| SCOP superfamily ID |
superfamiily description |
corresponding fold description |
| b.82.2 | Clavaminate synthase-like Iron and ketoglutarate-dependent enzymes; elaborated version of this common fold ! | 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.93.1 | SH2 domain | SH2-like 3 layers: a/b/a; antiparallel beta-sheet of 5 strands is flaked by two helices |
| 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.68.2 | EPT/RTPC-like | IF3-like beta-alpha-beta-alpha-beta(2); 2 layers; mixed sheet 1243, strand 4 is antiparallel to the rest |
| 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.186.1 | Head-to-tail joining protein W, gpW | gpW/XkdW-like alpha-beta(2)-alpha; antiparallel hairpin |
| 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 |
| 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 |
| 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 |
| d.26.1 | FKBP-like | FKBP-like core: beta(2)-alpha-beta(2); antiparallel beta-sheet |
| c.66.1 | S-adenosyl-L-methionine-dependent methyltransferases | S-adenosyl-L-methionine-dependent methyltransferases core: 3 layers, a/b/a; mixed beta-sheet of 7 strands, order 3214576; strand 7 is antiparallel to the rest |
| c.84.1 | Phosphoglucomutase, first 3 domains | Phosphoglucomutase, first 3 domains consists of three similar domains with 3 layers (a/b/a) each; duplication ! core: mixed beta-sheet of 4 strands, order 2134, strand 4 is antiparallel to the rest |
| d.147.1 | Methenyltetrahydromethanopterin cyclohydrolase | Methenyltetrahydromethanopterin cyclohydrolase consists of two alpha+beta subdomains |
| 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) |
| 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 |
| 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 |
| b.7.2 | Periplasmic chaperone C-domain | C2 domain-like sandwich; 8 strands in 2 sheets; greek-key |
| g.10.1 | Hairpin loop containing domain-like the middle part is structurally similar to some knottins and defensins but differs in the disulfide pattern ! | Hairpin loop containing domain-like alpha+beta fold with two crossing loops |
| 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 |
| d.122.1 | ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase 8-stranded mixed beta-sheet; 2 layers: alpha/beta |
| c.27.1 | Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain | Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain 3 layers: a/b/a; parallel beta-sheet of 5 strands, order 32145; Rossmann-like |
| d.229.1 | MesJ substrate recognition domain-like | MesJ substrate recognition domain-like beta-alpha(2)-beta(3); 2 layers: a/b; antiparallel beta-sheet, order:1432 |
| d.174.1 | Nitric oxide (NO) synthase oxygenase domain | Nitric oxide (NO) synthase oxygenase domain unusual fold |
| 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 |
| 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.273.1 | YjbQ-like | YjbQ-like beta(2)-alpha-beta(2)-alpha(2)-beta(3); contains a beta-sandwich: 7 strands in 2 sheets; trimerizes with orthogonally packed beta-sheets |
| d.110.6 | Sensory domain-like alpha(2)-beta(2)-alpha(2)-beta(3); 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.68.4 | YhbY-like | IF3-like beta-alpha-beta-alpha-beta(2); 2 layers; mixed sheet 1243, strand 4 is antiparallel to the rest |
| d.104.1 | Class II aaRS and biotin synthetases | Class II aaRS and biotin synthetases contains large mixed beta-sheet |
| d.53.1 | Ribosomal protein S3 C-terminal domain | Ribosomal protein S3 C-terminal domain alpha(2)-beta(4); 2 layers: alpha/beta; antiparallel beta-sheet: order 2143 |
| c.72.3 | CoaB-like combination of the Rossmann-like and Ribokinase-like topologies; mixed beta-sheet of 8 strands, order 32145678, strand 7 is antiparallel to the rest ! | 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 |
| 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.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 |
| d.151.1 | DNase I-like | DNase I-like contains beta-sandwich; duplication of alpha+beta motif |
| d.68.7 | R3H domain possibly lacks the N-terminal strand of the common fold ! | IF3-like beta-alpha-beta-alpha-beta(2); 2 layers; mixed sheet 1243, strand 4 is antiparallel to the rest |
| 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.160.1 | Carbon-nitrogen hydrolase | Carbon-nitrogen hydrolase 4 layers: alpha/beta/beta/alpha; mixed beta sheets; contains duplication |
| b.110.1 | Cloacin translocation domain | Cloacin translocation domain complex fold made of several coiled beta-sheets |
| 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.289.1 | WWE domain | WWE domain beta(2)-alpha-beta(4); antiparallel folded beta-sheet (half-barrel), order 216543 |
| d.218.1 | Nucleotidyltransferase | Nucleotidyltransferase core: alpha-beta-turn-beta-X-beta-(alpha); mixed beta-sheet, order of core strands: 123 |
| d.18.1 | ssDNA-binding transcriptional regulator domain | ssDNA-binding transcriptional regulator domain helix-swapped dimer of beta(4)-alpha motifs |
| 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 |
| e.3.1 | beta-lactamase/transpeptidase-like | beta-lactamase/transpeptidase-like contains a cluster of helices and an alpha+beta sandwich |
| d.162.1 | LDH C-terminal domain-like | LDH C-terminal domain-like unusual fold, defines family |
| 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 |
| 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.140.1 | Ribosomal protein S8 | Ribosomal protein S8 consists of 2 different alpha+beta subdomains arranged in a 4-layer structure: b/a/b/a |
| c.118.1 | GckA/TtuD-like | GckA/TtuD-like consists of two non-similar domains ! Domain 1 has parallel sheet of 6 strands, order 321456, Rossmann-like topology ! Domain 2 has mixed sheet of 6 strands, order 126345; strands 5 and 6 are antiparallel to the rest; some similarity to CbiF Domain 2 |
| 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 |
| c.1.16 | Bacterial luciferase-like consists of clearly related families of somewhat different folds ! | 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.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 |
| 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 |
| 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.58.46 | eEF1-gamma domain elaborated with additional structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.127.1 | Creatinase/aminopeptidase | Creatinase/aminopeptidase duplication: composed of two very similar alpha+beta folds |
| 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 |
| c.73.1 | Carbamate kinase-like the sheet topology is similar to those of undecaprenyl diphosphate synthase and the N-terminal domain of phosphoglycerate kinase ! | Carbamate kinase-like 3 layers: a/b/a; mixed (mainly parallel) beta-sheet of 8 strands, order 34215786; strand 8 is antiparallel to the rest |
| d.215.1 | Smc hinge domain | Smc hinge domain consists of 2 different alpha+beta subdomains; forms subdomain-swapped dimers |
| 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.15.6 | Superantigen toxins, C-terminal domain | beta-Grasp (ubiquitin-like) core: beta(2)-alpha-beta(2); mixed beta-sheet 2143 |
| 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.79.2 | Tubulin C-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 |
| d.61.1 | LigT-like | LigT-like duplication of beta-alpha-beta-alpha-beta motif: antiparallel beta sheet forms barrel (n=6, S=8) similar to the barrel of prokaryotic DNA topoisomerases I and III |
| 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.166.1 | ADP-ribosylation | ADP-ribosylation unusual fold |
| 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 |
| b.122.1 | PUA domain-like | PUA domain-like pseudobarrel; mixed folded sheet of 5 strands; order 13452; strand 1 and 3 are parallel to each other |
| 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.1.1 | Microbial ribonucleases | Microbial ribonucleases single helix packs against antiparallel beta-sheet |
| c.93.1 | Periplasmic binding protein-like I Similar in architecture to the superfamily II but partly differs in topology ! | Periplasmic binding protein-like I consists of two similar intertwined domain with 3 layers (a/b/a) each: duplication ! parallel beta-sheet of 6 strands, order 213456 |
| d.58.32 | FAD-linked oxidases, C-terminal domain duplication: contains two subdomains of this fold ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| 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 |
| c.95.1 | Thiolase-like | Thiolase-like consists of two similar domains related by pseudo dyad; duplication ! 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 32451; strand 5 is antiparallel to the rest |
| 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.104.1 | Cytochrome P450 | Cytochrome P450 multihelical |
| 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 |
| d.264.1 | Prim-pol domain | Prim-pol domain consists of two alpha+beta domains |
| 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 |
| b.61.4 | Quinohemoprotein amine dehydrogenase A chain, domain 3 | Streptavidin-like barrel, closed; n=8, S=10; meander |
| d.24.1 | Pili subunits bacterial filament proteins ! | Pili subunits contains very long N-terminal helix, which end is packed against beta-sheet |
| 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 |
| d.110.3 | PYP-like sensor domain (PAS domain) alpha-beta(2)-alpha(2)-beta(3) ! | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| c.100.1 | Thiamin pyrophosphokinase, catalytic domain | Thiamin pyrophosphokinase, catalytic domain 3 layers: a/b/a; parallel beta-sheet of 6 strands, order 432156 |
| d.73.1 | RuBisCO, small subunit | RuBisCO, small subunit alpha-beta(2)-alpha-beta(2); 2 layers, alpha/beta |
| b.103.1 | MoeA N-terminal region -like | MoeA N-terminal region -like complex fold made of bifurcated and coiled b-sheets |
| a.234.1 | Hypothetical protein MPN330 | Hypothetical protein MPN330 multihelical; consists of three different 4-helical bundles |
| 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.318.1 | SARS receptor-binding domain-like | SARS receptor-binding domain-like core: 3 layers, a/b/a; antiparallel beta-sheet of 5 strands, order 13542 |
| d.68.3 | SirA-like | IF3-like beta-alpha-beta-alpha-beta(2); 2 layers; mixed sheet 1243, strand 4 is antiparallel to the rest |
| d.75.2 | DNA repair protein MutS, domain I | MutS N-terminal domain-like beta(2)-alpha-beta(2)-alpha-beta(2); 2 layers, alpha/beta |
| d.129.8 | Rbstp2229 protein forms segment-swapped dimers further organized in hexamers ! | TBP-like beta-alpha-beta(4)-alpha |
| b.46.1 | FMT C-terminal domain-like | FMT C-terminal domain-like barrel, open; n*=6, S*=10; greek-key |
| 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.1.14 | RuBisCo, C-terminal domain | 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 |
| c.51.1 | Class II aaRS ABD-related | 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.106.1 | SCP-like | SCP-like alpha-beta(3)-(crossover)-beta-(alpha)-beta; 3 layers: a/b/a; antiparallel beta-sheet of 5 strands; order: 32145 |
| 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.152.1 | Aldehyde ferredoxin oxidoreductase, N-terminal domain | Aldehyde ferredoxin oxidoreductase, N-terminal domain contains sandwich; duplication of alpha+beta motif with single mixed sheet ! motif: beta(2)-alpha-beta(3)-alpha-beta; strand order 216345, strands 1 and 6 are parallel |
| 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.8.7 | RraA-like structural similarity and possible distant homology to the phosphohistidine domain of pyruvate phosphate dikinase ! | 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 |
| 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 |
| e.1.1 | Serpins | Serpins contains a cluster of helices and a beta-sandwich |
| 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.19.1 | Viral protein domain forms homotrimers ! | Viral protein domain sandwich; 9 strands in 2 sheets; jelly-roll; form trimers |
| 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 |
| c.53.1 | Resolvase-like | Resolvase-like Core: 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 21345; strand 5 is antiparallel to the rest |
| 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.117.1 | Thymidylate synthase/dCMP hydroxymethylase | Thymidylate synthase/dCMP hydroxymethylase contains large mixed beta-sheet |
| b.163.1 | Bacteriophage trimeric proteins domain found in phage proteins that form trimers, but is not involved in the trimerisation ! | Pseudo beta-prism beta-sandwich with one regular beta-sheet and the other beta-sheet bent in the middle with a set of aligned beta-bulges |
| 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 |
| b.62.1 | Cyclophilin-like | Cyclophilin-like barrel, closed; n=8, S=10; complex topology |
| d.108.1 | Acyl-CoA N-acyltransferases (Nat) | Acyl-CoA N-acyltransferases (Nat) 3 layers: a/b/a; contains mixed beta-sheet |
| d.98.1 | beta-lactamase-inhibitor protein, BLIP | BLIP-like alpha(2)-beta(4); 2 layers: alpha/beta |
| b.82.7 | Calcium ATPase, transduction domain A a distorted variant of double-helix ! | 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.99.1 | Ribosomal protein L9 C-domain | Ribosomal protein L9 C-domain alpha-beta-alpha(2)-beta(2); 2 layers: alpha/beta |
| 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.84.2 | Rudiment single hybrid motif | Barrel-sandwich hybrid sandwich of half-barrel shaped beta-sheets |
| 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 |
| 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.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 |
| e.50.1 | AF1104-like | AF1104-like 2 domains; d1: [all-alpha; 3-helical bundle, similar to the immunoglobulin/albumin-binding domain-like fold (scop_cf 46996)]; d2: [alpha/beta; 3 layers, a/b/a; 6-stranded mixed beta-sheet, order: 321456, strand 6 is antiparallel to the rest] |
| 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.172.1 | gp120 core | gp120 core unusual fold |
| 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.68.1 | Translation initiation factor IF3, C-terminal domain | IF3-like beta-alpha-beta-alpha-beta(2); 2 layers; mixed sheet 1243, strand 4 is antiparallel to the rest |
| d.118.1 | N-acetylmuramoyl-L-alanine amidase-like | N-acetylmuramoyl-L-alanine amidase-like contains mixed beta-sheet |
| d.361.1 | PB2 C-terminal domain-like | PB2 C-terminal domain-like alpha-beta-alpha-X-alpha-beta(2); 3 layers, a/b/a; antiparallel beta-sheet, order 132; connection between helices 2 and 3 runs over the edge of the beta-sheet |
| 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.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.255.1 | Tombusvirus P19 core protein, VP19 | Tombusvirus P19 core protein, VP19 beta(2)-alpha-beta(2)-alpha; 2 layers: alpha/beta; antiparallel sheet: order 2134 |
| c.7.1 | PFL-like glycyl radical enzymes duplication: the N- and C-terminal halves have similar topologies ! | PFL-like glycyl radical enzymes contains: barrel, closed; n=10, S=10; accommodates a hairpin loop inside the barrel |
| 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.188.1 | Prokaryotic ribosomal protein L17 some topological similarity to ribosomal protein L22 ! | Prokaryotic ribosomal protein L17 alpha-beta-alpha(3)-beta(2); 2 layers: alpha/beta; |
| c.53.2 | beta-carbonic anhydrase, cab | Resolvase-like Core: 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 21345; strand 5 is antiparallel to the rest |
| c.51.3 | B12-dependent dehydatase associated subunit | Anticodon-binding domain-like 3 layers: a/b/a; mixed beta-sheet of five strands, order 21345; strand 4 is antiparallel to the rest |
| c.49.1 | PK C-terminal domain-like | Pyruvate kinase C-terminal domain-like 3 layers: a/b/a; mixed beta-sheet of 5 strands, order 32145, strand 5 is antiparallel to the rest |
| d.88.1 | SRF-like | SRF-like alpha-beta(2)-alpha; dimer; 3 layers a/b/a; antiparallel beta-sheet |
| 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 |
| b.118.1 | FAS1 domain | FAS1 domain core: barrel, closed; n=7, S=12; meander |
| 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.198.2 | Arp2/3 complex subunits | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| 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 |
| d.58.55 | DOPA-like probable biological unit is homodimer; the extra C-terminal strand, adjacent and antiparallel to strand 4, contributes to the dimerisation interface ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| 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.38.1 | Thioesterase/thiol ester dehydrase-isomerase | Thioesterase/thiol ester dehydrase-isomerase core: beta-alpha-beta(4); 2 layers: alpha/beta |
| 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) |
| d.261.1 | Hypothetical protein PH1602 | Hypothetical protein PH1602 complex alpha+beta fold; contains a region of similarity to the ferredoxin-like fold |
| 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 |
| b.111.1 | Small protein B (SmpB) | Small protein B (SmpB) barrel, closed; n=6, S=8, greek-key, partial similarity to the OB-fold |
| d.165.1 | Ribosome inactivating proteins (RIP) | Ribosome inactivating proteins (RIP) contains mixed beta-sheet |
| 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 |
| c.71.1 | Dihydrofolate reductase-like | Dihydrofolate reductase-like 3 layers: a/b/a; mixed beta-sheet of 8 strands, order 34251687; strand 8 is antiparallel to the rest |
| 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.169.1 | C-type lectin-like | C-type lectin-like unusual fold |
| g.81.1 | HSP33 redox switch-like | HSP33 redox switch-like alpha+beta zinc-binding domain; alpha(2)-beta(2)-alpha |
| 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.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.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.230.6 | YdgH-like extra N-terminal structures: short strand and short helix; topological similarity to the YbjQ-like superfamily | Dodecin subunit-like beta-alpha-beta(2); 2 layers: alpha/beta; antiparallel beta-sheet: order 132 |
| d.131.1 | DNA clamp | DNA clamp contains two helices and two beta sheets ! duplication: fold has internal pseudo two-fold symmetry |
| d.94.1 | HPr-like | HPr-like beta-alpha-beta(2)-alpha-beta-alpha; 2 layers: a/b; antiparallel sheet 1423 |
| 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.43.2 | FucI/AraA C-terminal domain-like | Reductase/isomerase/elongation factor common domain barrel, closed; n=6, S=10; greek-key |
| 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; |
| c.67.2 | PhnH-like single domain protein of similar topology to the core domain of PLP-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 |
| d.13.1 | HIT-like | HIT-like alpha-beta(3)-alpha-beta(2); 3 layers: alpha/beta/alpha |
| c.150.1 | EreA/ChaN-like there are four conserved residues in the putative active site: two His and two Glu | EreA/ChaN-like Core: 3 layers: a/b/a; parallel beta-sheet of 5 strands, order:51423; |
| d.70.1 | Yeast killer toxins | Yeast killer toxins beta-alpha-beta(2)-alpha-beta(2); 2 layers, alpha/beta; left-handed crossover connection |
| 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 |
| 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.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 |
| d.58.2 | Aspartate carbamoyltransferase, Regulatory-chain, N-terminal domain | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.317.1 | YkuJ-like | YkuJ-like alpha-beta(4)-alpha; 2 layers a/b; antiparallel beta-sheet, order 1234 |
| d.5.1 | RNase A-like can be classified as disulfide-rich ! | RNase A-like contains long curved beta-sheet and 3 helices |
| c.131.1 | Peptidyl-tRNA hydrolase II | Peptidyl-tRNA hydrolase II 3 layers: a/b/a; mixed beta-sheet of 4 strands, order 2143, strand 4 is antiparallel to the rest |
| e.72.1 | SSO1389-like | SSO1389-like 2 domains; d1: [alpha/beta, central parallel beta-sheet of 6 strands, order 321456, Rossmann-like]; d2: [alpha+beta, cluster of helices and a small 4-stranded beta-sheet] |
| d.79.3 | L30e-like | Bacillus chorismate mutase-like core: beta-alpha-beta-alpha-beta(2); mixed beta-sheet: order: 1423, strand 4 is antiparallel to the rest |
| 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) |
| c.76.1 | Alkaline phosphatase-like | Alkaline phosphatase-like core:3 layers: a/b/a; mixed beta-sheet of 8 strands, order 43516728, strand 7 is antiparallel to the rest |
| d.68.6 | AlbA-like | IF3-like beta-alpha-beta-alpha-beta(2); 2 layers; mixed sheet 1243, strand 4 is antiparallel to the rest |
| e.22.1 | Dehydroquinate synthase-like | Dehydroquinate synthase-like 2 domains: (1) alpha/beta of a Rossmann-fold topology, binds NAD (2) multihelical array |
| b.120.1 | Tp47 lipoprotein, N-terminal domain | Tp47 lipoprotein, N-terminal domain complex fold; consists of two intertwined subdomains |
| 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.171.1 | Fibrinogen C-terminal domain-like | Fibrinogen C-terminal domain-like unusual fold |
| d.114.1 | 5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain | 5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain core: alpha-beta(2)-alpha-beta(2)-alpha-beta; 3 layers; mixed sheet: order 31425 |
| b.107.1 | Urease metallochaperone UreE, N-terminal domain | Urease metallochaperone UreE, N-terminal domain barrel, closed; n=6, S=8; a crossover loop topology |
| a.39.4 | Hypothetical protein MTH865 | EF Hand-like core: 4 helices; array of 2 hairpins, opened |
| b.2.6 | Cytochrome f, large domain | Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold |
| d.135.1 | The spindle assembly checkpoint protein mad2 N- and C-termini undergo large conformational rearrangement upon ligand binding ! | The spindle assembly checkpoint protein mad2 core: alpha(2)-beta(2)-alpha-beta; mixed sheet: order 213 |
| b.69.3 | Nitrous oxide reductase, N-terminal domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| c.17.1 | Caspase-like mature protein may be composed of two chains folded in a single domain ! | Caspase-like 3 layers, a/b/a; core: mixed beta-sheet of 6 strands, order 213456, strand 6 is antiparallel to the rest |
| 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 |
| b.44.2 | Aminomethyltransferase beta-barrel domain | Elongation factor/aminomethyltransferase common domain barrel, closed; n=6, S=10; greek-key |
| c.133.1 | RbsD-like | RbsD-like 3 layers: a/b/a; mixed beta-sheet of 6 strands, order 251634; strand 6 is antiparallel to the rest |
| d.183.1 | Major capsid protein gp5 possibly related to the hypothetical protein PF0899 superfamily ( | Major capsid protein gp5 unusual fold; contains PF0899-like core, decorated with additional structure |
| 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.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 |
| b.40.11 | TM0957-like extra N-terminal region and large insertion after strand 3 together form an alpha-helical subdomain ! | OB-fold barrel, closed or partly opened n=5, S=10 or S=8; greek-key |
| d.193.1 | Hsp33 domain | Hsp33 domain 3 layers: beta/alpha/beta; buried helix |
| 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 |
| a.111.1 | Acid phosphatase/Vanadium-dependent haloperoxidase | Acid phosphatase/Vanadium-dependent haloperoxidase multihelical; core: 5-helical bundle; binds cofactor at the beginning of third helix |
| 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 |
| b.77.2 | delta-Endotoxin (insectocide), middle domain | beta-Prism I consists of 3 4-stranded sheets; strands are parallel to the 3-fold axis ! duplication: has internal pseudo threefold symmetry |
| b.170.1 | WSSV envelope protein-like | WSSV envelope protein-like beta-sandwich; 9 strands in 2 sheets; greek-key |
| d.306.1 | YefM-like | YefM-like core: beta-alpha(2)-beta(2)-alpha; mixed beta-sheet, order:123, strands 1 and 2 are parallel; forms compact dimer with a single beta-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 |
| e.11.1 | Type II DNA topoisomerase | Type II DNA topoisomerase 4 domains: (1) toprim alpha/beta; (2) "winged helix"-like; (3) alpha+beta; (4) all-alpha |
| d.76.1 | GYF domain | GYF/BRK domain-like beta(2)-alpha-beta(2)-alpha; 2 layers, alpha/beta |
| b.100.1 | Sortase | Sortase barrel, closed; n=8, S=10; mixed sheet; two overside connections |
| b.54.1 | Core binding factor beta, CBF | Core binding factor beta, CBF barrel, closed; n=6, S=10; meander; capped at both ends by alpha-helices |
| d.294.1 | EndoU-like similarity to the RNase A-like superfamily ( | EndoU-like comprises several helices and two three-stranded antiparallel beta-sheets; similar architecture to the RNase A-like fold (scop_cf 54075) |
| d.68.5 | C-terminal domain of ProRS contains a metal (zinc)-binding site ! | IF3-like beta-alpha-beta-alpha-beta(2); 2 layers; mixed sheet 1243, strand 4 is antiparallel to the rest |
| d.37.1 | CBS-domain pair | CBS-domain pair duplication: tandem repeat of two beta-X-beta-alpha-beta(2)-alpha motifs of similar sequences; 4 layers: a/b/b/a |
| d.373.1 | gpW/gp25-like Contains phage tail lysozyme | gpW/gp25-like alpha(2)-beta(3); similar to one structural repeat of the Creatinase/aminopeptidase family and the C-terminal subdomain of PanC |
| d.22.1 | GFP-like | GFP-like beta-sheet folds into a barrel (n=11, S=14) around the central helix |
| 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 |
| 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 |
| 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 |
| 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] |
| 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.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.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.237.1 | Hypothetical protein YjiA, C-terminal domain | Hypothetical protein YjiA, C-terminal domain beta-alpha-beta(4)-alpha; 2 layers: a/b; antiparallel sheet 15234; topological similarity to the HPr-like fold |
| c.19.1 | FabD/lysophospholipase-like | FabD/lysophospholipase-like core: 3 layers, a/b/a; mixed beta-sheet of 6 strands, order 432156; strand 4 is antiparallel to the rest |
| 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 |
| b.40.9 | Heme chaperone CcmE | OB-fold barrel, closed or partly opened n=5, S=10 or S=8; greek-key |
| 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.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 |
| e.24.1 | Ribosomal protein L1 | Ribosomal protein L1 2 domains: (1) alpha+beta; (2) alpha/beta (interrupts domain 1) |
| 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) |
| 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.68.8 | SMR domain-like | IF3-like beta-alpha-beta-alpha-beta(2); 2 layers; mixed sheet 1243, strand 4 is antiparallel to the rest |
| d.190.1 | Chorismate lyase-like | Chorismate lyase-like duplication of alpha(2)-beta(3) motif; antiparallel beta sheet, order 123654 |
| b.128.1 | Hypothetical protein YojF | Hypothetical protein YojF pseudobarrel; capped at one end by an alpha-helix |
| 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 |
| a.8.3 | Families 57/38 glycoside transferase middle domain | immunoglobulin/albumin-binding domain-like 3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold |
| d.377.1 | Rv2827c C-terminal domain-like | Rv2827c C-terminal domain-like multihelical array flanked by two three-stranded mixed beta-sheets |
| e.42.1 | L-A virus major coat protein | L-A virus major coat protein large protein without apparent domain division |
| 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 |
| e.2.1 | Replication terminator protein (Tus) | Replication terminator protein (Tus) contains a cluster of helices and a beta-sandwich |
| d.247.1 | Chromosomal protein MC1 | Chromosomal protein MC1 beta(2)-alpha-beta(3); 2 layers: alpha/beta |
| 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.134.1 | LmbE-like | LmbE-like 3 layers, a/b/a; mixed beta-sheet of 7 strands, order 3214576; strand 7 is antiparallel to the rest; topological similarity to SAM-dependent methyltransferases |
| d.365.1 | Ava3019-like | Ava3019-like alpha(2)-beta-alpha-beta(4); 2 layers, a/b; antiparallel beta-sheet, order: 32145; similarity to the insert domain of Glucose 6-phosphate dehydrogenase-like family (sop_fa 55376) |
| d.252.1 | CheC-like | CheC-like duplication: tandem repeat of two intertwined alpha-beta-(X)-beta(2) motifs |
| 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 |
| 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.56.1 | YaeB-like | YaeB-like 2 domains; d1: [beta-barrel (n=6, S=10), similar to the Reductase/isomerase/elongation factor common domain fold (scop_cf 50412), provides homodimerisation interface]; d2: [alpha+beta (disordered)] |
| 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.58.29 | Nucleotide cyclase common fold is elaborated with additional secondary structures ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| c.51.5 | CinA-like | Anticodon-binding domain-like 3 layers: a/b/a; mixed beta-sheet of five strands, order 21345; strand 4 is antiparallel to the rest |
| c.140.1 | TTHA0583/YokD-like | TTHA0583/YokD-like 3 layers: a/b/a; mixed beta-sheet of 8 strands, order 78612354; strands 3, 4 and 8 are antiparallel to the rest |
| d.225.1 | Multidrug efflux transporter AcrB TolC docking domain; DN and DC subdomains duplication: the N- and C-terminal halves of the whole proteins are structurally similar ! | Multidrug efflux transporter AcrB TolC docking domain; DN and DC subdomains Intertwined pseudo hexamer of an alpha+beta motif |
| f.4.3 | Porins | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| 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.346.1 | SARS Nsp1-like | SARS Nsp1-like complex alpha+beta fold; contains mixed beta-sheet barrel, n=6, S=10 |
| 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) |
| e.18.1 | HydB/Nqo4-like | HydB/Nqo4-like 3 domains: (1) all-alpha; (2&3) 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.89.1 | Phosphofructokinase | Phosphofructokinase consists of two non-similar domains, 3 layers (a/b/a) each ! Domain 1 has mixed sheet of 7 strands, order 3214567; strands 3 & 7 are antiparallel to the rest ! Domain 2 has parallel sheet of 4 strands, order 2314 |
| 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 |
| g.23.1 | TB module/8-cys domain | TB module/8-cys domain disulfide-rich; alpha+beta |
| d.8.1 | Urease, gamma-subunit | Urease, gamma-subunit alpha(3)-beta(2); antiparallel hairpin |
| b.136.1 | SspB-like | SspB-like core: barrel, open; n*=4, S*=8; meander; SH3-like topology; some similarity to the Sm-like fold |
| c.65.1 | Formyltransferase | Formyltransferase 3 layers: a/b/a; mixed beta-sheet of 7 strands, order 3214567; strand 6 is antiparallel to the rest |
| 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 |
| d.103.1 | CytB endotoxin-like | CytB endotoxin-like core: beta-alpha(2)-beta-alpha(2)-beta(4); 3 layers: a/b/a |
| 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 |
| b.38.2 | YhbC-like, C-terminal domain | Sm-like fold core: barrel, open; n*=4, S*=8; meander; SH3-like topology |
| d.78.1 | RPB5-like RNA polymerase subunit | RPB5-like RNA polymerase subunit core: beta-alpha-beta-alpha-beta(2); 2 layers, alpha/beta |
| 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.314.1 | PUG domain-like | PUG domain-like alpha(2)-beta-alpha(2)-beta(2)-alpha; cluster of helices with a small antiparallel beta-sheet on one side; order 132; topological similarity to the fold of an extended R3H domain (PDB 1whr) |
| b.72.2 | Carbohydrate binding domain | WW domain-like core: 3-stranded meander beta-sheet |
| a.119.1 | Lipoxigenase | Lipoxigenase multihelical ! large nearly all-alpha domain |
| f.55.1 | Photosystem II antenna protein-like | Photosystem II antenna protein-like 6 transmembrane helices arranged in three antiparallel pairs (hairpins), segregated by cofactors; there can be insertions of different small subdomains in different exposed loops |
| 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 |
| d.216.1 | Rotavirus NSP2 fragment, N-terminal domain | Rotavirus NSP2 fragment, N-terminal domain consists of six alpha-helices and two beta-hairpins |
| 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 |
| 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.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.164.1 | SMAD MH1 domain | SMAD MH1 domain consists of four alpha-helices and three beta-ribbons |
| e.38.1 | Release factor | Release factor 4 domains: (1) 3-helical bundle; (2) alpha+beta of ferredoxin-like fold (3 and 4) alpha+beta of dsRDB-like fold |
| 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 |
| f.7.1 | Lipovitellin-phosvitin complex; beta-sheet shell regions | Lipovitellin-phosvitin complex; beta-sheet shell regions contains several large open beta-sheets |
| d.302.1 | Coronavirus NSP8-like | Coronavirus NSP8-like core: alpha-beta(2)-alpha-beta(4)-alpha-beta; bifurcated barrel-like beta-sheet |
| d.349.1 | CPE0013-like | CPE0013-like beta(2)-alpha-beta(3); mixed, mostly antiparallel beta-sheet, folded in a half-barrel; order:31254; strand 3 is parallel to strand 1 and is shorter than the rest |
| c.8.9 | FumA C-terminal domain-like | 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 |
| e.75.1 | flu NP-like | Flu NP-like consists of alpha+beta and all-alpha domains; biological unit is a trimer |
| d.332.1 | RGC domain-like | RGC domain-like consists of two beta-sheets and four helices eclosing a cental cavity |
| 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 |
| 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.357.1 | NosL/MerB-like | NosL/MerB-like unusual fold; comprises two structural repeats of beta(2)-alpha-beta motifs, forming separate beta-sheets; probable duplication |
| e.48.1 | Major capsid protein VP5 | Major capsid protein VP5 large protein without apparent domain division |
| b.69.14 | Nucleoporin domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| e.65.1 | VPA0735-like | VPA0735-like consists of a cluster of helices and two beta-sandwich domains of similar topology; probable duplication |
| 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 |
| b.143.1 | NAC domain | NAC domain core: twisted 7-stranded beta-sheet (half-barrel) |
| e.61.1 | ImpE-like | ImpE-like consists of two domains; d1: right-handed superhelix of five helices; d2: pseudo beta-barrel containing structurally similar part to the "Histone-like" proteins from archaea (scop_fa 54161) |
| 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.91.1 | E2 regulatory, transactivation domain | E2 regulatory, transactivation domain complex fold made of bifurcated and coiled beta-sheets |
| b.2.9 | Peptidylarginine deiminase Pad4, middle domain | Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold |
| b.81.4 | Guanosine diphospho-D-mannose pyrophosphorylase/mannose-6-phosphate isomerase linker domain probable rudiment form of the LpxA-like hexapeptide domain | Single-stranded left-handed beta-helix superhelix turns are made of parallel beta-strands and (short) turns |
| c.51.2 | TolB, N-terminal domain | Anticodon-binding domain-like 3 layers: a/b/a; mixed beta-sheet of five strands, order 21345; strand 4 is antiparallel to the rest |
| a.129.1 | GroEL equatorial domain-like duplication: two 4-helical subdomains are related by a pseudo dyad passing through the ATP-binding site ! | GroEL equatorial domain-like multihelical; 8 helices arranged in 2 parallel layers |
| 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 |
| d.213.1 | VSV matrix protein | VSV matrix protein beta-alpha(2)-beta(4)-alpha-beta(2); two layers: alpha/beta; bifurcated coiled beta-sheet: order of the first 5 strands: 23154 |
| d.219.1 | PP2C-like contain binuclear metal (Mn) centre ! | PP2C-like 4 layers: alpha/beta/beta/alpha; antiparallel beta sheets |
| e.46.1 | Virulence-associated V antigen | Virulence-associated V antigen consists of an all-alpha and alpha+beta domains connected by antiparallel coiled coil |
| b.1.25 | LEA14-like | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.14.1 | Calpain large subunit, middle domain (domain III) | Calpain large subunit, middle domain (domain III) sandwich; 8 strands in 2 sheets; jelly-roll |
| d.50.2 | Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain | dsRBD-like alpha-beta(3)-alpha; 2 layers: alpha/beta |
| b.121.7 | Satellite 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 |
| d.67.2 | Arginyl-tRNA synthetase (ArgRS), N-terminal 'additional' domain | RRF/tRNA synthetase additional domain-like core: alpha-beta(2)-alpha-beta(2); 2 layers: alpha/beta |
| a.102.3 | Chondroitin AC/alginate lyase incomplete toroid ! | alpha/alpha toroid multihelical; up to seven alpha-hairpins are arranged in closed circular array; there may be sequence similarities between different superfamilies |
| 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) |
| d.281.1 | Hemolytic lectin CEL-III, C-terminal domain | Hemolytic lectin CEL-III, C-terminal domain unusual fold |
| b.162.1 | At5g01610-like | At5g01610-like contains large meander beta-sheet bent into a scoop-like shape |
| 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.125.1 | Ornithine decarboxylase C-terminal domain | Ornithine decarboxylase C-terminal domain complex alpha+beta motif |
| 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 |
| b.27.1 | Soluble secreted chemokine inhibitor, VCCI | Soluble secreted chemokine inhibitor, VCCI sandwich; 11 strands in 2 sheets; greek-key |
| d.58.40 | D-ribose-5-phosphate isomerase (RpiA), lid domain | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| 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) |
| e.32.1 | Phase 1 flagellin | Phase 1 flagellin 3 domains: (1) alpha-helical bundle; (2&3) complex all-beta folds |
| 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 |
| a.175.1 | Orange carotenoid protein, N-terminal domain duplication: contains four structural repeats arranged into two intertwined 4-helical subdomains ! | Orange carotenoid protein, N-terminal domain multihelical; array |
| 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.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 |
| d.304.1 | TTHA1013/TTHA0281-like | TTHA1013/TTHA0281-like beta(3)-alpha-beta; 2 layers; mixed beta-sheet, order 4123, strands 1 and 4 are parallel to each other; topological similarity to the SEP domain fold (scop_cf 102847); dimerises via the long C-terminal strand with the formation of a single beta-sheet |
| a.87.1 | DBL homology domain (DH-domain) | DBL homology domain (DH-domain) multihelical; core: 5-helical bundle |
| d.305.1 | NAP-like | NAP-like core: central meander 4-stranded beta-sheet (order: 1234) transversed by a C-terminal helix |
| 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 |
| 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] |