| SCOP superfamily ID |
superfamiily description |
corresponding fold description |
| b.77.3 | Mannose-binding lectins | beta-Prism I consists of 3 4-stranded sheets; strands are parallel to the 3-fold axis ! duplication: has internal pseudo threefold symmetry |
| 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.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 |
| b.25.1 | Osmotin, thaumatin-like protein has two smaller insertion domains ! | Osmotin, thaumatin-like protein sandwich; 11 strands in 2 sheets |
| 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 |
| b.29.1 | Concanavalin A-like lectins/glucanases | Concanavalin A-like lectins/glucanases sandwich; 12-14 strands in 2 sheets; complex topology |
| b.3.5 | Cna protein B-type domain | Prealbumin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands to common fold |
| b.69.14 | Nucleoporin domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.121.4 | Positive stranded ssRNA viruses | Nucleoplasmin-like/VP (viral coat and capsid proteins) sandwich; 8 strands in 2 sheets; jelly-roll; some members can have additional 1-2 strands ! characteristic interaction between the domains of this fold allows the formation of five-fold and pseudo six-fold assemblies |
| b.22.1 | TNF-like | TNF-like sandwich, 10 strands in 2 sheets; jelly-roll |
| 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.1.1 | Immunoglobulin | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| 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.1.2 | Fibronectin type III | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| d.194.1 | CNF1/YfiH-like putative cysteine hydrolases | CNF1/YfiH-like putative cysteine hydrolases 4 layers: alpha/beta/beta/alpha; mixed beta sheets |
| b.5.1 | alpha-Amylase inhibitor tendamistat | alpha-Amylase inhibitor tendamistat sandwich; 6 strands in 2 sheets |
| b.68.2 | Soluble quinoprotein glucose dehydrogenase | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| b.68.1 | Sialidases | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| 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.160.1 | Carbon-nitrogen hydrolase | Carbon-nitrogen hydrolase 4 layers: alpha/beta/beta/alpha; mixed beta sheets; contains duplication |
| b.67.2 | Arabinanase/levansucrase/invertase | 5-bladed beta-propeller consists of five 4-stranded beta-sheet motifs; meander |
| 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.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 |
| 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.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.69.11 | Putative isomerase YbhE | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.1.13 | Superoxide reductase-like | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.1.14 | Invasin/intimin cell-adhesion fragments | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| 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 |
| 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 |
| 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.69.1 | Galactose oxidase, central domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.69.7 | Peptidase/esterase 'gauge' domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.18.1 | Galactose-binding domain-like | Galactose-binding domain-like sandwich; 9 strands in 2 sheets; jelly-roll |
| b.68.11 | Kelch motif | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| b.6.1 | Cupredoxins contains copper-binding site ! | Cupredoxin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands |
| b.155.1 | L21p-like | L21p-like core: sandwich, 6 strands in 2 sheets |
| 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 |
| b.126.1 | Adsorption protein p2 | Adsorption protein p2 multisheet protein containing partial beta-propeller and beta-sandwich regions |
| b.30.5 | Galactose mutarotase-like probable carbohydrate-binding domain in enzymes acting on sugars ! | Supersandwich sandwich; 18 strands in 2 sheets |
| d.177.1 | FAH | FAH unusual fold; contains 3 layers of beta-sheet structure |
| b.7.1 | C2 domain (Calcium/lipid-binding domain, CaLB) two constituent families are related by circular permutation ! | C2 domain-like sandwich; 8 strands in 2 sheets; greek-key |
| b.68.10 | GyrA/ParC C-terminal domain-like beta-pinwheel, a variant of beta-propeller fold; unlike an canonical beta-propeller, strands 1 and 4 of each four-strand repeat unit are in one blade whereas strands 2 and 3 are in the next blade ! | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| b.85.4 | dUTPase-like forms tight trimer through an additional beta-sheet in each subunit ! subunit beta-sheets are orthogonally packed around the three-fold axis ! | beta-clip double-stranded ribbon sharply bent in two places; the ribbon ends form incomplete barrel; jelly-roll |
| 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.69.2 | YVTN repeat-like/Quinoprotein amine dehydrogenase | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.69.3 | Nitrous oxide reductase, N-terminal domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| c.3.1 | FAD/NAD(P)-binding domain | FAD/NAD(P)-binding domain core: 3 layers, b/b/a; central parallel beta-sheet of 5 strands, order 32145; top antiparallel beta-sheet of 3 strands, meander |
| b.69.10 | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.68.5 | YWTD domain | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| f.10.1 | Viral glycoprotein, central and dimerisation domains | Viral glycoprotein, central and dimerisation domains 2 intertwined domains; all-beta and alpha+beta |
| b.69.6 | Clathrin heavy-chain terminal domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; meander |
| b.3.2 | Carboxypeptidase regulatory domain-like | Prealbumin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands to common fold |
| b.1.4 | beta-Galactosidase/glucuronidase domain | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.68.9 | NHL repeat | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| d.137.1 | Monooxygenase (hydroxylase) regulatory protein duplication: consists of two beta-alpha-(beta)-beta(2) motifs; some topological similarity to the ferredoxin-like fold ! | Monooxygenase (hydroxylase) regulatory protein corner-like structure formed by two sheets and filled in with 2-3 helices |
| b.19.1 | Viral protein domain forms homotrimers ! | Viral protein domain sandwich; 9 strands in 2 sheets; jelly-roll; form trimers |
| b.69.8 | Integrin alpha N-terminal domain | 7-bladed beta-propeller consists of seven 4-stranded beta-sheet motifs; 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 |
| b.3.4 | Transthyretin (synonym: prealbumin) | Prealbumin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands to common fold |
| 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.1.5 | Transglutaminase, two C-terminal domains | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.68.4 | TolB, C-terminal domain | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| 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.68.8 | Fucose-specific lectin | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| 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 |
| b.3.1 | Starch-binding domain-like | Prealbumin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands to common fold |
| b.82.5 | TRAP-like shorter variant of double-helix; assembles in large ring-like structures containing from 9 to 11 domains ! | 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 |
| 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.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) |
| 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.24.1 | Ribosomal protein L1 | Ribosomal protein L1 2 domains: (1) alpha+beta; (2) alpha/beta (interrupts domain 1) |
| b.121.3 | Nucleoplasmin-like core domain oligomerizes into a pentameric ring structure ! | Nucleoplasmin-like/VP (viral coat and capsid proteins) sandwich; 8 strands in 2 sheets; jelly-roll; some members can have additional 1-2 strands ! characteristic interaction between the domains of this fold allows the formation of five-fold and pseudo six-fold assemblies |
| b.2.5 | p53-like transcription factors | Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold |
| b.1.18 | E set domains "Early" Ig-like fold families possibly related to the immunoglobulin and/or fibronectin type III superfamilies ! | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.61.4 | Quinohemoprotein amine dehydrogenase A chain, domain 3 | Streptavidin-like barrel, closed; n=8, S=10; meander |
| c.86.1 | Phosphoglycerate kinase | Phosphoglycerate kinase consists of two non-similar domains, 3 layers (a/b/a) each ! Domain 1 has parallel beta-sheet of 6 strands, order 342156 ! Domain 2 has parallel beta-sheet of 6 strands, order 321456 |
| b.2.3 | Bacterial adhesins | Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold |
| g.27.1 | FnI-like domain | FnI-like domain disulfide-rich, all-beta |
| b.68.3 | Thermostable phytase (3-phytase) | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| b.68.6 | Calcium-dependent phosphotriesterase | 6-bladed beta-propeller consists of six 4-stranded beta-sheet motifs; meander |
| 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 |
| b.135.1 | Superantigen (mitogen) Ypm | Superantigen (mitogen) Ypm sandwich; 9 strands in 2 sheets; jelly-roll |
| 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 |
| b.1.11 | PapD-like contains PP switch between strands D and C' ! | 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 |
| b.82.3 | cAMP-binding domain-like | Double-stranded beta-helix one turn of helix is made by two pairs of antiparallel strands linked with short turns ! has appearance of a sandwich of distinct architecture and jelly-roll topology |
| 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.64.1 | Mannose 6-phosphate receptor domain | Mannose 6-phosphate receptor domain barrel, partly open; n*=8, S*=10; one psi loop |
| b.32.1 | gp9 | gp9 consists of two different beta-sandwich domains unrelated to other beta-sandwich folds |
| 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 |
| g.41.5 | Rubredoxin-like | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| b.114.1 | N-utilization substance G protein NusG, insert domain | N-utilization substance G protein NusG, insert domain sandwich; 8 strands in 2 sheets; meander |
| e.68.1 | YacF-like probable biological unit is a dimer | YacF-like 2 domains; d1: kinked four-helical bundle, inserted in d2: beta-sandwich of 7 strands in two sheets |
| b.23.1 | Spermadhesin, CUB domain | CUB-like sandwich, 10 strands in 2 sheets; jelly-roll |
| d.151.1 | DNase I-like | DNase I-like contains beta-sandwich; duplication of alpha+beta motif |
| b.11.1 | gamma-Crystallin-like | gamma-Crystallin-like sandwich; 8 strands in 2 sheets; greek-key ! duplication: has internal pseudo twofold symmetry |
| b.121.1 | PHM/PNGase F members of this superfamily bind peptide substrates ! duplication: consists of two domains of this fold packed together like the adjacent nucleoplasmin subunits ! | Nucleoplasmin-like/VP (viral coat and capsid proteins) sandwich; 8 strands in 2 sheets; jelly-roll; some members can have additional 1-2 strands ! characteristic interaction between the domains of this fold allows the formation of five-fold and pseudo six-fold assemblies |
| b.97.1 | Cytolysin/lectin some topological similarity to osmotin ! | Cytolysin/lectin sandwich, 10 strands in 2 sheets; |
| b.134.1 | Smp-1-like | Smp-1-like sandwich; 9 strands in 2 sheets; greek-key/jelly-roll |
| b.3.3 | VHL | Prealbumin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands to common fold |
| 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.66.1 | Hemopexin-like domain | 4-bladed beta-propeller consists of four 4-stranded beta-sheet motifs; meander |
| d.36.1 | Chalcone isomerase | Chalcone isomerase beta(3)-alpha(2)-beta-alpha(2)-beta3; 2 layers alpha/beta; antiparallel sheet: order 1234567 |
| b.34.7 | DNA-binding domain of retroviral integrase | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| b.91.1 | E2 regulatory, transactivation domain | E2 regulatory, transactivation domain complex fold made of bifurcated and coiled beta-sheets |
| 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 |
| b.3.7 | Hypothetical protein PA1324 | Prealbumin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands to common fold |
| d.18.1 | ssDNA-binding transcriptional regulator domain | ssDNA-binding transcriptional regulator domain helix-swapped dimer of beta(4)-alpha motifs |
| b.1.26 | ICP-like topological variant with similarity to the Cupredoxin-like fold ( | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.121.5 | ssDNA viruses | Nucleoplasmin-like/VP (viral coat and capsid proteins) sandwich; 8 strands in 2 sheets; jelly-roll; some members can have additional 1-2 strands ! characteristic interaction between the domains of this fold allows the formation of five-fold and pseudo six-fold assemblies |
| b.1.3 | PKD domain | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.2.2 | Carbohydrate-binding domain | Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold |
| b.115.1 | Calcium-mediated lectin | Calcium-mediated lectin sandwich; 9 strands in 2 sheets; greek-key |
| 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 |
| b.121.2 | Group II dsDNA viruses VP duplication: consists of two domains of this fold packed together like the nucleoplasmin subunits ! trimeric; in the trimers, the domains are arranged around pseudo six-fold axis ! | Nucleoplasmin-like/VP (viral coat and capsid proteins) sandwich; 8 strands in 2 sheets; jelly-roll; some members can have additional 1-2 strands ! characteristic interaction between the domains of this fold allows the formation of five-fold and pseudo six-fold assemblies |
| b.132.1 | Supernatant protein factor (SPF), C-terminal domain | Supernatant protein factor (SPF), C-terminal domain sandwich; 8 strands in 2 sheets; jelly-roll; similarity to the Nucleoplasmin-like/VP fold |
| b.7.5 | Smr-associated domain-like | C2 domain-like sandwich; 8 strands in 2 sheets; greek-key |
| 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 |
| d.79.9 | BB2672-like contains extra N-terminal strand and a beta-hairpin insertion between strands 3 and 4 that packs against the main beta-sheet | Bacillus chorismate mutase-like core: beta-alpha-beta-alpha-beta(2); mixed beta-sheet: order: 1423, strand 4 is antiparallel to the rest |
| 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 |
| b.20.1 | ENV polyprotein, receptor-binding domain | ENV polyprotein, receptor-binding domain sandwich; 9 strands in 2 sheets; greek-key; contains a few helices in loop regions |
| b.7.2 | Periplasmic chaperone C-domain | C2 domain-like sandwich; 8 strands in 2 sheets; greek-key |
| b.1.27 | CalX-like | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.33.1 | ISP domain | ISP domain consists of two all-beta subdomains: conserved small domain has a rubredoxin-like fold; larger domain consists of 6 beta-stands packed in either sandwich of two 3-stranded sheets or closed barrel (n=6; S=8) |
| b.133.1 | Dextranase, N-terminal domain | Dextranase, N-terminal domain sandwich; 9 strands in 2 sheets; greek-key |
| 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 |
| e.65.1 | VPA0735-like | VPA0735-like consists of a cluster of helices and two beta-sandwich domains of similar topology; probable duplication |
| b.80.3 | Cell-division inhibitor MinC, C-terminal domain superhelix turns are made of three short strands each ! | Single-stranded right-handed beta-helix superhelix turns are made of parallel beta-strands and (short) turns |
| b.82.6 | Thiamin pyrophosphokinase, substrate-binding domain | 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.219.1 | PP2C-like contain binuclear metal (Mn) centre ! | PP2C-like 4 layers: alpha/beta/beta/alpha; antiparallel beta sheets |
| b.1.12 | Purple acid phosphatase, N-terminal domain | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| e.2.1 | Replication terminator protein (Tus) | Replication terminator protein (Tus) contains a cluster of helices and a beta-sandwich |
| b.30.2 | Amine oxidase catalytic domain | Supersandwich sandwich; 18 strands in 2 sheets |
| d.126.1 | Pentein | Pentein, beta/alpha-propeller duplication: composed of 5 alpha-beta(2)-alpha-beta units arranged around pseudo fivefold axis |
| b.166.1 | MAL13P1.257-like | MAL13P1.257-like complex fold; duplication: consists of two intertwinned structural repeats related by pseudo dyad |
| d.181.1 | Insert subdomain of RNA polymerase alpha subunit | Insert subdomain of RNA polymerase alpha subunit unusual fold; contains a left-handed beta-alpha-beta unit |
| 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 |
| b.150.1 | Putative glucosidase YicI, C-terminal domain | Putative glucosidase YicI, C-terminal domain sandwich; 10 strands in two sheets |
| 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.154.1 | DmpA/ArgJ-like convergent similarity to the Ntn amidohydrolases ! | DmpA/ArgJ-like duplication of beta(3)-alpha-beta-alpha motif; 4 layers: alpha/beta/beta/alpha |
| 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.30.6 | V-region of surface antigen I/II (SA I/II, PAC) | Supersandwich sandwich; 18 strands in 2 sheets |
| b.1.20 | Tp47 lipoprotein, middle and C-terminal domains | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| d.252.1 | CheC-like | CheC-like duplication: tandem repeat of two intertwined alpha-beta-(X)-beta(2) motifs |
| b.9.1 | Neurophysin II duplication: composed of two structural repeats ! | Neurophysin II sandwich; 8 strands in 2 sheets; meander |
| 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 |
| 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 |
| 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 |
| 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.72.2 | Carbohydrate binding domain | WW domain-like core: 3-stranded meander beta-sheet |
| b.40.7 | CheW-like | OB-fold barrel, closed or partly opened n=5, S=10 or S=8; greek-key |
| b.105.1 | Penicillin-binding protein associated domain | Penicillin-binding protein associated domain sandwich; 6 strands in 2 sheets |
| b.1.15 | Integrin domains | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.40.1 | Staphylococcal nuclease | OB-fold barrel, closed or partly opened n=5, S=10 or S=8; greek-key |
| 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 |
| c.103.1 | MTH938-like | MTH938-like core: 3 layers, b+a/b/a ; the central mixed sheet of 5 strands: order 21534; strand 2 is antiparallel to the rest |
| f.12.1 | Head and neck region of the ectodomain of NDV fusion glycoprotein | Head and neck region of the ectodomain of NDV fusion glycoprotein 3 intertwined all-beta domains |
| e.12.1 | DNA topoisomerase IV, alpha subunit | DNA topoisomerase IV, alpha subunit 2 domains: (1) toprim alpha/beta; (2) "winged helix"-like |
| 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 |
| b.85.2 | Head decoration protein D (gpD, major capsid protein D) | beta-clip double-stranded ribbon sharply bent in two places; the ribbon ends form incomplete barrel; jelly-roll |
| g.7.1 | Snake toxin-like | Snake toxin-like disulfide-rich fold: nearly all-beta |
| 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 |
| g.93.1 | Zinc hairpin stack | Zinc hairpin stack stack of beta-hairpins; in the middle hairpins, there is HCxxCxxC motif, the first and the last residues of which contribute to the zinc-binding site on one side of hairpin, whereas the middle residues contribute to the zinc-binding site on the other side |
| b.84.1 | Single hybrid motif 7 to 8 strands in 2 beta-sheets ! | Barrel-sandwich hybrid sandwich of half-barrel shaped beta-sheets |
| b.34.14 | PAZ 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.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 |
| b.147.1 | BTV NS2-like ssRNA-binding domain | BTV NS2-like ssRNA-binding domain sandwich; 9 strands in 2 sheets; unusual topology with 2 crossover loops |
| g.41.2 | Microbial and mitochondrial ADK, insert "zinc finger" domain | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| 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 |
| g.76.1 | Hormone receptor domain | Hormone receptor domain disulfide-rich all-beta fold; contains beta sandwich of 5 strands |
| b.7.4 | Rab geranylgeranyltransferase alpha-subunit, insert domain | C2 domain-like sandwich; 8 strands in 2 sheets; greek-key |
| b.2.7 | Second domain of Mu2 adaptin subunit (ap50) of ap2 adaptor duplication: one domain of this fold is inserted into another domain of the same fold ! | Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold |
| d.35.1 | Heme-binding protein A (HasA) | Heme-binding protein A (HasA) beta-alpha-beta(6)-alpha(2); antiparallel sheet: order 165432 |
| 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.103.1 | MoeA N-terminal region -like | MoeA N-terminal region -like complex fold made of bifurcated and coiled b-sheets |
| g.89.1 | CHY zinc finger-like | CHY zinc finger-like trimetal-bound fold; integration of HIT/MYND-like and rubredoxin-like fingers |
| b.6.2 | Major surface antigen p30, SAG1 SS-crosslinked beta-sandwich of distinct geometry but topologically similar to cupredoxins ! | Cupredoxin-like sandwich; 7 strands in 2 sheets, greek-key ! variations: some members have additional 1-2 strands |
| b.149.1 | Beta-galactosidase LacA, domain 3 | Beta-galactosidase LacA, domain 3 sandwich; 8 strands in 2 sheets |
| 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 |
| b.98.1 | Leukotriene A4 hydrolase N-terminal domain | Leukotriene A4 hydrolase N-terminal domain duplication: two beta-sandwiches of similar topologies are fused together in a single three beta-sheet domain |
| b.23.2 | Collagen-binding domain N-terminal strand appears only in calcium-free form ! | CUB-like sandwich, 10 strands in 2 sheets; jelly-roll |
| 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.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.141.1 | Ribosomal protein L6 | Ribosomal protein L6 consists of two beta-sheets and one alpha-helix packed around single core |
| b.127.1 | Baseplate structural protein gp8 | Baseplate structural protein gp8 multisheet protein with a mixture of beta-sandwich and beta-barrel features |
| b.128.1 | Hypothetical protein YojF | Hypothetical protein YojF pseudobarrel; capped at one end by an alpha-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.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 |
| b.77.1 | Vitelline membrane outer protein-I (VMO-I) | beta-Prism I consists of 3 4-stranded sheets; strands are parallel to the 3-fold axis ! duplication: has internal pseudo threefold symmetry |
| 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.65.1 | Formyltransferase | Formyltransferase 3 layers: a/b/a; mixed beta-sheet of 7 strands, order 3214567; strand 6 is antiparallel to the rest |
| 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 |
| e.28.1 | Reovirus inner layer core protein p3 | Reovirus inner layer core protein p3 large protein without apparent domain division; has a number of all-alpha regions and one all beta domain near the C-end |
| b.1.16 | Lamin A/C globular tail domain | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.84.2 | Rudiment single hybrid motif | Barrel-sandwich hybrid sandwich of half-barrel shaped beta-sheets |
| 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 |
| 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.121.6 | Group I dsDNA 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.187.1 | Photosystem I subunit PsaD | Photosystem I subunit PsaD beta-BETA(2)-beta-alpha-beta(2); antiparallel sheet: order 2134 packed against helix and BETA-hairpin on the same side; irregular C-terminal tail |
| d.264.1 | Prim-pol domain | Prim-pol domain consists of two alpha+beta domains |
| g.41.15 | NOB1 zinc finger-like | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| 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 |
| b.85.5 | Tlp20, baculovirus telokin-like protein similar to dUTPase in fold and trimeric assembly ! | beta-clip double-stranded ribbon sharply bent in two places; the ribbon ends form incomplete barrel; jelly-roll |
| b.88.1 | Mss4-like duplication: tandem repeat of two similar structural motifs ! | Mss4-like complex fold made of several coiled beta-sheets |
| b.2.4 | Alpha-macroglobulin receptor domain | Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold |
| g.41.1 | Methionyl-tRNA synthetase (MetRS), Zn-domain | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| 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 |
| 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 |
| b.112.1 | C-terminal domain of mollusc hemocyanin analogous to the Ig-like domain of arthropod hemocyanin; similar sequential but different spatial position relative the shared domain ! | C-terminal domain of mollusc hemocyanin six-stranded beta-sandwich, jelly-roll/greek-key topology |
| 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 |
| 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 |
| e.23.1 | Acetyl-CoA synthetase-like | Acetyl-CoA synthetase-like 4 domains: (1&2) duplication: share the same alpha/beta fold; (3) beta-barrel; (4) alpha+beta |
| d.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 |
| 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.155.1 | Pyruvoyl-dependent histidine and arginine decarboxylases two chains result from self-processing single-chain precursor; form heterohexamer ! | Pyruvoyl-dependent histidine and arginine decarboxylases duplication of beta-alpha-beta(2) motif; 4 layers: alpha/beta/beta/alpha; contains "silk" beta-sandwich |
| b.1.21 | Fungal immunomodulatory protein, FIP | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| b.129.1 | AbrB/MazE/MraZ-like members of this superfamily are known or predicted to have DNA-binding function ! | Double-split beta-barrel pseudobarrel; capped on both ends by alpha-helices |
| b.123.1 | Hypothetical protein TM1070 | Hypothetical protein TM1070 sandwich; 8 strands in 2 sheets; jelly-roll |
| b.154.1 | Agglutinin HPA-like forms similar trimers to the PCSK9 V domain; strand directions of the subunit beta-sheets are parallel to the three-fold symmetry axis; ! | HPA-like sandwich, 6 strands in 2 sheets; jelly-roll (truncated); also includes the pending PCSK9 V domain-like superfamily (the C-terminal domains of 2p4e and 2pmw) |
| d.41.1 | CO dehydrogenase molybdoprotein N-domain-like | alpha/beta-Hammerhead core: beta-BETA-alpha-beta-BETA-beta-alpha; contains a beta-hammerhead motif similar to that in barrel-sandwich hybrids |
| b.86.1 | Hedgehog/intein (Hint) domain duplication: contains two intertwined structural repeats ! | Hedgehog/intein (Hint) domain complex fold made of five beta-hairpin units and a b-ribbon arc |
| 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.16.1 | Ecotin, trypsin inhibitor | Ecotin, trypsin inhibitor sandwich; 8 strands in 2 sheets; complex topology with the crossing loops |
| d.127.1 | Creatinase/aminopeptidase | Creatinase/aminopeptidase duplication: composed of two very similar alpha+beta folds |
| 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) |
| 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 |
| g.41.10 | Zn-finger domain of Sec23/24 | Rubredoxin-like metal(zinc or iron)-bound fold; sequence contains two CX(n)C motifs, in most cases n = 2 |
| b.2.8 | beta-sandwich domain of Sec23/24 | Common fold of diphtheria toxin/transcription factors/cytochrome f sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold |
| 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.1.1 | Serpins | Serpins contains a cluster of helices and a beta-sandwich |
| 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.1.17 | Thiol:disulfide interchange protein DsbD, N-terminal domain (DsbD-alpha) | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| g.35.1 | HIPIP (high potential iron protein) | HIPIP (high potential iron protein) folds around 4Fe-4S cluster |
| c.1.4 | FMN-linked oxidoreductases | 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.110.1 | Cloacin translocation domain | Cloacin translocation domain complex fold made of several coiled beta-sheets |
| b.7.3 | PHL pollen allergen | C2 domain-like sandwich; 8 strands in 2 sheets; greek-key |
| d.281.1 | Hemolytic lectin CEL-III, C-terminal domain | Hemolytic lectin CEL-III, C-terminal domain unusual fold |
| b.1.24 | Accessory protein X4 (ORF8, ORF7a) | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| c.1.25 | Monomethylamine methyltransferase MtmB | 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.192.1 | YlxR-like | YlxR-like alpha+beta fold; could have evolved from a glucocorticoid receptor-like zinc finger domain |
| f.4.3 | Porins | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| 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 |
| 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 |
| b.176.1 | AttH-like | AttH-like duplication: two flattened beta-barrels of lipocalin-like topology are orthogonally packed with a pseudo twofold symmetry |
| c.1.5 | Inosine monophosphate dehydrogenase (IMPDH) The phosphate moiety of substrate binds in the 'common' phosphate-binding site ! | 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.172.1 | YopX-like conmrises proteins of plasmid and phage origins | YopX-like consists of two domains: the N-terminal dimerisation domain of variable structure and the C-terminal domain with similarity to the SH3-like fold |
| 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 |
| c.1.21 | Dihydropteroate synthetase-like | 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.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 |
| b.94.1 | Olfactory marker protein | Olfactory marker protein sandwich; 8 strands in 2 sheets; jelly-roll |
| 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.1.23 | ApaG-like | Immunoglobulin-like beta-sandwich sandwich; 7 strands in 2 sheets; greek-key ! some members of the fold have additional strands |
| 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.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 |
| d.211.2 | Plakin repeat repeats associate forming globular subdomains ! | beta-hairpin-alpha-hairpin repeat multiple repeats of beta(2)-alpha(2) motif |
| 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.332.1 | RGC domain-like | RGC domain-like consists of two beta-sheets and four helices eclosing a cental cavity |
| b.102.1 | Methuselah ectodomain duplication: contains two similar sub domains connected by a structured linker ! | Methuselah ectodomain complex fold |
| d.247.1 | Chromosomal protein MC1 | Chromosomal protein MC1 beta(2)-alpha-beta(3); 2 layers: alpha/beta |
| d.170.2 | A heparin-binding domain | SRCR-like unusual fold; disulfide-rich; core: beta-x-alpha-beta-loop-beta |
| 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) |
| 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 |
| e.15.1 | Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment | Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment 2 domains: alpha+beta and all-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 |
| 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) |
| 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 |
| e.32.1 | Phase 1 flagellin | Phase 1 flagellin 3 domains: (1) alpha-helical bundle; (2&3) complex all-beta folds |
| b.146.1 | Ctag/Cox11 | Ctag/Cox11 sandwich; 7 strands in 2 sheets, greek-key; permutation of the immunoglobulin-like fold |
| a.102.5 | Family 10 polysaccharide lyase | alpha/alpha toroid multihelical; up to seven alpha-hairpins are arranged in closed circular array; there may be sequence similarities between different superfamilies |
| g.45.1 | ArfGap/RecO-like zinc finger | ArfGap/RecO-like zinc finger zinc-bound alpha+beta motif |
| b.90.1 | Head-binding domain of phage P22 tailspike protein | Head-binding domain of phage P22 tailspike protein complex fold made of bifurcated and partly folded beta-sheet |
| d.172.1 | gp120 core | gp120 core unusual fold |
| b.167.1 | FimD N-terminal domain-like | FimD N-terminal domain-like pseudo barrel, capped by an alpha-helix; some topological similarity to the PRC-barrel domain (scop_sf 50346) and the N-terminal domain of Glutamine synthetase (scop_sf 54368) |
| 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 |
| b.27.1 | Soluble secreted chemokine inhibitor, VCCI | Soluble secreted chemokine inhibitor, VCCI sandwich; 11 strands in 2 sheets; greek-key |
| d.238.1 | Hypothetical protein TM0875 | Hypothetical protein TM0875 unusual fold; core: beta(2)-loop-beta(2)-alpha-beta; mixed beta-sheet: order 51243; parallel strands 2 and 4 |
| 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.148.1 | Coronavirus RNA-binding domain | Coronavirus RNA-binding domain coiled antiparallel beta-sheet of 5 strands, order 51324; complex topology, crossing loops |
| g.80.1 | AN1-like Zinc finger | AN1-like Zinc finger dimetal(zinc)-bound alpha+beta fold; partial similarity to the Cysteine-rich domain fold (scop_cf 57888) |
| b.96.1 | Nicotinic receptor ligand binding domain-like | Nicotinic receptor ligand binding domain-like sandwich; 8 strands in 2 sheets; greek-key: partial topological similarity to immunoglobulin-like folds |
| 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 |
| a.262.1 | PriB N-terminal domain-like | PriB N-terminal domain-like multihelical bundle; contains buried central helix; also includes the PriA interface-forming insert subdomain (alpha+beta) |
| 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 |
| 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)] |
| d.341.1 | Peptidoglycan deacetylase N-terminal noncatalytic region | Peptidoglycan deacetylase N-terminal noncatalytic region consists of two different domains, d1: [alpha-beta(2)-alpha-beta(3); 3 layers: a/b/a; mixed beta-sheet, order 12345, strands 2 and 3 are parallel to each other with a left-handed crossover connection], d2: alpha-beta(3)-alpha; 2 layers; antiparallel beta-sheet, order 123] |
| d.269.1 | Gamma-glutamyl cyclotransferase-like | Gamma-glutamyl cyclotransferase-like beta-alpha-beta(4)-alpha-beta(2); contains beta-sheet barrel (n=5, S=8) |
| b.117.1 | Obg GTP-binding protein N-terminal domain | Obg-fold this fold is formed by three glycine-rich regions inserted into a small 8-stranded beta-sandwich ! these regions form six left-handed collagen-like helices packed and H-bonded together |
| 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.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 |