest; contains crossover loops |
| d.58.62 | Ribosomal protein L10-like consists of globular N-terminal domain, structurally similar to NDK, and the L7/L12-binding C-terminal alpha-helical tail | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.59.1 | MurD-like peptide ligases, peptide-binding domain | MurD-like peptide ligases, peptide-binding domain 3 layers: a/b/a; mixed beta-sheet of 6 strands, order 126345; strand 1 is antiparallel to the rest |
| e.59.1 | FdhE-like | FdhE-like consists on the N-terminal five-helical bundle, a tandem repeat of two rubredoxin-like domains and the C-terminal helix packed together |
| d.21.1 | Diaminopimelate epimerase-like duplication: consists of two similar domain swapped with C-terminal strands ! | Diaminopimelate epimerase-like mixed beta-sheet folds into a barrel (n=8, S=14) around the central helix |
| d.133.1 | Molybdenum cofactor-binding domain duplication: consists of 4 structural repeats arranged in 2 lobes ! contains one left-hand beta-alpha-beta unit per lobe ! | Molybdenum cofactor-binding domain beta(2)-alpha-beta-alpha-beta; 2 layers: a/b; mixed sheet: order 1243: crossing loops |
| d.109.2 | C-terminal, gelsolin-like domain of Sec23/24 | Gelsolin-like 3 layers: a/b/a; contains mixed beta-sheet |
| e.7.1 | Carbohydrate phosphatase | Carbohydrate phosphatase N-terminal domain is an alpha+beta, C-terminal domain is an alpha/beta with mixed beta-sheet |
| a.114.1 | Interferon-induced guanylate-binding protein 1 (GBP1), C-terminal domain | Interferon-induced guanylate-binding protein 1 (GBP1), C-terminal domain multihelical; bundle of longer and shorter helices |
| d.16.1 | FAD-linked reductases, C-terminal domain N-terminal domain is beta/beta/alpha common fold ! | FAD-linked reductases, C-terminal domain alpha+beta sandwich |
| c.56.4 | Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) | Phosphorylase/hydrolase-like core: 3 layers, a/b/a ; mixed sheet of 5 strands: order 21354; strand 4 is antiparallel to the rest; contains crossover loops |
| d.154.1 | DmpA/ArgJ-like convergent similarity to the Ntn amidohydrolases ! | DmpA/ArgJ-like duplication of beta(3)-alpha-beta-alpha motif; 4 layers: alpha/beta/beta/alpha |
| b.84.2 | Rudiment single hybrid motif | Barrel-sandwich hybrid sandwich of half-barrel shaped beta-sheets |
| f.7.1 | Lipovitellin-phosvitin complex; beta-sheet shell regions | Lipovitellin-phosvitin complex; beta-sheet shell regions contains several large open beta-sheets |
| d.161.1 | ADC synthase the active site is formed by additional structures inserted into the core structure ! | ADC synthase duplication: contains four repeats of alpha-beta(2)-beta motif arranged in a 4 layer core structure: alpha/beta/beta/alpha; orthogonally packed beta-sheets |
| d.129.2 | Phosphoglucomutase, C-terminal domain contains a single copy of this fold and an extra beta-strand at the C-terminus ! | TBP-like beta-alpha-beta(4)-alpha |
| d.224.1 | SufE/NifU iron-sulfur cluster assembly proteins ! | SufE/NifU alpha(2)-beta(3)-alpha(3); 2 layers alpha/beta, 3-stranded antiparallel beta-sheet; order 123 |
| c.55.1 | Actin-like ATPase domain duplication contains two domains of this fold ! | Ribonuclease H-like motif 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 32145; strand 2 is antiparallel to the rest |
| c.56.1 | HybD-like the HybD fold coincides with the consensus core structure ! | Phosphorylase/hydrolase-like core: 3 layers, a/b/a ; mixed sheet of 5 strands: order 21354; strand 4 is antiparallel to the rest; contains crossover loops |
| d.13.1 | HIT-like | HIT-like alpha-beta(3)-alpha-beta(2); 3 layers: alpha/beta/alpha |
| a.133.1 | Phospholipase A2, PLA2 | Phospholipase A2, PLA2 common core: 2 helices, disulfide-linked, and a calcium-binding loop |
| d.18.1 | ssDNA-binding transcriptional regulator domain | ssDNA-binding transcriptional regulator domain helix-swapped dimer of beta(4)-alpha motifs |
| c.117.1 | Amidase signature (AS) enzymes | Amidase signature (AS) enzymes possible duplication: the topologies of N- and C-terminal halves are similar; 3 layers: a/b/a; single mixed beta-sheet of 10 strands, order 213549A867 (A=10); strands from 5 to 9 are antiparallel to the rest |
| d.58.49 | YajQ-like duplication: consists of two domains of this fold swapped with their N-terminal strands ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.110.9 | GlcG-like alpha-beta(2)-alpha(3)-beta(2)-alpha; similar to the Roadblock/LC7 domain ! | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| c.144.1 | RibA-like | RibA-like 3 layers: a/b/a; mixed beta-sheet of 7 strands, order 1235467, strands 1 and 3 are antiparallel to the rest; partial topological similarity to some alpha/beta hydrolases (scop_cf 53473) |
| b.55.2 | PA2021-like prokaryotiic proteins of PH domain-like fold lacking the N-terminal strand ! | PH domain-like barrel barrel, partly opened; n*=6, S*=12; meander; capped by an alpha-helix |
| d.342.1 | PH1570-like | PH1570-like duplication: two beta(4)-alpha structural repeats, related by pseudo twofold symmetry; two extra helices in the linker region; single 8-standed antiparallel beta-sheet, order: 12348765 |
| c.8.6 | Swiveling domain of dehydratase reactivase alpha subunit | The "swivelling" beta/beta/alpha domain 3 layers: b/b/a; the central sheet is parallel, and the other one is antiparallel; there are some variations in topology ! this domain is thought to be mobile in most multi-domain proteins known to contain it |
| c.45.1 | (Phosphotyrosine protein) phosphatases II share with the family I the common active site structure with a circularly permuted topology ! | (Phosphotyrosine protein) phosphatases II core: 3 layers, a/b/a; parallel beta-sheet of 4 strands, order 1423 |
| c.68.1 | Nucleotide-diphospho-sugar transferases | Nucleotide-diphospho-sugar transferases 3 layers: a/b/a; mixed beta-sheet of 7 strands, order 3214657; strand 6 is antiparallel to the rest |
| d.58.29 | Nucleotide cyclase common fold is elaborated with additional secondary structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| b.57.1 | Herpes virus serine proteinase, assemblin | Herpes virus serine proteinase, assemblin core: barrel, closed; n=7, S=8; complex topology |
| d.322.1 | PHP14-like | PHP14-like beta(3)-alpha-beta(2)-alpha-beta; 3 layers, a/b/a; mixed beta-sheet, half-barrel, order: 132456; strands 2 and 5 are antiparallel to the rest |
| d.145.1 | FAD-binding/transporter-associated domain-like | FAD-binding/transporter-associated domain-like consists of two alpha+beta subdomains |
| d.126.1 | Pentein | Pentein, beta/alpha-propeller duplication: composed of 5 alpha-beta(2)-alpha-beta units arranged around pseudo fivefold axis |
| d.58.42 | N-utilization substance G protein NusG, N-terminal domain | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| g.48.1 | Ada DNA repair protein, N-terminal domain (N-Ada 10) | Ada DNA repair protein, N-terminal domain (N-Ada 10) metal(zinc)-bound alpha+beta fold |
| d.156.1 | S-adenosylmethionine decarboxylase | S-adenosylmethionine decarboxylase duplication of beta-alpha-beta(4)-alpha-beta-alpha-beta(2) motif; 4 layers a/b/b/a; antiparallel beta-sheets: order 23451687 |
| d.307.1 | Nqo5-like | Nqo5-like core: alpha-beta(2)-alpha-beta(3); 2 layers, a/b; mixed beta-sheet, order 12534, strands 2 and 5 are parallel |
| d.107.1 | Mog1p/PsbP-like | Mog1p/PsbP-like (beta-hairpin)-beta(3)-alpha-beta(4)-alpha; 3 layers: a/b/a; antiparallel beta-sheet of 7 strands; order: 1237654 |
| e.17.1 | D-aminoacid aminotransferase-like PLP-dependent enzymes | D-aminoacid aminotransferase-like PLP-dependent enzymes 2 domains: (1) alpha+beta: beta3-alpha2-beta2; (2) alpha/beta, a part of its mixed sheet forms barrel: n=6, S=8 |
| c.77.1 | Isocitrate/Isopropylmalate dehydrogenase-like the constituent families form similar dimers ! | Isocitrate/Isopropylmalate dehydrogenase-like consists of two intertwined (sub)domains related by pseudo dyad; duplication ! 3 layers: a/b/a; single mixed beta-sheet of 10 strands, order 213A945867 (A=10); strands from 5 to 9 are antiparallel to the rest |
| d.95.2 | Homing endonucleases | Homing endonuclease-like alpha-beta(2)-alpha-beta(2)-alpha; 2 layers: a/b; antiparallel sheet 1243 |
| c.13.1 | CRAL/TRIO domain | SpoIIaa-like core: 4 turns of a (beta-alpha)n superhelix |
| d.17.3 | DsbC/DsbG N-terminal domain-like | Cystatin-like Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet |
| d.129.6 | KA1-like contains a single copy of this fold ! | TBP-like beta-alpha-beta(4)-alpha |
| d.142.1 | Glutathione synthetase ATP-binding domain-like | ATP-grasp Consists of two subdomains with different alpha+beta folds ! shares functional and structural similarities with the PIPK and protein kinase superfamilies |
| d.41.4 | Ribosomal protein L16p/L10e | alpha/beta-Hammerhead core: beta-BETA-alpha-beta-BETA-beta-alpha; contains a beta-hammerhead motif similar to that in barrel-sandwich hybrids |
| e.18.1 | HydB/Nqo4-like | HydB/Nqo4-like 3 domains: (1) all-alpha; (2&3) alpha+beta |
| d.110.1 | Profilin (actin-binding protein) alpha-beta(2)-alpha-beta(5)-alpha ! | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| b.43.4 | Riboflavin synthase domain-like | Reductase/isomerase/elongation factor common domain barrel, closed; n=6, S=10; greek-key |
| e.52.1 | NAD kinase/diacylglycerol kinase-like | NAD kinase/diacylglycerol kinase-like 2 domains: d1 [alpha/beta; related to the PFK N-terminal domain (scop_sf 53784)]; d2 [all-beta; atypical beta-sandwich made of 4 structural repeats of beta(3) unit] |
| b.43.5 | Riboflavin kinase-like | Reductase/isomerase/elongation factor common domain barrel, closed; n=6, S=10; greek-key |
| d.110.4 | SNARE-like beta(2)-alpha-beta(3)-alpha(2) ! | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| d.90.1 | FMN-dependent nitroreductase-like | FMN-dependent nitroreductase-like core: (alpha-beta-alpha-beta)2; 3 layers a/b/a; antiparallel beta-sheet: 1243 |
| c.107.1 | DHH phosphoesterases constituent families have similar domain organization with variable interdomain linker and spatial arrangement of the domains ! | DHH phosphoesterases consists of two non-similar domains ! Domain 1 has parallel sheet of 6 strands, order 321456 ! Domain 2 has mixed sheet of 5 strands, order 12345; strands 1 & 4 are antiparallel to the rest |
| d.223.1 | Polo-box domain Serine/threonine protein kinase-associated motif embedded in two distinct folds ! | Polo-box domain beta(6)-alpha; antiparallel beta-sheet, meander |
| d.74.2 | C-terminal domain of arginine repressor forms trimers with three closely packed beta-sheets ! | DCoH-like beta(2)-alpha-beta(2)-alpha; 2 layers, alpha/beta |
| c.56.3 | Peptidyl-tRNA hydrolase-like | Phosphorylase/hydrolase-like core: 3 layers, a/b/a ; mixed sheet of 5 strands: order 21354; strand 4 is antiparallel to the rest; contains crossover loops |
| c.56.8 | Cgl1923-like | Phosphorylase/hydrolase-like core: 3 layers, a/b/a ; mixed sheet of 5 strands: order 21354; strand 4 is antiparallel to the rest; contains crossover loops |
| c.8.3 | Carbamoyl phosphate synthetase, small subunit N-terminal domain | The "swivelling" beta/beta/alpha domain 3 layers: b/b/a; the central sheet is parallel, and the other one is antiparallel; there are some variations in topology ! this domain is thought to be mobile in most multi-domain proteins known to contain it |
| d.233.1 | Inhibitor of vertebrate lysozyme, Ivy | Inhibitor of vertebrate lysozyme, Ivy alpha(2)-beta(5)-alpha(2); 3 layers a/b/a; meander beta-sheet |
| c.50.1 | Macro domain-like | Macro domain-like 3 layers: a/b/a; mixed beta-sheet of 6 strands, order 165243, strand 3 is antiparallel to the rest |
| d.256.1 | Ta1353-like | Ta1353-like core: beta-alpha-beta(2)-alpha-beta-alpha-beta; 3 layers: a/b/a; antiparallel beta-sheet of 5 strands; order: 51423; |
| d.250.1 | Folate-binding domain some topological similarity to Formylmethanofuran:tetrahydromethanopterin formyltransferase ! | Folate-binding domain duplication: consists of two beta(2)-alpha-beta(3)-alpha subdomains swapped with the first strands |
| a.162.1 | Pre-protein crosslinking domain of SecA | Pre-protein crosslinking domain of SecA core: 4 helices: bundle; flanked by two short beta-hairpins ! duplication: consists of two structural repeats |
| g.8.1 | BPTI-like | BPTI-like disulfide-rich alpha+beta fold |
| d.142.2 | DNA ligase/mRNA capping enzyme, catalytic domain has a circularly permuted topology ! | ATP-grasp Consists of two subdomains with different alpha+beta folds ! shares functional and structural similarities with the PIPK and protein kinase superfamilies |
| d.58.44 | Multidrug efflux transporter AcrB pore domain; PN1, PN2, PC1 and PC2 subdomains duplication: the N- and C-terminal halves of the whole proteins are structurally similar; each half contains two domains of this fold ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.55.5 | Nitrogenase accessory factor-like | Ribonuclease H-like motif 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 32145; strand 2 is antiparallel to the rest |
| e.8.1 | DNA/RNA polymerases "palm" domain has a ferredoxin-like fold, related to that of an adenylyl cyclase domain ! | DNA/RNA polymerases divided into morphological domains including "palm", "thumb" and "fingers"; the catalytic "palm" domain is conserved to all members |
| c.43.1 | CoA-dependent acyltransferases | CoA-dependent acyltransferases core: 2 layers, a/b; mixed beta-sheet of 6 strands, order 324561; strands 3 & 6 are antiparallel to the rest |
| d.329.1 | PF0523-like | PF0523-like beta-alpha-beta-alpha(3)-beta-alpha-beta-alpha; 3 layers, a/b/a; antiparallel beta-sheet, order 4132; some similarity to the PurM C-terminal domain-like fold (scop_cf 56041) |
| d.124.1 | Ribonuclease Rh-like | Ribonuclease Rh-like alpha+beta fold |
| c.52.2 | tRNA-intron endonuclease catalytic domain-like | Restriction endonuclease-like core: 3 layers, a/b/a; mixed beta-sheet of 5 strands, order 12345; strands 2 &, in some families, 5 are antiparallel to the rest |
| d.58.39 | Glutamyl tRNA-reductase catalytic, N-terminal domain common fold is elaborated with additional secondary structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.135.1 | NIF3 (NGG1p interacting factor 3)-like di-iron binding protein ! | NIF3 (NGG1p interacting factor 3)-like consist of two intertwined domains; duplication: contains two structural repeats of alpha-beta-(beta-alpha)3 motif with mixed beta-sheet, order: 1432, strand 1 is antiparallel to the rest |
| d.312.1 | TM1622-like | TM1622-like alpha-beta(3)-alpha-beta(4)-alpha; 3 layers, a/b/a; antiparallel beta-sheet, order: 1237654 |
| d.110.2 | GAF domain-like alpha(2)-beta(3)-alpha-beta(3)-alpha; antiparallel beta-sheet: order 321654 ! | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| d.58.17 | HMA, heavy metal-associated domain | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.339.1 | ORC1-binding domain | ORC1-binding domain complex fold, composed of an alpha hairpin, meander beta-sheet and a five-stranded barrel of unusual topology |
| d.248.1 | Coproporphyrinogen III oxidase | Coproporphyrinogen III oxidase alpha-beta(6)-alpha(2)-beta-alpha(n); 3 layers alpha/beta/alpha; antiparallel sheet: order 1234567 |
| b.74.1 | Carbonic anhydrase | Carbonic anhydrase single sheet; 10 strands |
| d.13.2 | Rotavirus NSP2 fragment, C-terminal domain | HIT-like alpha-beta(3)-alpha-beta(2); 3 layers: alpha/beta/alpha |
| d.104.1 | Class II aaRS and biotin synthetases | Class II aaRS and biotin synthetases contains large mixed beta-sheet |
| d.151.1 | DNase I-like | DNase I-like contains beta-sandwich; duplication of alpha+beta motif |
| d.58.59 | Rnp2-like contains extra C-terminal helix | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.119.1 | DAK1/DegV-like domain folds and architecture show some similarity to the tubulin-like GTPases; the nucleotide-binding sites of the Dihydroxyacetone kinase and tubulin families are different ! | DAK1/DegV-like 2 different domains; d1: [core: 3 layers, a/b/a; parallel sheet of 5 strands, order: 2134]; D2: [2 layers, a/b; mixed sheet of 6 strands, order 321645; strands 2 and 6 are antiparallel to the rest] |
| d.60.1 | Probable bacterial effector-binding domain | Probable bacterial effector-binding domain duplication of beta-alpha-beta(2) motif: antiparallel beta sheet forms barrel (n=6, S=12) |
| d.265.1 | Pseudouridine synthase the active site is the most conserved structural region of the superfamily and is located between the subdomains ! | Pseudouridine synthase consists of two alpha+beta subdomains with some similarity to the ferredoxin-like fold |
| d.172.1 | gp120 core | gp120 core unusual fold |
| d.333.1 | UbiD C-terminal domain-like | UbiD C-terminal domain-like alpha-beta(2)-alpha-beta-alpha-beta(2); 3 layers, a/b/a; mixed beta-sheet, order: 12354, strands 2,3 and 5 are parallel to each other |
| d.57.1 | DNA damage-inducible protein DinI | DNA damage-inducible protein DinI beta-alpha-beta(2)-alpha; 2 layers: alpha/beta; mixed sheet 213; crossing loops |
| d.264.1 | Prim-pol domain | Prim-pol domain consists of two alpha+beta domains |
| b.85.1 | AFP III-like domain duplication: consists of two structural repeats related by pseudo dyad ! | beta-clip double-stranded ribbon sharply bent in two places; the ribbon ends form incomplete barrel; jelly-roll |
| d.41.3 | Pyrimidine nucleoside phosphorylase C-terminal domain | alpha/beta-Hammerhead core: beta-BETA-alpha-beta-BETA-beta-alpha; contains a beta-hammerhead motif similar to that in barrel-sandwich hybrids |
| b.43.2 | FucI/AraA C-terminal domain-like | Reductase/isomerase/elongation factor common domain barrel, closed; n=6, S=10; greek-key |
| b.1.9 | CBD9-like has additional strand at N-terminus; the active site in a similar topological location as the Cu,Zn SOD site ! | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| d.58.34 | Formiminotransferase domain of formiminotransferase-cyclodeaminase. duplication: contains two subdomains of this fold ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.64.2 | TM1457-like forms a homodimer via alpha-helical interface ! | eIF1-like beta(2)-alpha-beta(2)-alpha-beta; 2 layers: alpha/beta; mixed beta-sheet: order 51243 |
| d.128.1 | Glutamine synthetase/guanido kinase | Glutamine synthetase/guanido kinase duplication: common core consists of two beta-alpha-beta2-alpha repeats |
| d.58.6 | Nucleoside diphosphate kinase, NDK | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.141.1 | Glycerate kinase I | Glycerate kinase I consists of two different alpha/beta domains; (1) of the Flavodoxin-like fold (scop_cf 52171); (2) similar to the Restriction endonuclease-like fold (scop_cf 52979), inserted into domain 1 |
| d.376.1 | Lp2179-like | Lp2179-like beta(2)-alpha-beta(4)-alpha-beta; contains two antiparallel beta-sheets (orders: 127 and 3456) packed against the longer C-terminal helix |
| d.105.1 | Subdomain of clathrin and coatomer appendage domain | Subdomain of clathrin and coatomer appendage domain beta-alpha-beta-alpha-beta(4)-alpha; 3 layers: a/b/a; bifurcated antiparallel beta-sheet |
| b.34.13 | Chromo domain-like SH3-like barrel is capped by a C-terminal helix ! | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| d.100.1 | L9 N-domain-like | MbtH/L9 domain-like beta(2)-alpha-beta-alpha; 3 layers: alpha/beta/alpha |
| d.207.1 | Thymidylate synthase-complementing protein Thy1 | Thymidylate synthase-complementing protein Thy1 complex alpha+beta fold; contains antiparallel 5-stranded beta-sheet: order 12354 |
| d.12.1 | Ribosomal proteins S24e, L23 and L15e | Ribosomal proteins S24e, L23 and L15e beta-(alpha)-beta-alpha-beta(2); 3 layers: alpha/beta/alpha; antiparallel beta-sheet: order 1243 |
| d.110.5 | Pheromone-binding domain of LuxR-like quorum-sensing transcription factors alpha(2)-beta(2)-alpha(2)-beta(3)-alpha; possibly related to the PAS domain ! | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| d.58.48 | MTH1187/YkoF-like | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.136.1 | Phospholipase D/nuclease | Phospholipase D/nuclease beta-alpha-beta-alpha-beta-alpha-beta(4)-alpha; mixed sheet: order 1765234 |
| d.190.1 | Chorismate lyase-like | Chorismate lyase-like duplication of alpha(2)-beta(3) motif; antiparallel beta sheet, order 123654 |
| a.119.1 | Lipoxigenase | Lipoxigenase multihelical ! large nearly all-alpha domain |
| c.110.1 | DTD-like active form is a dimer ! | DTD-like beta(2)-(alpha-beta)2-beta(3); 3 layers, a/b/b; some topological similarity to the N-terminal domain of MinC |
| d.58.33 | Formylmethanofuran:tetrahydromethanopterin formyltransferase duplication: contains two subdomains of this fold ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.367.1 | EscU C-terminal domain-like | EscU C-terminal domain-like alpha-beta(3)-alpha-beta-alpha(2); 3 layers, a/b/a; mixed beta-sheet, order: 4123, strand 2 is antiparallel to the rest |
| d.74.3 | RBP11-like subunits of RNA polymerase form homo and heterodimers ! | DCoH-like beta(2)-alpha-beta(2)-alpha; 2 layers, alpha/beta |
| c.102.1 | Cell-division inhibitor MinC, N-terminal domain | Cell-division inhibitor MinC, N-terminal domain beta(2)-(alpha-beta)2-beta; 2 layers, a/b; mixed beta-sheet of 5 strands, order 12345; strands 1 & 5 are antiparallel to the rest |
| c.152.1 | CbiG N-terminal domain-like probable biological unit is a homodimer; putative active site is formed by residues from both subunits | CbiG N-terminal domain-like 3 layers: a/b/a; mixed beta-sheet of 6 strands, order 213456, strand 5 is antiparallel to the rest |
| d.331.1 | NE0471 N-terminal domain-like | NE0471 N-terminal domain-like beta(3)-alpha(n)-beta(3)-alpha; the two meander beta-sheets and helices are packed against the same core |
| d.130.1 | S-adenosylmethionine synthetase | S-adenosylmethionine synthetase duplication: consists of 3 similar intertwined domains ! structural repeat: beta-alpha-beta(2)-alpha-beta; two layers, alpha/beta |
| d.382.1 | PSTPO5379-like | PSTPO5379-like complex fold; consists of two alpha+beta subdomains, one is inserted in the other |
| e.58.1 | Viral ssDNA binding protein | Viral ssDNA binding protein 2 domains; d1: [large alpha+beta domain subdivided into the 'head', 'neck' and 'shoulders' regions; in the 'neck', there is an OB-fold interrupted by large insertions]; d2: [all-alpha, 6 helices; orthogonal array] |
| d.113.1 | Nudix | Nudix beta(2)-alpha-beta(3)-alpha; 3 layers: alpha/beta/alpha; mixed sheet ! contains beta-grasp motif |
| f.11.1 | Anthrax protective antigen | Anthrax protective antigen 4 domains; I (res. 14-225) and II (226-487) are beta-sandwiches of similar gamma-crystallin like topologies; III (488-594) has a beta-grasp like fold; IV (595-735) has an Ig-like fold |
| d.238.1 | Hypothetical protein TM0875 | Hypothetical protein TM0875 unusual fold; core: beta(2)-loop-beta(2)-alpha-beta; mixed beta-sheet: order 51243; parallel strands 2 and 4 |
| b.129.1 | AbrB/MazE/MraZ-like members of this superfamily are known or predicted to have DNA-binding function ! | Double-split beta-barrel pseudobarrel; capped on both ends by alpha-helices |
| d.109.3 | FLJ32549 C-terminal domain-like alpha-beta(2)-alpha-beta(3)-alpha; similar to the Roadblock/LC7 domain | Gelsolin-like 3 layers: a/b/a; contains mixed beta-sheet |
| d.356.1 | SP0830-like | SP0830-like duplication: two beta-alpha-beta(2)-alpha-beta-alpha motifs are organized in ferredoxin-like subdomains swapped with the extra C-terminal helices |
| d.278.1 | Ligand-binding domain in the NO signalling and Golgi transport | Ligand-binding domain in the NO signalling and Golgi transport an N-terminal helical bundle and the C-terminal alpha-beta(2)-alpha-beta(2) subdomain enclose a ligand-binding cavity |
| e.12.1 | DNA topoisomerase IV, alpha subunit | DNA topoisomerase IV, alpha subunit 2 domains: (1) toprim alpha/beta; (2) "winged helix"-like |
| d.219.1 | PP2C-like contain binuclear metal (Mn) centre ! | PP2C-like 4 layers: alpha/beta/beta/alpha; antiparallel beta sheets |
| c.82.1 | ALDH-like binds NAD differently from other NAD(P)-dependent oxidoreductases ! | ALDH-like consists of two similar domains with 3 layers (a/b/a) each; duplication ! core: parallel beta-sheet of 5 strands, order 32145 |
| d.215.1 | Smc hinge domain | Smc hinge domain consists of 2 different alpha+beta subdomains; forms subdomain-swapped dimers |
| d.58.51 | eIF-2-alpha, C-terminal domain | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.58.57 | Transposase IS200-like contains extra N-terminal hairpin and C-terminal helix, both are involved in dimerization; there can be helix-swapping in the dimer ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.87.2 | CO dehydrogenase flavoprotein C-terminal domain-like | CO dehydrogenase flavoprotein C-domain-like core: beta(3,4)-alpha(3); alpha+beta sandwich |
| d.146.1 | Uridine diphospho-N-Acetylenolpyruvylglucosamine reductase, MurB, C-terminal domain | Uridine diphospho-N-Acetylenolpyruvylglucosamine reductase, MurB, C-terminal domain consists of two alpha+beta subdomains |
| a.56.1 | CO dehydrogenase ISP C-domain like contains 2Fe-2S cluster ! | CO dehydrogenase ISP C-domain like core: 4 helices, bundle |
| e.27.1 | Upper collar protein gp10 (connector protein) | Upper collar protein gp10 (connector protein) 2 domains: (1) alpha-helical bundle; (2) beta-barrel (n=5, S=8) |
| e.1.1 | Serpins | Serpins contains a cluster of helices and a beta-sandwich |
| c.56.6 | LigB-like circular permutation of the common fold, most similar to the PNP fold ! | Phosphorylase/hydrolase-like core: 3 layers, a/b/a ; mixed sheet of 5 strands: order 21354; strand 4 is antiparallel to the rest; contains crossover loops |
| b.131.1 | SPOC domain-like | SPOC domain-like barrel, closed; n=7, S=10; complex topology |
| d.334.1 | IlvD/EDD N-terminal domain-like | IlvD/EDD N-terminal domain-like contains a large cluster of helices and a mixed beta-sheet of 4 strands; order 2134, strands 3 and 4 are parallel |
| d.210.1 | Argininosuccinate synthetase, C-terminal domain | Argininosuccinate synthetase, C-terminal domain unusual fold |
| c.106.1 | SurE-like some topological similarity to the N-terminal domain of Glutaminase/Asparaginase family ! | SurE-like 3 layers: a/b/a; mixed beta-sheet of 9 strands, order 342156798; strands 3, 8 and 9 are antiparallel to the rest; left-handed crossover connection between strands 6 and 7 |
| d.41.5 | Molybdopterin synthase subunit MoaE | alpha/beta-Hammerhead core: beta-BETA-alpha-beta-BETA-beta-alpha; contains a beta-hammerhead motif similar to that in barrel-sandwich hybrids |
| d.52.10 | EspE N-terminal domain-like contains extra C-terminal helix that packs against shorter N-terminal helix | Alpha-lytic protease prodomain-like core: alpha-beta(2)-(alpha)-beta; 2 layers: alpha/beta |
| a.117.1 | Ras GEF | Ras GEF multihelical |
| d.58.31 | Methyl-coenzyme M reductase subunits each of the three different subunits, alpha, beta and gamma, contains this fold decorated with additional secondary structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.218.1 | Nucleotidyltransferase | Nucleotidyltransferase core: alpha-beta-turn-beta-X-beta-(alpha); mixed beta-sheet, order of core strands: 123 |
| d.195.1 | YopH tyrosine phosphatase N-terminal domain | YopH tyrosine phosphatase N-terminal domain consists of four alpha-helices and two beta-hairpins |
| d.117.1 | Thymidylate synthase/dCMP hydroxymethylase | Thymidylate synthase/dCMP hydroxymethylase contains large mixed beta-sheet |
| c.79.1 | Tryptophan synthase beta subunit-like PLP-dependent enzymes | Tryptophan synthase beta subunit-like PLP-dependent enzymes consists of two similar domains related by pseudo dyad; duplication ! core: 3 layers, a/b/a; parallel beta-sheet of 4 strands, order 3214 |
| c.55.6 | DNA repair protein MutS, domain II | Ribonuclease H-like motif 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 32145; strand 2 is antiparallel to the rest |
| c.132.1 | Bacterial fluorinating enzyme, N-terminal domain | Bacterial fluorinating enzyme, N-terminal domain 3 layers: a/b/a; mixed beta-sheet of 6 strands; order: 213546, strand 5 is antiparallel to the rest; topological similarity to the MogA-like family fold |
| d.58.19 | Bacterial exopeptidase dimerisation domain | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.52.4 | TBP-interacting protein-like contains extra C-terminal alpha+beta domain of complex fold with an embeded C2H2 zinc-finger | Restriction endonuclease-like core: 3 layers, a/b/a; mixed beta-sheet of 5 strands, order 12345; strands 2 &, in some families, 5 are antiparallel to the rest |
| b.82.3 | cAMP-binding domain-like | Double-stranded beta-helix one turn of helix is made by two pairs of antiparallel strands linked with short turns ! has appearance of a sandwich of distinct architecture and jelly-roll topology |
| d.116.1 | YbaK/ProRS associated domain | YbaK/ProRS associated domain core: alpha-beta-alpha-beta(2)-(alpha-beta)2-alpha-beta(2)-alpha-beta; 3 layers; bifurcated mixed sheet |
| d.67.3 | Ribosome recycling factor, RRF | RRF/tRNA synthetase additional domain-like core: alpha-beta(2)-alpha-beta(2); 2 layers: alpha/beta |
| d.44.1 | Fe,Mn superoxide dismutase (SOD), C-terminal domain | Fe,Mn superoxide dismutase (SOD), C-terminal domain alpha-beta(2)-alpha-beta-alpha(2); 3 strands of antiparallel sheet: 213 |
| d.258.1 | Chorismate synthase, AroC | Chorismate synthase, AroC duplication: consists of two DCoH-like beta(2)-alpha-beta(2)-alpha structural repeats; 3 layers, beta/alpha/beta |
| d.110.8 | YeeU-like beta(2)-alpha-beta(3); 2 layers, a/b; there is an oligomerization interface instead of the 'missing' helical layer ! | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| d.58.56 | CcmK-like contains extra C-terminal helix; forms compact hexameric 'tiles' of hexagonal shape ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.129.11 | YugN-like | TBP-like beta-alpha-beta(4)-alpha |
| d.143.1 | SAICAR synthase-like shares functional and structural similarities with the ATP-grasp fold and protein kinase superfamilies ! | SAICAR synthase-like consists of two alpha+beta subdomains |
| d.366.1 | SpoVG-like probable biological unit is a hexamer (trimer of dimers) | SpoVG-like beta(5)-alpha; comprises a coiled antiparallel beta-sheet (order: 12345) packed against the C-terminal helix; the extensions of strands 4 and 5 form an isolated beta-hairpin |
| a.110.1 | Aldehyde ferredoxin oxidoreductase, C-terminal domains | Aldehyde ferredoxin oxidoreductase, C-terminal domains multihelical; consists of two all-alpha domains |
| d.58.23 | Probable ACP-binding domain of malonyl-CoA ACP transacylase | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.101.1 | Ribonuclease PH domain 2-like | Ribonuclease PH domain 2-like beta(2)-alpha-beta(2)-alpha; 3 layers: alpha/beta/alpha; antiparallel sheet: order 2134 |
| d.129.9 | RalF, C-terminal domain contains a single copy of this fold decorated with additional structures ! | TBP-like beta-alpha-beta(4)-alpha |
| d.58.10 | Acylphosphatase/BLUF domain-like | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| b.62.1 | Cyclophilin-like | Cyclophilin-like barrel, closed; n=8, S=10; complex topology |
| c.57.1 | Molybdenum cofactor biosynthesis proteins | Molybdenum cofactor biosynthesis proteins 3 layers: a/b/a; mixed beta-sheet of 5 strands; order: 21354, strand 5 is antiparallel to the rest; permutation of the Phosphorylase/hydrolase-like fold |
| d.360.1 | PG1857-like | PG1857-like alpha-beta-alpha-beta(2)-alpha(3); 3 layers, a/b/a; antiparallel beta-sheet, order: 132 |
| d.216.1 | Rotavirus NSP2 fragment, N-terminal domain | Rotavirus NSP2 fragment, N-terminal domain consists of six alpha-helices and two beta-hairpins |
| b.121.5 | ssDNA viruses | Nucleoplasmin-like/VP (viral coat and capsid proteins) sandwich; 8 strands in 2 sheets; jelly-roll; some members can have additional 1-2 strands ! characteristic interaction between the domains of this fold allows the formation of five-fold and pseudo six-fold assemblies |
| b.40.5 | Inorganic pyrophosphatase | OB-fold barrel, closed or partly opened n=5, S=10 or S=8; greek-key |
| d.22.1 | GFP-like | GFP-like beta-sheet folds into a barrel (n=11, S=14) around the central helix |
| d.83.2 | Activator of Hsp90 ATPase, Aha1 consists of a single domain of this fold ! | Aha1/BPI domain-like core: [beta]-alpha-beta(5)-alpha; 2 layers: alpha/beta; antiparallel beta-sheet, meander |
| b.28.1 | Baculovirus p35 protein has a few helices inserted in loops ! | Baculovirus p35 protein sandwich; 14 strands in 2 sheets; greek-key |
| d.242.1 | Obg GTP-binding protein C-terminal domain | Obg GTP-binding protein C-terminal domain beta-(2)-alpha(3)-beta(2); 2 layers: beta/alpha; mixed beta-sheet: order 1234; strands 2 and 3 a parallel to each other |
| d.226.1 | GIY-YIG endonuclease | GIY-YIG endonuclease beta(2)-alpha(2)-beta-alpha-(beta); strand 4 is very short; 3 layers; antiparallel (mixed) beta-sheet; order 312(4) |
| a.104.1 | Cytochrome P450 | Cytochrome P450 multihelical |
| d.205.1 | GTP cyclohydrolase I feedback regulatory protein, GFRP | GTP cyclohydrolase I feedback regulatory protein, GFRP beta(2)-alpha-beta(2)-alpha-beta(2); 2 layers, alpha/beta, antiparallel beta-sheet: order 342165 |
| d.129.8 | Rbstp2229 protein forms segment-swapped dimers further organized in hexamers ! | TBP-like beta-alpha-beta(4)-alpha |
| d.52.5 | Probable GTPase Der, C-terminal domain possible distant relative of the Era C-terminal domain lacking the KH motif ! | Alpha-lytic protease prodomain-like core: alpha-beta(2)-(alpha)-beta; 2 layers: alpha/beta |
| a.267.1 | Topoisomerase V catalytic domain-like | Topoisomerase V catalytic domain-like multihelical; irregular array; contains small amount of beta-structure and a 3-helical bundle with a variant homeofomain-like fold and HTH motif (scop_cf 46688) |
| c.99.1 | Dipeptide transport protein | Dipeptide transport protein 3 layers: a/b/a; parallel beta-sheet of 6 strands, order 321456; also contains a C-terminal alpha+beta subdomain |
| d.56.1 | GroEL-intermediate domain like | GroEL-intermediate domain like 3-helical bundle packed against 3-stranded mixed beta-sheet |
| d.162.1 | LDH C-terminal domain-like | LDH C-terminal domain-like unusual fold, defines family |
| d.286.1 | TrkA C-terminal domain-like | TrkA C-terminal domain-like beta-X-beta(2)-X-beta-alpha; pseudo barrel capped by helix at one end; topological similarity to the HPr-like fold |
| b.140.1 | Replicase NSP9 | Replicase NSP9 barrel; n=6, S=8, greek-key; similar to one trypsin-like protease barrel |
| d.63.1 | CYTH-like phosphatases | CYTH-like phosphatases duplication of beta-alpha-beta(3) motif: antiparallel beta sheet forms wide barrel (n=8, S=16) with a channel running through it |
| d.323.1 | Phage tail protein-like Can form ring, tube-like oligomers, where the subunit beta-sheets are joined in a single beta-sheet (or barrel) ! | Phage tail protein-like alpha-beta-X-beta(2)-alpha-beta(2); 2 layers: a/b; mixed beta-sheet: order 12354, strands 1 and 2 are parallel |
| d.267.1 | Hypothetical protein SAV1430 | Hypothetical protein SAV1430 beta(3)-alpha-beta(2)-alpha; 2 layers, alpha/beta; antiparallel beta-sheet, order: 12543 |
| d.178.1 | Aromatic aminoacid monoxygenases, catalytic and oligomerization domains | Aromatic aminoacid monoxygenases, catalytic and oligomerization domains unusual fold |
| c.52.3 | Eukaryotic RPB5 N-terminal domain | Restriction endonuclease-like core: 3 layers, a/b/a; mixed beta-sheet of 5 strands, order 12345; strands 2 &, in some families, 5 are antiparallel to the rest |
| d.58.21 | Molybdenum cofactor biosynthesis protein C, MoaC | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| b.153.1 | PheT/TilS domain contains putative tRNA-binding structural motif ! | PheT/TilS domain core: 3 layers; contains beta-sandwich of unusual topology |
| d.52.7 | Ribosome-binding factor A, RbfA possible distant homologue of the type I KH domain lacking the KH motif ! | Alpha-lytic protease prodomain-like core: alpha-beta(2)-(alpha)-beta; 2 layers: alpha/beta |
| d.74.1 | PCD-like has additional alpha helix at the N-terminus ! | DCoH-like beta(2)-alpha-beta(2)-alpha; 2 layers, alpha/beta |
| d.179.1 | Substrate-binding domain of HMG-CoA reductase | Substrate-binding domain of HMG-CoA reductase unusual fold |
| d.280.1 | Sulfolobus fructose-1,6-bisphosphatase-like | Sulfolobus fructose-1,6-bisphosphatase-like 4 layers: a/b/b/a; antiparallel beta sheets; similarities to ferredoxin-like fold (scop_cf 54861) in the N-terminal part (1-120) and to the Bacterial S-adenosylmethionine decarboxylase subunit (scop_fa 997656) in the C-terminal part (121-340) |
| d.148.1 | Hect, E3 ligase catalytic domain | Hect, E3 ligase catalytic domain consists of two alpha+beta domains; the N-terminal domain is array of helices and beta-hairpins; the C-terminal domain is an a/b sandwich with one left-handed beta-alpha(n)-beta unit; conformational flexibility of domain orientation |
| d.58.20 | NAD-binding domain of HMG-CoA reductase | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| e.69.1 | Poly(A) polymerase catalytic subunit-like Central domain d2 is distantly related to the nucleotidyltransferase superfamily (scop_sf 81301) | Poly(A) polymerase catalytic subunit-like 3 domains; d1: all-alpha, contains HhH motif; d2: alpha+beta of nucleotidyltransferase fold (scop_cf 81302); d3: [alpha+beta; beta(3)-alpha-beta(3)-alpha(2); 3 layers: a/b/a; mixed beta-sheet of 6 strands, order 123654, strands 2 and 5 are antiparallel to the rest |
| g.45.1 | ArfGap/RecO-like zinc finger | ArfGap/RecO-like zinc finger zinc-bound alpha+beta motif |
| d.308.1 | THUMP domain-like predicted RNA-binding function ! | THUMP domain contains mixed 8-stranded beta-sheet, folded into a half-barrel and covered with 4 helices on the outside; order 32148756; strands 5, 6 and 7 are parallel |
| d.347.1 | Acetoacetate decarboxylase-like | Acetoacetate decarboxylase-like complex fold: contains a 3-layer beta-sheet structure, which is folded in two conjoint barrels capped by helices; one rounded barrel has 7 strands, the other flattened barrel has 9 strands |
| b.82.4 | Regulatory protein AraC | Double-stranded beta-helix one turn of helix is made by two pairs of antiparallel strands linked with short turns ! has appearance of a sandwich of distinct architecture and jelly-roll topology |
| d.263.1 | Hypothetical protein Yml108w | Hypothetical protein Yml108w beta(2)-alpha-beta(2)-alpha; 2 layers, alpha/beta; mixed beta-sheet 2143, strands 1 and 4 are parallel |
| d.198.1 | Type III secretory system chaperone-like | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| d.310.1 | VC0467-like | VC0467-like complex fold; contains bifurcated beta-sheet structure folded into pseudo barrel |
| d.58.1 | 4Fe-4S ferredoxins | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| e.62.1 | Heme iron utilization protein-like | Heme iron utilization protein-like 2 domains; d1 - 3-helical bundle similar to the homeodomain-like fold; d2 - 6-stranded beta-barrel capped by two helices at one end, similar topology to the PH-like fold |
| b.141.1 | Bacterial fluorinating enzyme, C-terminal domain | Bacterial fluorinating enzyme, C-terminal domain barrel, closed; n=7, S=10; greek-key topology; one overside connection |
| d.58.54 | YbeD/HP0495-like | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| e.23.1 | Acetyl-CoA synthetase-like | Acetyl-CoA synthetase-like 4 domains: (1&2) duplication: share the same alpha/beta fold; (3) beta-barrel; (4) alpha+beta |
| d.79.1 | YjgF-like forms trimers with three closely packed beta-sheets; possibly related to the IspF ( | Bacillus chorismate mutase-like core: beta-alpha-beta-alpha-beta(2); mixed beta-sheet: order: 1423, strand 4 is antiparallel to the rest |
| b.68.7 | Tricorn protease N-terminal domain possibly related to the second domain of tricorn protease (a distorted 7-bladed beta-propeller) ! | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| d.222.1 | YbaB-like forms tight dimer of a 3-layer structure: beta/alpha/beta ! | YbaB-like core: alpha-beta(3)-alpha, 2 layers:alpha/beta, three-stranded antiparallel beta sheet, strand order 123 |
| b.178.1 | PA1994-like | Spiral beta-roll a large 15-stranded beta-sheet rolled about a single helix core; overlapping edges form a sandwich-like structure; topological similarity to the LolA-like fold (scop_cf 89391) |
| f.10.1 | Viral glycoprotein, central and dimerisation domains | Viral glycoprotein, central and dimerisation domains 2 intertwined domains; all-beta and alpha+beta |
| b.7.5 | Smr-associated domain-like | C2 domain-like sandwich; 8 strands in 2 sheets; greek-key |
| f.12.1 | Head and neck region of the ectodomain of NDV fusion glycoprotein | Head and neck region of the ectodomain of NDV fusion glycoprotein 3 intertwined all-beta domains |
| e.35.1 | Membrane penetration protein mu1 | Membrane penetration protein mu1 4 domains: three intertwined predominately alpha domains and one jelly-roll beta-sandwich |
| d.147.1 | Methenyltetrahydromethanopterin cyclohydrolase | Methenyltetrahydromethanopterin cyclohydrolase consists of two alpha+beta subdomains |
| e.25.1 | Sec1/munc18-like (SM) proteins | Sec1/munc18-like (SM) proteins 3 domains: (1 and 2) alpha+beta; (3) mostly alpha, inserted in domain 2 |
| d.127.1 | Creatinase/aminopeptidase | Creatinase/aminopeptidase duplication: composed of two very similar alpha+beta folds |
| d.58.22 | TRADD, N-terminal domain | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.129.5 | MoaD-related protein, C-terminal domain contains a single copy of this fold ! | TBP-like beta-alpha-beta(4)-alpha |
| d.86.1 | eIF4e-like | eIF4e-like beta(2)-alpha-beta(2)-alpha-beta(2)-alpha-beta-2; 2 layers: alpha/beta; antiparallel sheet: 21356478 |
| c.23.17 | Precorrin-8X methylmutase CbiC/CobH fold elaborated with additional structures ! | Flavodoxin-like 3 layers, a/b/a; parallel beta-sheet of 5 strand, order 21345 |
| b.3.6 | Aromatic compound dioxygenase | Prealbumin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands to common fold |
| b.41.1 | PRC-barrel domain | PRC-barrel domain core: barrel, partly opened; n*=5, S*=8; meander |
| c.97.3 | JAB1/MPN domain | Cytidine deaminase-like core: alpha-beta(2)-(alpha-beta)2; 3 layers (a/b/a); mixed beta-sheet of 4 strands, order 2134; strand 1 is antiparallel to the rest |
| d.121.1 | DNA topoisomerase I domain | DNA topoisomerase I domain beta(2)-alpha-beta-(alpha)-beta(2); left-handed crossover between strands 2 & 3 |
| d.302.1 | Coronavirus NSP8-like | Coronavirus NSP8-like core: alpha-beta(2)-alpha-beta(4)-alpha-beta; bifurcated barrel-like beta-sheet |
| c.112.1 | Glycerol-3-phosphate (1)-acyltransferase some topological similarity to the dihydrofolate reductase fold ! | Glycerol-3-phosphate (1)-acyltransferase 3 layers: a/b/a; mixed beta-sheet of 9 strands, order 918736452; strands 1, 2 and 8 are antiparallel to the rest |
| b.34.18 | CarD-like | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| d.303.1 | BB1717-like | BB1717-like complex fold with a bifurcated beta-sheet structure surrounded by helices; contains beta-sheet barrel, closed (n=5, S=8) |
| d.77.1 | RL5-like | RL5-like beta-alpha-beta(2)-alpha-beta(3)-alpha; 2 layers, alpha/beta; antiparallel beta-sheet: order 231654 |
| d.326.1 | XisI-like | XisI-like alpha-beta(4)-alpha-beta-alpha; 2 layers, a/b; antiparallel beta-sheet, order 1234, meander; the open side of beta-sheet provides dimerization interface |
| d.257.1 | Hypothetical protein TM0160 | Hypothetical protein TM0160 duplication: consists of two beta(3)-alpha(2) structural repeats; single barrel-like beta-sheet |
| d.52.9 | Cation efflux protein cytoplasmic domain-like | Alpha-lytic protease prodomain-like core: alpha-beta(2)-(alpha)-beta; 2 layers: alpha/beta |
| b.23.3 | Acetamidase/Formamidase-like decorated fold with additional structures; contains extra C-terminal alpha+beta subdomain: beta(2)-alpha(2)-beta(2): antiparallel beta-sheet, order 1243 ! | CUB-like sandwich, 10 strands in 2 sheets; jelly-roll |
| d.33.1 | SecB-like | SecB-like beta(4)-alpha(2); two layers: alpha/beta; antiparallel sheet: order 1432 |
| b.38.4 | Dom34/Pelota N-terminal domain-like | Sm-like fold core: barrel, open; n*=4, S*=8; meander; SH3-like topology |
| d.271.1 | HSP90 C-terminal domain | HSP90 C-terminal domain alpha-beta(3)-alpha(3); 2 layers, a/b; mixed beta-sheet, order:132; crossing loops |
| d.110.10 | YNR034W-A-like | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| d.266.1 | Hypothetical protein MTH677 | Hypothetical protein MTH677 alpha-beta(2)-alpha; 2 layers a/b; antiparallel beta-hairpin |
| d.83.1 | Bactericidal permeability-increasing protein, BPI duplication: consists of two clear structural repeats of this fold also containing an extra C-terminal beta-hairpin ! | Aha1/BPI domain-like core: [beta]-alpha-beta(5)-alpha; 2 layers: alpha/beta; antiparallel beta-sheet, meander |
| d.91.1 | N-terminal domain of eukaryotic peptide chain release factor subunit 1, ERF1 | N-terminal domain of eukaryotic peptide chain release factor subunit 1, ERF1 alpha-beta-alpha(2)-beta(3)-alpha; 3 layers a/b/a; antiparallel beta-sheet: 4123 |
| e.51.1 | Urocanase | Urocanase 3 domains; d1: alpha+beta [alpha(2)-beta(3); mixed sheet: 213]; d2: alpha/beta of the NAD(P)-binding Rossmann-fold superfamily (scop_sf 51735, most similar to scop_fa 51883 and scop_fa 51736); d3: alpha+beta of the glutamine synthetase/guanido kinase fold (scop_cf 55930); d1 and d3 form a single beta-sheet |
| c.55.2 | Creatinase/prolidase N-terminal domain | Ribonuclease H-like motif 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 32145; strand 2 is antiparallel to the rest |
| e.48.1 | Major capsid protein VP5 | Major capsid protein VP5 large protein without apparent domain division |
| d.305.1 | NAP-like | NAP-like core: central meander 4-stranded beta-sheet (order: 1234) transversed by a C-terminal helix |
| d.52.2 | GMP synthetase C-terminal dimerisation domain | Alpha-lytic protease prodomain-like core: alpha-beta(2)-(alpha)-beta; 2 layers: alpha/beta |
| d.115.1 | YrdC/RibB | YrdC/RibB core: alpha-beta(2)-alpha-beta-alpha(2)-beta(2)-alpha-beta-alpha-beta; 3 layers; mixed twisted sheet of 7 strands; order 7126354; strands 7 and 1 are parallel to each other |
| d.94.2 | Putative transcriptional regulator TM1602, C-terminal domain | HPr-like beta-alpha-beta(2)-alpha-beta-alpha; 2 layers: a/b; antiparallel sheet 1423 |
| d.84.1 | Subtilisin inhibitor | Subtilisin inhibitor alpha+beta sandwich |
| d.129.10 | YwmB-like duplication: tandem repeat of two circularly permuted motifs, alpha-beta-alpha-beta(4), assembled as in the TATA-box binding domain; forms a swapped dimer by exchanging the equivalent parts of the C-terminal motifs ! | TBP-like beta-alpha-beta(4)-alpha |
| a.127.1 | L-aspartase-like | L-aspartase-like multihelical, consists of three all-alpha domains |
| d.340.1 | CofE-like | CofE-like consists of two different domains; d1: beta-alpha-beta-alpha-beta(2)-alpha-beta, mixed sheet of 5 strands, order:15234, strands 2 and 3 are parralel; d2 is inserted in d1 after strand 2 and comprises a helix-turn-helix motif and two 3-stranded sheets |
| e.41.1 | Adenylylcyclase toxin (the edema factor) Domain 1 has topological and active site similarity to the Nucleotidyltransferases (eg. 1kny N-domain); domain 3 binds calmodulin ! | Adenylylcyclase toxin (the edema factor) 3 domains: (1&2) alpha+beta, with domain 2 being inserted in domain 1; (3) all-alpha |
| d.36.1 | Chalcone isomerase | Chalcone isomerase beta(3)-alpha(2)-beta-alpha(2)-beta3; 2 layers alpha/beta; antiparallel sheet: order 1234567 |
| d.58.28 | Peptide methionine sulfoxide reductase common fold is elaborated with additional secondary structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.87.1 | UDP-Glycosyltransferase/glycogen phosphorylase | UDP-Glycosyltransferase/glycogen phosphorylase consists of two non-similar domains with 3 layers (a/b/a) each ! domain 1: parallel beta-sheet of 7 strands, order 3214567 ! domain 2: parallel beta-sheet of 6 strands, order 321456 |
| c.138.1 | Indigoidine synthase A-like | Indigoidine synthase A-like core: 3 layers, a/b/a; parallel beta-sheet of 7 strands, order 2134756 |
| d.74.5 | PH0987 N-terminal domain-like | DCoH-like beta(2)-alpha-beta(2)-alpha; 2 layers, alpha/beta |
| d.58.46 | eEF1-gamma domain elaborated with additional structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.197.1 | Protein-L-isoaspartyl O-methyltransferase, C-terminal domain | Protein-L-isoaspartyl O-methyltransferase, C-terminal domain beta-alpha-beta(4)-alpha-beta(2); 3 layers: beta/alpha/beta; buried helix |
| b.85.5 | Tlp20, baculovirus telokin-like protein similar to dUTPase in fold and trimeric assembly ! | beta-clip double-stranded ribbon sharply bent in two places; the ribbon ends form incomplete barrel; jelly-roll |
| d.58.30 | 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase, HPPK common fold is elaborated with additional secondary structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.1.20 | tRNA-guanine transglycosylase | TIM beta/alpha-barrel contains parallel beta-sheet barrel, closed; n=8, S=8; strand order 12345678 ! the first seven superfamilies have similar phosphate-binding sites |
| d.58.27 | Translational regulator protein regA common fold is elaborated with additional secondary structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| a.2.10 | Epsilon subunit of F1F0-ATP synthase C-terminal domain | Long alpha-hairpin 2 helices; antiparallel hairpin, left-handed twist |
| e.39.1 | YebC-like | YebC-like 3 domains: (1) 3-helical bundle; (2 and 3 ) alpha+beta of different folds: domain 3 has a ferredoxin-like fold and is inserted in domain 2 |
| d.175.1 | Penicillin binding protein dimerisation domain | Penicillin binding protein dimerisation domain unusual fold |
| a.15.1 | TAF(II)230 TBP-binding fragment | TAF(II)230 TBP-binding fragment 3 short helices; irregular array |
| d.332.1 | RGC domain-like | RGC domain-like consists of two beta-sheets and four helices eclosing a cental cavity |
| d.359.1 | BH3703-like | BH3703-like alpha-beta(3)-alpha-beta(2)-alpha(2); antiparallel beta-sheet, order:32145; duplication: two alpha-beta(2) structural repeats are arranged with pseudo twofold symmetry |
| d.102.1 | Regulatory factor Nef | Regulatory factor Nef alpha(2)-beta(4)-alpha; 3 layers: alpha/beta/alpha |
| c.146.1 | YgbK-like | YgbK-like consists of two domains with partial topological similarity to the P-loop kinases but without the P-loop motif; the domain association results in the formation of a single mixed beta-sheet of 15 strands |
| c.83.1 | Aconitase iron-sulfur domain | Aconitase iron-sulfur domain consists of three similar domains with 3 layers (a/b/a) each; duplication ! core: parallel beta-sheet of 5 strands, order 32145 |
| d.189.1 | PX domain | PX domain beta(3)-alpha(4); meander beta-sheet packed against array of helices; contains Pro-rich stretch |
| e.57.1 | Vacuolar ATP synthase subunit C | Vacuolar ATP synthase subunit C 2 alpha+beta (sub)domains [each has a ferredoxin-like fold; scop_cf 54861], connected with 3-helical bundle; duplication: two repeats of beta-alpha-beta-[alpha coiled-coil]-beta-alpha-beta motif |
| c.23.11 | Beta-D-glucan exohydrolase, C-terminal domain | Flavodoxin-like 3 layers, a/b/a; parallel beta-sheet of 5 strand, order 21345 |
| b.9.1 | Neurophysin II duplication: composed of two structural repeats ! | Neurophysin II sandwich; 8 strands in 2 sheets; meander |
| d.160.1 | Carbon-nitrogen hydrolase | Carbon-nitrogen hydrolase 4 layers: alpha/beta/beta/alpha; mixed beta sheets; contains duplication |
| b.124.1 | HesB-like domain | HesB-like domain barrel, closed; n=7, S=10; complex topology |
| d.281.1 | Hemolytic lectin CEL-III, C-terminal domain | Hemolytic lectin CEL-III, C-terminal domain unusual fold |
| g.41.4 | Casein kinase II beta subunit | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| d.292.1 | DNA mismatch repair protein MutL | DNA mismatch repair protein MutL consists of two different alpha+beta (sub)domains; d1: [beta(3)-alpha-(insert of d2)-alpha(2)-beta; 2 layers, a/b; antiparallel sheet, order: 1234]; d2: [beta-alpha-beta(2)-alpha(2); 2 layers, a/b; antiparallel sheet, order: 132] |
| d.193.1 | Hsp33 domain | Hsp33 domain 3 layers: beta/alpha/beta; buried helix |
| d.52.4 | YhbC-like, N-terminal domain | Alpha-lytic protease prodomain-like core: alpha-beta(2)-(alpha)-beta; 2 layers: alpha/beta |
| d.58.50 | Hypothetical protein TT1725 | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.227.1 | OsmC-like | OsmC-like swapped dimer of beta(3)-alpha-beta(2)-alpha(2)-beta subunits; mixed beta-sheet; order: 321[4][5][6]; buried helix |
| e.55.1 | Rap/Ran-GAP | Rap/Ran-GAP consists of two domains; d1: alpha+beta (78-190; alpha-beta(4)-alpha-beta-alpha; 3 layers; antiparallel beta-sheet of 5 strands; order 51234); d2: alpha/beta similar to the G-domain fold (191-381; scop_fa 52592) |
| d.313.1 | Prenyltransferase-like the barrel channel harbours the substrate-binding site ! | Antiparallel beta/alpha barrel (PT-barrel) tandem repeat of five alpha(2)-beta(2) motifs; antiparallel beta-sheet barrel, closed; n=10, S=10; order 123456789A; there is a channel along the barrel axis |
| a.102.2 | Seven-hairpin glycosidases | alpha/alpha toroid multihelical; up to seven alpha-hairpins are arranged in closed circular array; there may be sequence similarities between different superfamilies |
| d.75.1 | tRNA-intron endonuclease N-terminal domain-like | MutS N-terminal domain-like beta(2)-alpha-beta(2)-alpha-beta(2); 2 layers, alpha/beta |
| a.75.1 | Ribosomal protein S7 | Ribosomal protein S7 core: 5 helices; contains one more helix and a beta-hairpin outside the core |
| d.351.1 | NMB0488-like | NMB0488-like duplication: two beta(3)-alpha motifs are related by pseudo twofold symmetry; single antiparrallel beta-sheet, order:321456, shaped into a half-barrel; helical linker region |
| a.296.1 | PMT central region-like | PMT central region-like multihelical; comprises two four-helical bundles of different topologies and an irregular helical array packed against a small beta-sheet |
| d.129.7 | TT1751-like contains a single copy of this fold decorated with additional structures; forms dimer ! | TBP-like beta-alpha-beta(4)-alpha |
| e.73.1 | CV3147-like | CV3147-like 2 domains; d1: [alpha/beta; 3 layers, a/b/a, mixed beta-sheet of 8 strands, order 12543876, strands 1, 7 and 8 are antiparallel to the rest]; d2: [pseudo beta-barrel of 6 strands, meander] |
| d.261.1 | Hypothetical protein PH1602 | Hypothetical protein PH1602 complex alpha+beta fold; contains a region of similarity to the ferredoxin-like fold |
| d.241.2 | Trigger factor ribosome-binding domain | Ribosome binding domain-like beta-(2)-alpha(2)-beta(2); 2 layers: beta/alpha; antiparallel beta-sheet: order 1243; topological similarity to the common core of ribosomal proteins L23 and L15e |
| b.94.1 | Olfactory marker protein | Olfactory marker protein sandwich; 8 strands in 2 sheets; jelly-roll |
| d.173.1 | Methionine synthase activation domain-like | Methionine synthase activation domain-like unusual fold; core: beta-alpha(2)-beta(2)-alpha(2)-beta-alpha-beta; antiparallel beta-sheet: order 12354 |
| c.96.1 | Fe-only hydrogenase | Fe-only hydrogenase consist of two intertwined domains; contains partial duplication |
| d.282.1 | SSo0622-like the dimer, formed in the crystals, is a probable biological unit ! | SSo0622-like alpha(2)-beta(2)-alpha-beta-alpha-beta(2)-alpha; 2 layers: a/b; antiparallel beta-sheet: order 21354; strands 1,3 and 5 and the C-terminal helix are longer than other secondary structures |
| b.3.3 | VHL | Prealbumin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands to common fold |
| b.69.8 | Integrin alpha N-terminal domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| d.125.1 | Ornithine decarboxylase C-terminal domain | Ornithine decarboxylase C-terminal domain complex alpha+beta motif |
| a.264.1 | Duffy binding domain-like | Duffy binding domain-like consist of two subdomains, each containing a three-helical bundle |
| b.103.1 | MoeA N-terminal region -like | MoeA N-terminal region -like complex fold made of bifurcated and coiled b-sheets |
| e.71.1 | AF1531-like | AF1531-like 2 domains; d1: incomplete barrel similar to the OB-fold domain of ribosomal L2 protein, d2: six helices, array |
| d.199.1 | DNA-binding C-terminal domain of the transcription factor MotA | MotA C-terminal domain-like alpha-beta(4)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| g.41.17 | CSL zinc finger | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| d.232.1 | Mago nashi protein | Mago nashi protein beta(4)-alpha-beta(2)-alpha; 2 layers: alpha/beta; antiparallel beta-sheet, order: 651234 |
| d.364.1 | PA1123-like | PA1123-like irregular array of short helices and two three-stranded beta-sheets |
| d.319.1 | TTHA1528-like | TTHA1528-like beta-alpha-beta(3)-alpha-beta-alpha(2)-beta; 3 layers: a/b/a; mixed beta-sheet, order: 143256, parallel strands' pairs are 1-4 and 2-5 |
| d.79.4 | PurM N-terminal domain-like | Bacillus chorismate mutase-like core: beta-alpha-beta-alpha-beta(2); mixed beta-sheet: order: 1423, strand 4 is antiparallel to the rest |
| f.33.1 | Calcium ATPase, transmembrane domain M | Calcium ATPase, transmembrane domain M core: multihelical; consists of three transmembrane regions of 2, 2 and 6 helices, separated by cytoplasmic domains |
| d.58.13 | Anticodon-binding domain of PheRS | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.79.9 | BB2672-like contains extra N-terminal strand and a beta-hairpin insertion between strands 3 and 4 that packs against the main beta-sheet | Bacillus chorismate mutase-like core: beta-alpha-beta-alpha-beta(2); mixed beta-sheet: order: 1423, strand 4 is antiparallel to the rest |
| d.25.1 | Mitochondrial glycoprotein MAM33-like | Mitochondrial glycoprotein MAM33-like core: beta(7)-alpha(2); N- and C-terminal extensions form a coiled coil subdomain |
| b.67.3 | Apyrase distorted propeller with an alpha helix inserted between the second and third blades ! | 5-bladed beta-propeller consists of five 4-stranded beta-sheet motifs; meander |
| a.113.1 | DNA repair protein MutS, domain III | DNA repair protein MutS, domain III multihelical; consists of 2 all-alpha subdomains |
| c.1.33 | EAL domain-like variant of the beta/alpha-barrel fold with strand 1 being antiparallel to the rest ! | TIM beta/alpha-barrel contains parallel beta-sheet barrel, closed; n=8, S=8; strand order 12345678 ! the first seven superfamilies have similar phosphate-binding sites |
| d.58.60 | Bacterial polysaccharide co-polymerase-like Decorated common fold with extra helical regions, which facilitate oligomerization | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| a.294.1 | Tex N-terminal region-like | Tex N-terminal region-like multihelical; irregular array of long and short helices; can be divided into several subdomains |
| d.283.1 | Putative modulator of DNA gyrase, PmbA/TldD | Putative modulator of DNA gyrase, PmbA/TldD consists of two different alpha+beta domains; d1: [duplication of alpha-beta(3)-alpha motif; 2 layers: a/b; antiparallel beta-sheet, order: 321456; strands 1, 2, 4 and 5 are twice longer than other secondary structures]; d2 [ complex fold; contains beta-barrel (n=5, S=10)] |