| SCOP superfamily ID |
superfamiily description |
corresponding fold description |
| 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.19.1 | MHC antigen-recognition domain | MHC antigen-recognition domain dimeric |
| b.59.1 | XRCC4, N-terminal domain an HTH motif connects strands 4 and 5 ! | XRCC4, N-terminal domain barrel, closed; n=7, S=10; order: 1234765; strands 1 and 5 are parallel to each other |
| b.125.1 | Prokaryotic lipoproteins and lipoprotein localization factors | LolA-like prokaryotic lipoproteins and lipoprotein localization factors 11 stranded sheet partly folded in a corner-like structure filled with a few short helices |
| b.69.4 | WD40 repeat-like also contains 8-bladed propellers ! | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| 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 |
| 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 |
| b.1.8 | Cu,Zn superoxide dismutase-like has additional strand at N-terminus ! | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| 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 |
| b.29.1 | Concanavalin A-like lectins/glucanases | Concanavalin A-like lectins/glucanases sandwich; 12-14 strands in 2 sheets; complex topology |
| d.3.1 | Cysteine proteinases the constitute families differ by insertion into and circular permutation of the common catalytic core made of one alpha-helix and 3-strands of beta-sheet ! | Cysteine proteinases consists of one alpha-helix and 4 strands of antiparallel beta-sheet and contains the catalytic triad Cys-His-Asn |
| b.71.1 | Glycosyl hydrolase domain this domain is C-terminal to the catalytic beta/alpha barrel domain ! | Glycosyl hydrolase domain folded sheet; greek-key |
| 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 |
| d.131.1 | DNA clamp | DNA clamp contains two helices and two beta sheets ! duplication: fold has internal pseudo two-fold symmetry |
| 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 |
| e.1.1 | Serpins | Serpins contains a cluster of helices and a beta-sandwich |
| b.70.2 | C-terminal (heme d1) domain of cytochrome cd1-nitrite reductase | 8-bladed beta-propeller consists of eight 4-stranded beta-sheet motifs; meander ! also found in some members of the WD40-repeat superfamily |
| b.69.6 | Clathrin heavy-chain terminal domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.157.1 | Hcp1-like probable biological unit is a ring-like hexamer containing a 24-stranded beta-barrel made of the subunit beta-sheets ! | Hcp1-like barrel, closed; n=6, S=12; contains extra, non-barrel strand 7 at the C-terminus |
| d.17.1 | Cystatin/monellin has a additional strand at the N-terminus ! | Cystatin-like Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet |
| b.30.5 | Galactose mutarotase-like probable carbohydrate-binding domain in enzymes acting on sugars ! | Supersandwich sandwich; 18 strands in 2 sheets |
| b.126.1 | Adsorption protein p2 | Adsorption protein p2 multisheet protein containing partial beta-propeller and beta-sandwich regions |
| d.246.1 | mRNA decapping enzyme DcpS N-terminal domain forms swapped dimer with two 6-stranded antiparallel beta sheets; order 1236[5][4] ! | mRNA decapping enzyme DcpS N-terminal domain beta(3)-alpha-beta(3)-alpha; 3 layers a/b/a |
| b.55.1 | PH domain-like | PH domain-like barrel barrel, partly opened; n*=6, S*=12; meander; capped by an alpha-helix |
| b.69.3 | Nitrous oxide reductase, N-terminal domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| d.104.1 | Class II aaRS and biotin synthetases | Class II aaRS and biotin synthetases contains large mixed beta-sheet |
| b.68.5 | YWTD domain | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| 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 |
| b.69.9 | Tricorn protease domain 2 distorted 7-bladed beta-propeller fold; possibly related to the N-terminal domain of tricorn protease (a 6-bladed beta-propeller) ! | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| 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 |
| b.69.12 | Sema domain irregular 7-bladed beta-propeller with a large insertion in the fifth blade ! | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.68.1 | Sialidases | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| b.67.2 | Arabinanase/levansucrase/invertase | 5-bladed beta-propeller consists of five 4-stranded beta-sheet motifs; meander |
| b.113.1 | N-terminal domain of MutM-like DNA repair proteins | N-terminal domain of MutM-like DNA repair proteins pseudobarrel; capped on both ends by alpha-helices |
| b.61.2 | beta-Barrel protease inhibitors | Streptavidin-like barrel, closed; n=8, S=10; meander |
| b.69.2 | YVTN repeat-like/Quinoprotein amine dehydrogenase | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| 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 |
| b.76.1 | Outer surface protein 21 stranded sheet partly folded upon itself at the ends ! | open-sided beta-meander single sheet formed by beta-hairpin repeats; exposed on both sides in the middle |
| d.198.1 | Type III secretory system chaperone-like | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| 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.86.1 | eIF4e-like | eIF4e-like beta(2)-alpha-beta(2)-alpha-beta(2)-alpha-beta-2; 2 layers: alpha/beta; antiparallel sheet: 21356478 |
| d.198.2 | Arp2/3 complex subunits | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| d.18.1 | ssDNA-binding transcriptional regulator domain | ssDNA-binding transcriptional regulator domain helix-swapped dimer of beta(4)-alpha motifs |
| 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 |
| b.69.14 | Nucleoporin domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.27.1 | Soluble secreted chemokine inhibitor, VCCI | Soluble secreted chemokine inhibitor, VCCI sandwich; 11 strands in 2 sheets; greek-key |
| d.36.1 | Chalcone isomerase | Chalcone isomerase beta(3)-alpha(2)-beta-alpha(2)-beta3; 2 layers alpha/beta; antiparallel sheet: order 1234567 |
| b.26.1 | SMAD/FHA domain has a few short helices inserted in loops ! | SMAD/FHA domain sandwich; 11 strands in 2 sheets; greek-key |
| c.111.1 | Activating enzymes of the ubiquitin-like proteins transfer adenylyl group to the C-terminal carboxyl group of the ubiquitin and MoaD/ThiS-related proteins ! the ATP nucleotide-binding site is similar to that of the NAD-binding Rossmann-folds ! | Activating enzymes of the ubiquitin-like proteins 3 layers: a/b/a; mixed beta-sheet of 8 strands, order 32145678; strands 6 and 8 are antiparallel to the rest |
| b.64.1 | Mannose 6-phosphate receptor domain | Mannose 6-phosphate receptor domain barrel, partly open; n*=8, S*=10; one psi loop |
| b.70.1 | Quinoprotein alcohol dehydrogenase-like | 8-bladed beta-propeller consists of eight 4-stranded beta-sheet motifs; meander ! also found in some members of the WD40-repeat superfamily |
| b.21.1 | Virus attachment protein globular domain | Virus attachment protein globular domain sandwich, 10 strands in 2 sheets; greek-key |
| 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 |
| b.70.3 | DPP6 N-terminal domain-like | 8-bladed beta-propeller consists of eight 4-stranded beta-sheet motifs; meander ! also found in some members of the WD40-repeat superfamily |
| 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.17.2 | Amine oxidase N-terminal region | Cystatin-like Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet |
| b.24.1 | Hyaluronate lyase-like, C-terminal domain | Hyaluronate lyase-like, C-terminal domain sandwich, 10 strands in 2 sheets; "folded meander" |
| d.232.1 | Mago nashi protein | Mago nashi protein beta(4)-alpha-beta(2)-alpha; 2 layers: alpha/beta; antiparallel beta-sheet, order: 651234 |
| b.60.1 | Lipocalins bind hydrophobic ligands in their interior ! | Lipocalins barrel, closed or opened; n=8, S=12; meander |
| b.69.8 | Integrin alpha N-terminal domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.68.9 | NHL repeat | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| d.98.1 | beta-lactamase-inhibitor protein, BLIP | BLIP-like alpha(2)-beta(4); 2 layers: alpha/beta |
| d.338.1 | Oxysterol-binding protein-like | Oxysterol-binding protein-like core: large meander beta-sheet of 12 strands wrapped around the N-terminal (distorted) alpha-hairpin; some similarity to transmembrane beta-barrel proteins |
| d.144.1 | Protein kinase-like (PK-like) shares functional and structural similarities with the ATP-grasp fold and PIPK ! | Protein kinase-like (PK-like) consists of two alpha+beta domains, C-terminal domain is mostly alpha helical |
| b.38.1 | Sm-like ribonucleoproteins | Sm-like fold core: barrel, open; n*=4, S*=8; meander; SH3-like topology |
| 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 |
| f.10.1 | Viral glycoprotein, central and dimerisation domains | Viral glycoprotein, central and dimerisation domains 2 intertwined domains; all-beta and alpha+beta |
| d.96.2 | ApbE-like duplication: contains two differently decorated beta(2)-alpha(2)-beta(2) subdomains, similar to other T-fold domains; probably does not form the tunnel-shaped oligomers ! | T-fold beta(2)-alpha(2)-beta(2); 2 layers: alpha/beta; antiparallel sheet 1234 ! tunnel-shaped: its known members form wide oligomeric barrels different sizes |
| 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 |
| d.153.2 | Archaeal IMP cyclohydrolase PurO has a putative active site in the same topological location as the Ntn hydrolase but lacks the N-terminal nucleophile ! | Ntn hydrolase-like 4 layers: alpha/beta/beta/alpha; has an unusual sheet-to-sheet packing |
| f.4.3 | Porins | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| b.74.1 | Carbonic anhydrase | Carbonic anhydrase single sheet; 10 strands |
| b.69.7 | Peptidase/esterase 'gauge' domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.82.1 | RmlC-like cupins | 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 |
| b.68.8 | Fucose-specific lectin | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| 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.165.1 | Ribosome inactivating proteins (RIP) | Ribosome inactivating proteins (RIP) contains mixed beta-sheet |
| b.61.5 | Dipeptidyl peptidase I (cathepsin C), exclusion domain | Streptavidin-like barrel, closed; n=8, S=10; meander |
| b.66.1 | Hemopexin-like domain | 4-bladed beta-propeller consists of four 4-stranded beta-sheet motifs; meander |
| d.98.2 | BT0923-like Duplication: tandem repeat of two similar structural subdomains, which associate like the BLIP repeats but differ from them by transposition of the helices | BLIP-like alpha(2)-beta(4); 2 layers: alpha/beta |
| d.24.1 | Pili subunits bacterial filament proteins ! | Pili subunits contains very long N-terminal helix, which end is packed against beta-sheet |
| b.134.1 | Smp-1-like | Smp-1-like sandwich; 9 strands in 2 sheets; greek-key/jelly-roll |
| b.69.10 | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| d.383.1 | PG1388-like | PG1388-like consists of 2 alpha+beta subdomains, each having a meander beta-sheet; d1: alpha(2)-beta(7); d2: alpha(2)-beta(2)-alpha(2)-beta(2) |
| b.69.1 | Galactose oxidase, central domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.130.1 | Heat shock protein 70kD (HSP70), peptide-binding domain | Heat shock protein 70kD (HSP70), peptide-binding domain beta-sandwich: 8 strands in 2 sheets |
| b.68.3 | Thermostable phytase (3-phytase) | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| d.17.5 | Uracil-DNA glycosylase inhibitor protein has an additional strand at the C-terminus and a helix inserted after the first strand ! | Cystatin-like Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet |
| b.61.7 | Extracellular hemoglobin linker subunit, receptor domain | Streptavidin-like barrel, closed; n=8, S=10; meander |
| b.61.1 | Avidin/streptavidin | Streptavidin-like barrel, closed; n=8, S=10; meander |
| b.68.6 | Calcium-dependent phosphotriesterase | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| b.45.1 | FMN-binding split barrel related to the ferredoxin reductase-like FAD-binding domain ! | Split barrel-like barrel; n=6, S=10; greek-key |
| 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 |
| b.68.4 | TolB, C-terminal domain | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| 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.20.1 | UBC-like | UBC-like alpha-beta(4)-alpha(3); core: meander beta-sheet plus one helix 2 |
| b.76.2 | Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain 11+ stranded sheet partly folded upon itself at the C-end ! | open-sided beta-meander single sheet formed by beta-hairpin repeats; exposed on both sides in the middle |
| d.81.3 | FwdE-like contains extra N-terminal and C-terminal structures ! | FwdE/GAPDH domain-like core: alpha-beta-alpha-beta(3); mixed sheet: 2134, strand 2 is parallel to strand 1 |
| 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 |
| 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.68.2 | Soluble quinoprotein glucose dehydrogenase | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| b.69.13 | Oligoxyloglucan reducing end-specific cellobiohydrolase duplication: # two beta-propeller domains are swapped with the N-terminal strands; similar domain arrangment to the Actin interacting protein 1 ( | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| 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 |
| 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 |
| b.84.3 | Duplicated hybrid motif half-barrel sheet of 8 strands sandwiched with two 3-stranded sheets ! | Barrel-sandwich hybrid sandwich of half-barrel shaped beta-sheets |
| 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 |
| c.1.13 | Malate synthase G | 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 |
| 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 |
| 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 |
| d.136.1 | Phospholipase D/nuclease | Phospholipase D/nuclease beta-alpha-beta-alpha-beta-alpha-beta(4)-alpha; mixed sheet: order 1765234 |
| b.101.1 | Ribonuclease domain of colicin E3 | Ribonuclease domain of colicin E3 twisted meander beta-sheet of 6 strands |
| d.298.1 | RelE-like Toxin component of plasmid stabilisation system ! | RelE-like beta-alpha(2)-beta(4), 2 layers; a/b, antiparallel beta-sheet; order 15432 |
| b.30.2 | Amine oxidase catalytic domain | Supersandwich sandwich; 18 strands in 2 sheets |
| b.61.4 | Quinohemoprotein amine dehydrogenase A chain, domain 3 | Streptavidin-like barrel, closed; n=8, S=10; meander |
| d.320.1 | YojJ-like | YojJ-like alpha-beta-X-beta-alpha-beta(2)-alpha-beta(3); 3 layers: a/b/a; 7-stranded mixed beta-sheet, order 2431567; strands 1 and 3 are parallel to each other |
| d.82.2 | Frataxin/Nqo15-like | N domain of copper amine oxidase-like alpha-beta(5)-alpha; 2 layers: alpha/beta; meander antiparallel sheet |
| b.61.3 | D-aminopeptidase, middle and C-terminal domains | Streptavidin-like barrel, closed; n=8, S=10; meander |
| b.177.1 | YmcC-like | YmcC-like 12-stranded meander beta-sheet, folded into a deformed beta-barrel; topological similarity to the LolA-like fold (scop_cf 89391) |
| b.119.1 | C-terminal autoproteolytic domain of nucleoporin nup98 | C-terminal autoproteolytic domain of nucleoporin nup98 multisheet protein with a mixture of beta-sandwich and beta-prism features |
| 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 |
| b.69.11 | Putative isomerase YbhE | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| d.17.7 | Putative dsDNA mimic elaborated with additional structures; some similarity to Uracil-DNA glycosylase (UGI) and Nuclease A (NuiA) inhibitors ! | Cystatin-like Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet |
| 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.35.1 | Heme-binding protein A (HasA) | Heme-binding protein A (HasA) beta-alpha-beta(6)-alpha(2); antiparallel sheet: order 165432 |
| d.17.6 | Pre-PUA domain this domain is found in association with the PUA domain in the C-terminal region of Archaeosine tRNA-guanine transglycosylase and related stand-alone proteins ! | Cystatin-like Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet |
| e.3.1 | beta-lactamase/transpeptidase-like | beta-lactamase/transpeptidase-like contains a cluster of helices and an alpha+beta sandwich |
| b.30.6 | V-region of surface antigen I/II (SA I/II, PAC) | Supersandwich sandwich; 18 strands in 2 sheets |
| b.106.1 | Phage tail proteins | Phage tail proteins core: barrel; n=6, S=10; greek-key; topologically similar to the FMN-binding split barrel |
| b.25.1 | Osmotin, thaumatin-like protein has two smaller insertion domains ! | Osmotin, thaumatin-like protein sandwich; 11 strands in 2 sheets |
| d.190.1 | Chorismate lyase-like | Chorismate lyase-like duplication of alpha(2)-beta(3) motif; antiparallel beta sheet, order 123654 |
| d.317.1 | YkuJ-like | YkuJ-like alpha-beta(4)-alpha; 2 layers a/b; antiparallel beta-sheet, order 1234 |
| d.96.1 | Tetrahydrobiopterin biosynthesis enzymes-like bind purine or pterin in topologically similar sites between subunits ! | T-fold beta(2)-alpha(2)-beta(2); 2 layers: alpha/beta; antiparallel sheet 1234 ! tunnel-shaped: its known members form wide oligomeric barrels different sizes |
| b.47.1 | Trypsin-like serine proteases | Trypsin-like serine proteases barrel, closed; n=6, S=8; greek-key ! duplication: consists of two domains of the same fold |
| d.108.1 | Acyl-CoA N-acyltransferases (Nat) | Acyl-CoA N-acyltransferases (Nat) 3 layers: a/b/a; contains mixed beta-sheet |
| b.61.8 | YdhA-like | Streptavidin-like barrel, closed; n=8, S=10; meander |
| 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 |
| b.169.1 | MFPT repeat-like | MFPT repeat-like consists of two similar pseudo barrel subdomains with structural similarity to a circularly permuted SAND domain (scop_fa 63764) |
| 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.88.1 | Mss4-like duplication: tandem repeat of two similar structural motifs ! | Mss4-like complex fold made of several coiled beta-sheets |
| d.290.1 | AF0104/ALDC/Ptd012-like characteristic metal ion (zinc)-binding motif in the putative active site ! | AF0104/ALDC/Ptd012-like duplication: consists of two similar beta-alpha-beta(4) motifs |
| b.176.1 | AttH-like | AttH-like duplication: two flattened beta-barrels of lipocalin-like topology are orthogonally packed with a pseudo twofold symmetry |
| b.35.2 | SacY-like RNA-binding domain | GroES-like contains barrel, partly opened; n*=4, S*=8; meander |
| b.68.11 | Kelch motif | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| d.316.1 | MK0786-like probable biological unit is a teramer; all subunit interfaces are provided by helices ! | MK0786-like alpha(2)-beta(4); 2 layers: a/b; antiparallel beta-sheet, order 1234 (meander) |
| d.296.1 | YktB/PF0168-like | YktB/PF0168-like alpha-beta(4)-alpha-beta(2)-alpha-beta-alpha; 2 layers, a/b; antiparallel beta-sheet, order: 1234756; half-barrel shape; topological similarity to the MotA C-terminal domain-like fold (scop_cf 69651) and the Secretion chaperone-like fold (scop_cf 69634) |
| b.42.1 | Cytokine | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| d.358.1 | YdfO-like | YdfO-like duplication: two alpha(2)-beta(3) motifs are related by pseudo twofold symmetry; single antiparrallel beta-sheet, order:321456 |
| d.369.1 | SMI1/KNR4-like | SMI1/KNR4-like alpha(4)-beta(4)-alpha; 3 layers: a/b/a; antiparallel beta-sheet, order 1234(meander) |
| 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] |
| b.42.5 | Actin-crosslinking proteins | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| d.219.1 | PP2C-like contain binuclear metal (Mn) centre ! | PP2C-like 4 layers: alpha/beta/beta/alpha; antiparallel beta sheets |
| b.1.28 | NEAT domain-like | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.67.1 | Tachylectin-2 | 5-bladed beta-propeller consists of five 4-stranded beta-sheet motifs; meander |
| d.221.1 | Nuclease A inhibitor (NuiA) some structural similarity to Uracil-DNA glycosylase inhibitor and putative dsDNA mimic HI1450 of the cystatin-like fold ! | Nuclease A inhibitor (NuiA) alpha-beta-alpha-beta-alpha(2)-beta(3); antiparallel beta-sheet; order: 15432 |
| 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 |
| b.8.1 | TRAF domain-like has a circularly permuted immunoglobulin-fold topology with extra strand ! | TRAF domain-like sandwich; 8 strands in 2 sheets; greek-key |
| 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 |
| g.79.1 | WRKY DNA-binding domain | WRKY DNA-binding domain zinc-bound 4-stranded meander beta-sheet, distinct from the beta-ribbon motifs |
| d.305.1 | NAP-like | NAP-like core: central meander 4-stranded beta-sheet (order: 1234) transversed by a C-terminal helix |
| d.17.3 | DsbC/DsbG N-terminal domain-like | Cystatin-like Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet |
| d.251.1 | Hypothetical protein YwqG | Hypothetical protein YwqG duplication: contains two similar beta-x-beta(4) motifs swapped with the first strands |
| d.82.3 | Hypothetical protein c14orf129, hspc210 | N domain of copper amine oxidase-like alpha-beta(5)-alpha; 2 layers: alpha/beta; meander antiparallel sheet |
| d.243.1 | Colicin D/E5 nuclease domain | Colicin D/E5 nuclease domain alpha(2)-beta(4)-alpha, 2 layers: alpha/beta, antiparallel beta sheet, meander |
| b.116.1 | Viral chemokine binding protein m3 | Viral chemokine binding protein m3 consists of two different beta-sandwich domains of partial topological similarity to immunoglobulin-like folds |
| d.13.1 | HIT-like | HIT-like alpha-beta(3)-alpha-beta(2); 3 layers: alpha/beta/alpha |
| d.62.1 | Pepsin inhibitor-3 | Pepsin inhibitor-3 duplication of beta(3)-alpha(2) motif: meander beta sheets form barrel-like structure |
| b.65.1 | Rap30/74 interaction domains | triple barrel dimer of two non-identical subunits; forms two similar barrels, n=8, S=10 each, that are fused together with the formation of third barrel, n=6, S=8 |
| d.198.3 | YjbR-like overall similar to the Type III secretory system chaperone subunits; different shape of the beta-sheet ! | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| 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 |
| f.4.4 | OMPT-like forms (10,12) barrel ! | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| e.5.1 | Heme-dependent catalase-like | Heme-dependent catalase-like contains an (8,10) beta-barrel and an all-alpha domain |
| d.167.1 | Peptide deformylase nickel-dependent enzyme ! | Peptide deformylase alpha-beta(5)-alpha; 3 layers: a/b/a; meander beta-sheet wraps around the C-terminal alpha-helix |
| d.1.1 | Microbial ribonucleases | Microbial ribonucleases single helix packs against antiparallel beta-sheet |
| b.78.1 | alpha-D-mannose-specific plant lectins | beta-Prism II consists of 3 4-stranded sheets; strands are perpendicular to the 3-fold axis ! duplication: consists of two domains of this fold |
| b.38.2 | YhbC-like, C-terminal domain | Sm-like fold core: barrel, open; n*=4, S*=8; meander; SH3-like topology |
| b.144.1 | Trimeric adhesin | Trimeric adhesin trimer; contains two different beta-prism-like domains connected by an linker subdomain of less regular structure |
| b.34.5 | Translation proteins SH3-like domain many known members contain KOW motif ! | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| d.249.1 | Hypothetical protein Ta1206 can be divided into an N-terminal, tetramerisation all-beta subdomain and a C-terminal alpha+beta subdomain related by a circular permutation to the Y-family DNA-polymerase 'fingers' subdomain ! | Hypothetical protein Ta1206 beta(4)-alpha-beta(2)-alpha(2); mixed, predominately antiparallel beta-sheet, order: 123465, strands 4 and 5 are parallel to each other |
| b.69.5 | RCC1/BLIP-II two families are clearly related but differ by the number of strands per blade ! | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.34.1 | C-terminal domain of transcriptional repressors the N-terminal domains of these repressors bind DNA ! | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| d.198.5 | YgaC/TfoX-N like overall similar to the Type III secretory system chaperone subunits; different shape of the beta-sheet | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| 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.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.129.9 | RalF, C-terminal domain contains a single copy of this fold decorated with additional structures ! | TBP-like beta-alpha-beta(4)-alpha |
| b.1.10 | Clathrin adaptor appendage domain contains an additional N-terminal strand ! | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| 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 |
| 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 |
| 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 |
| d.198.4 | YdhG-like some similarity to YjbR-like (scop_sf 136320) | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| b.92.1 | Composite domain of metallo-dependent hydrolases this domain is interrupted by the catalytic beta/alpha barrel domain ! | Composite domain of metallo-dependent hydrolases pseudobarrel; mixed sheet of 7 strand folded upon itself and "buckled" by two beta-turns |
| e.66.1 | Api92-like | Api92-like 2 domains; d1: [alpha+beta with similarity to ferredoxin-like fold]; d2: [6 helices, bundle, one buried central helix], inserted into d1 |
| 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 |
| d.17.4 | NTF2-like has a beta-alpha(2)-beta insertion after the main helix ! | Cystatin-like Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet |
| c.8.2 | LeuD/IlvD-like contains mixed beta-sheet barrel, closed n=7, S=10 ! | 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.38.1 | Thioesterase/thiol ester dehydrase-isomerase | Thioesterase/thiol ester dehydrase-isomerase core: beta-alpha-beta(4); 2 layers: alpha/beta |
| e.70.1 | MalF N-terminal region-like | MalF N-terminal region-like consists of 3 N-terminal transmembrane helices, an alpha+beta linker domain and a beta-barrel (n=7; S=8) with one overside loop |
| b.45.2 | PilZ domain-like | Split barrel-like barrel; n=6, S=10; greek-key |
| 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.370.1 | BTG domain-like | BTG domain-like alpha(2)-beta-alpha(2)-beta(3); four-helical bundle, capped at one end by an antiparallel beta-sheet, order:1234 |
| e.76.1 | Viral glycoprotein ectodomain-like | Viral glycoprotein ectodomain-like complex fold; contains three rigid, mostly-beta domains and an alpha-helical region, acting as a conformatiomal switch ("fusion stalk") |
| d.85.1 | RNA bacteriophage capsid protein | RNA bacteriophage capsid protein 6-standed beta-sheet followed with 2 helices; meander |
| a.119.1 | Lipoxigenase | Lipoxigenase multihelical ! large nearly all-alpha domain |
| b.48.1 | mu transposase, C-terminal domain | mu transposase, C-terminal domain barrel; n=6, S=8, greek-key |
| b.97.1 | Cytolysin/lectin some topological similarity to osmotin ! | Cytolysin/lectin sandwich, 10 strands in 2 sheets; |
| 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.88.1 | Glutaminase/Asparaginase | Glutaminase/Asparaginase consists of two non-similar alpha/beta domains, 3 layers (a/b/a) each ! Domain 1 has mixed beta-sheet of 6 strands, order 213456, strand 6 is antiparallel to the rest; left-handed crossover connection between strands 4 and 5 ! Domain 2 has parallel beta-sheet of 4 strands, order 1234 |
| 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 |
| b.36.1 | PDZ domain-like peptide-binding domain ! | PDZ domain-like contains barrel, partly opened; n*=4, S*=8; meander; capped by alpha-helix |
| 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] |
| b.131.1 | SPOC domain-like | SPOC domain-like barrel, closed; n=7, S=10; complex topology |
| 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) |
| d.260.1 | Suppressor of Fused, N-terminal domain | Suppressor of Fused, N-terminal domain unusual fold; bifurcated beta-sheet; left-handed beta-alpha-beta unit |
| 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 |
| 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 |
| b.93.1 | Epsilon subunit of F1F0-ATP synthase N-terminal domain | Epsilon subunit of F1F0-ATP synthase N-terminal domain pseudobarrel: sandwich of two sheets packed at a positive interstrand angle and interconnected with many short turns |
| b.42.3 | Agglutinin this superfamily is distinct from the ricin B-like lectin superfamily ! | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| b.149.1 | Beta-galactosidase LacA, domain 3 | Beta-galactosidase LacA, domain 3 sandwich; 8 strands in 2 sheets |
| d.81.2 | Serine metabolism enzymes domain contains extra C-terminal beta-hairpin ! | FwdE/GAPDH domain-like core: alpha-beta-alpha-beta(3); mixed sheet: 2134, strand 2 is parallel to strand 1 |
| b.84.2 | Rudiment single hybrid motif | Barrel-sandwich hybrid sandwich of half-barrel shaped beta-sheets |
| 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.47.1 | 39 kda initiator binding protein, IBP39, C-terminal domains | 39 kda initiator binding protein, IBP39, C-terminal domains 2 closely associated domains: (1) all-alpha, EF-hand like; (2) alpha+beta, Frataxin-like |
| d.127.1 | Creatinase/aminopeptidase | Creatinase/aminopeptidase duplication: composed of two very similar alpha+beta folds |
| 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 |
| 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.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 |
| b.42.4 | STI-like | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| 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) |
| f.4.1 | OMPA-like forms (8,10) barrel ! | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| b.46.1 | FMT C-terminal domain-like | FMT C-terminal domain-like barrel, open; n*=6, S*=10; greek-key |
| b.63.1 | Oncogene products duplication: N- and C-terminal halves are related by pseudo dyad ! | Oncogene products barrel, closed; n=8, S=10; one overside connection |
| f.7.1 | Lipovitellin-phosvitin complex; beta-sheet shell regions | Lipovitellin-phosvitin complex; beta-sheet shell regions contains several large open beta-sheets |
| b.34.11 | Prokaryotic SH3-related domain | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| 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 |
| b.34.3 | Myosin S1 fragment, N-terminal domain | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| b.150.1 | Putative glucosidase YicI, C-terminal domain | Putative glucosidase YicI, C-terminal domain sandwich; 10 strands in two sheets |
| b.42.2 | Ricin B-like lectins | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| d.129.8 | Rbstp2229 protein forms segment-swapped dimers further organized in hexamers ! | TBP-like beta-alpha-beta(4)-alpha |
| b.34.6 | Cell growth inhibitor/plasmid maintenance toxic component contains insert beta-sheet subdomain and 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.34.1 | DNA-binding domain of Mlu1-box binding protein MBP1 has some topological similarity to the "winged helix" DNA-binding domain, to B1 and B5 domains of PheRS-beta (1PYS CH B) and to methyl-CpG-binding domain ! | DNA-binding domain of Mlu1-box binding protein MBP1 beta(4)-alpha(2)-beta(2)-alpha; antiparallel sheet: order 123465 |
| b.159.1 | Allene oxide cyclase-like | AOC barrel-like barrel, closed; n=8, S=10; meander; mirrored (reversed) topology to the Spreptavidin-like and Lipocalin-like folds |
| e.13.1 | DNA primase core | DNA primase core 2 domains: (1) alpha+beta; (2) toprim alpha/beta |
| b.41.1 | PRC-barrel domain | PRC-barrel domain core: barrel, partly opened; n*=5, S*=8; meander |
| 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 |
| 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) |
| b.137.1 | Rof/RNase P subunit-like | Rof/RNase P subunit-like core: barrel, open; n*=4, S*=8; meander; SH3-like topology; some similarity to the Sm-like fold |
| g.41.7 | Aspartate carbamoyltransferase, Regulatory-chain, C-terminal domain | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| 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 |
| b.61.6 | YceI-like | Streptavidin-like barrel, closed; n=8, S=10; meander |
| d.217.1 | SAND domain-like | SAND domain-like core: three short helices packed against a barrel-like beta-sheet; some similarity to the SH3-like fold |
| d.371.1 | YehR-like | YehR-like beta(3)-alpha-beta(2)-alpha(3)-beta; 2 layers, a/b; antiparallel beta-sheet, order: 612354 |
| b.143.1 | NAC domain | NAC domain core: twisted 7-stranded beta-sheet (half-barrel) |
| b.34.17 | YccV-like contains extra C-terminal helix packed against barrel ! | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| b.34.9 | Tudor/PWWP/MBT | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| f.4.6 | Tsx-like channel forms (12,16) barrel ! | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| b.38.3 | GatD N-terminal domain-like | Sm-like fold core: barrel, open; n*=4, S*=8; meander; SH3-like topology |
| 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.289.1 | WWE domain | WWE domain beta(2)-alpha-beta(4); antiparallel folded beta-sheet (half-barrel), order 216543 |
| b.34.2 | SH3-domain | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| d.82.4 | GAS2 domain-like this superfamily may include the most C-terminal domain of IBP39 ( | N domain of copper amine oxidase-like alpha-beta(5)-alpha; 2 layers: alpha/beta; meander antiparallel sheet |
| 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) |
| d.275.1 | Hut operon positive regulatory protein HutP | Hut operon positive regulatory protein HutP alpha(2)-beta-alpha(2)-beta(3); 3 layers: a/b/a; antiparallel beta-sheet: order 1234 |
| d.82.1 | Copper amine oxidase, domain N | N domain of copper amine oxidase-like alpha-beta(5)-alpha; 2 layers: alpha/beta; meander antiparallel sheet |
| d.171.1 | Fibrinogen C-terminal domain-like | Fibrinogen C-terminal domain-like unusual fold |
| b.153.1 | PheT/TilS domain contains putative tRNA-binding structural motif ! | PheT/TilS domain core: 3 layers; contains beta-sandwich of unusual topology |
| b.35.1 | GroES-like | GroES-like contains barrel, partly opened; n*=4, S*=8; meander |
| b.42.6 | MIR domain | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| b.37.1 | N-terminal domains of the minor coat protein g3p | N-terminal domains of the minor coat protein g3p core: barrel, in some members open; n*=4, S*=8; meander |
| b.42.7 | DNA-binding protein LAG-1 (CSL) contains rudiment hairpin triplet lacking one hairpin ! | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| b.159.2 | SO1590-like | AOC barrel-like barrel, closed; n=8, S=10; meander; mirrored (reversed) topology to the Spreptavidin-like and Lipocalin-like folds |
| d.310.1 | VC0467-like | VC0467-like complex fold; contains bifurcated beta-sheet structure folded into pseudo barrel |
| c.153.1 | YerB-like | YerB-like 3 layers: b/b/a; central mixed beta-sheet of 9 strands, order 541329678; strands 3 and 7 are antiparallel to the rest; an unusual "over the other end" connection between strands 3 and 4 |
| d.13.2 | Rotavirus NSP2 fragment, C-terminal domain | HIT-like alpha-beta(3)-alpha-beta(2); 3 layers: alpha/beta/alpha |
| d.239.1 | GCM domain DNA-binding domain ! | GCM domain consists of two different alpha+beta subdomains; 2 zinc-binding sites |
| 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 |
| f.4.2 | Outer membrane phospholipase A (OMPLA) forms (12,16) barrel ! | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| b.39.1 | Ribosomal protein L14 | Ribosomal protein L14 barrel, closed; n=5, S=8, meander |
| b.34.4 | Electron transport accessory proteins | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| b.34.10 | Cap-Gly domain | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| d.147.1 | Methenyltetrahydromethanopterin cyclohydrolase | Methenyltetrahydromethanopterin cyclohydrolase consists of two alpha+beta subdomains |
| b.38.4 | Dom34/Pelota N-terminal domain-like | Sm-like fold core: barrel, open; n*=4, S*=8; meander; SH3-like topology |
| b.139.1 | Surface presentation of antigens (SPOA) | Surface presentation of antigens (SPOA) segment-swapped dimer forming two identical conjoint barrels (n=6, S=10) topologically similar to the FMN-binding split barrel |
| g.41.18 | YfgJ-like duplication: consists of two rubredoxin-like (sub)domains, interlocked together | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| b.158.1 | BH3618-like | BH3618-like barrel, closed; n=7, S=10; meander |
| d.332.1 | RGC domain-like | RGC domain-like consists of two beta-sheets and four helices eclosing a cental cavity |
| b.140.1 | Replicase NSP9 | Replicase NSP9 barrel; n=6, S=8, greek-key; similar to one trypsin-like protease barrel |
| b.34.19 | Mib/herc2 domain-like | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| f.47.1 | VP4 membrane interaction domain | VP4 membrane interaction domain 2 domains; d1: complexed all-beta fold; d2: coiled-coil (trimeric) helical region |
| b.1.7 | Actinoxanthin-like | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| d.82.5 | GK1464-like dimer; pseudo barrel; the true dimeric barrel formation requires swapping of the C-ternimal beta-alpha units ! | N domain of copper amine oxidase-like alpha-beta(5)-alpha; 2 layers: alpha/beta; meander antiparallel sheet |
| b.162.1 | At5g01610-like | At5g01610-like contains large meander beta-sheet bent into a scoop-like shape |
| e.53.1 | QueA-like | QueA-like 2 domains; d1 (1-64,174-335) [alpha/beta; 3 layers, a/b/a; mixed beta sheet of 9 strands, order: 219863457; strands 1, 5 and 8 are antiparallel to the rest]; d2 (65-142) [all-beta; barrel, closed (n=6, S=10); greek-key; topologically similar to the split barrel fold (scop_cf 50474) |
| 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 |
| b.42.8 | AbfB domain | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| e.54.1 | CbiD-like | CbiD-like 2 domains; (1) alpha+beta (res 1-192), a circularly permuted rS5 domain 2-like fold (scop_cf 54210); (2) alpha/beta with parallel beta-sheet of 4 strands, order 2134 |
| b.1.22 | ASF1-like contains extra C-terminal strand ! | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.2.1 | Diphtheria toxin, C-terminal domain | Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold |
| d.235.1 | FYSH domain | FYSH domain beta(2)-alpha(2)-beta(2)-alpha-beta; two layers: alpha/beta; antiparallel sheet: order 51234 |
| b.118.1 | FAS1 domain | FAS1 domain core: barrel, closed; n=7, S=12; meander |
| b.34.12 | BAH domain | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| b.152.1 | Flagellar hook protein flgE | Flagellar hook protein flgE consists of two different domains; d1: [complex fold made of bifurcated beta-sheets]; d2 (inserted into d1): [beta-sandwich; 8 strands in 2 sheets] |
| b.9.1 | Neurophysin II duplication: composed of two structural repeats ! | Neurophysin II sandwich; 8 strands in 2 sheets; meander |
| 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 |
| f.9.1 | Perfringolysin | Perfringolysin 2 domains: (1) alpha+beta; (2) all-beta, similar to the CalB domain fold but the two last strands are transposed |
| b.34.20 | YorP-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.22.1 | GFP-like | GFP-like beta-sheet folds into a barrel (n=11, S=14) around the central helix |
| e.18.1 | HydB/Nqo4-like | HydB/Nqo4-like 3 domains: (1) all-alpha; (2&3) alpha+beta |
| b.173.1 | NifT/FixU-like | NifT/FixU barrel-like barrel, closed, n=6, S=10; meander |
| 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) |
| b.34.15 | Hypothetical protein YfhH contains extra N-terminal all-alpha subdomain ! | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| b.34.16 | Kinase-associated protein B-like contains extra C-terminal alpha-hairpin ! | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| f.6.1 | Leukocidin-like | Leukocidin-like subunit fold contains beta-sandwich of Ig-like (grerk-key) topology and a beta-ribbon arm that forms an oligomeric transmembrane barrel |
| b.100.1 | Sortase | Sortase barrel, closed; n=8, S=10; mixed sheet; two overside connections |
| d.297.1 | WGR domain-like | WGR domain-like beta(4)-alpha-X-beta; 2 layers, a/b; antiparallel beta-sheet, order 51234; the beta-hairpin insetrion in strand 1 results in the formation of a beta-triangle structure |
| b.38.5 | TrmB C-terminal domain-like sugar-binding domain; permuted OB-fold? | Sm-like fold core: barrel, open; n*=4, S*=8; meander; SH3-like topology |
| 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 |
| 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 |
| 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)] |
| d.15.9 | Glutamine synthetase, N-terminal domain | beta-Grasp (ubiquitin-like) core: beta(2)-alpha-beta(2); mixed beta-sheet 2143 |
| d.172.1 | gp120 core | gp120 core unusual fold |
| e.32.1 | Phase 1 flagellin | Phase 1 flagellin 3 domains: (1) alpha-helical bundle; (2&3) complex all-beta folds |
| b.1.19 | Antigen MPT63/MPB63 (immunoprotective extracellular protein) | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| d.309.1 | AMMECR1-like | AMMECR1-like duplication; contains two beta(2)-alpha-beta(2) structural repeats, swapped with C-terminal strands; extra N-terminal helix and C-terminal strand |
| b.34.21 | Plus3-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.129.5 | MoaD-related protein, C-terminal domain contains a single copy of this fold ! | TBP-like beta-alpha-beta(4)-alpha |
| e.45.1 | Antivirulence factor | Antivirulence factor contains a helical bundle with a buried helix and an alpha+beta insert domain |
| c.51.4 | ITPase-like formerly Maf/Ham1; elaborated with additional structures inserted in the common fold ! | Anticodon-binding domain-like 3 layers: a/b/a; mixed beta-sheet of five strands, order 21345; strand 4 is antiparallel to the rest |
| d.103.1 | CytB endotoxin-like | CytB endotoxin-like core: beta-alpha(2)-beta-alpha(2)-beta(4); 3 layers: a/b/a |
| d.176.1 | Oxidoreductase molybdopterin-binding domain | Oxidoreductase molybdopterin-binding domain unusual fold; contains 3 layers of beta-sheet structure and a beta-grasp like 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 |
| e.43.1 | Subunits of heterodimeric actin filament capping protein Capz | Subunits of heterodimeric actin filament capping protein Capz 3 domains: (1) protozoan pheromone-like alpha-helical bundle; (2) rubredoxin-like domain lacking metal-binding site; (3) alpha+beta heterodimerisation domain: alpha-beta(5)-alpha |
| 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 |
| 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 |
| f.4.5 | Autotransporter forms (12,14) barrel; contains a long alpha-helix running along the barrel axis ! | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| f.5.1 | Outer membrane efflux proteins (OEP) | Outer membrane efflux proteins (OEP) subunit fold contains tandem repeat of alpha-beta hairpin-alpha(2) motif ! trimeric fold contains barrel (n=12, S=18) formed by beta-hairpins, two from each subunit, and a bundle of helices with a channel running through it |
| f.8.1 | Aerolisin/ETX pore-forming domain | Aerolisin/ETX pore-forming domain 3 domains: (1) alpha+beta; (2&3) all-beta |