| SCOP superfamily ID |
superfamiily description |
corresponding fold description |
| d.36.1 | Chalcone isomerase | Chalcone isomerase beta(3)-alpha(2)-beta-alpha(2)-beta3; 2 layers alpha/beta; antiparallel sheet: order 1234567 |
| b.60.1 | Lipocalins bind hydrophobic ligands in their interior ! | Lipocalins barrel, closed or opened; n=8, S=12; meander |
| 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 |
| 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 |
| d.25.1 | Mitochondrial glycoprotein MAM33-like | Mitochondrial glycoprotein MAM33-like core: beta(7)-alpha(2); N- and C-terminal extensions form a coiled coil subdomain |
| b.76.1 | Outer surface protein 21 stranded sheet partly folded upon itself at the ends ! | open-sided beta-meander single sheet formed by beta-hairpin repeats; exposed on both sides in the middle |
| e.1.1 | Serpins | Serpins contains a cluster of helices and a beta-sandwich |
| d.19.1 | MHC antigen-recognition domain | MHC antigen-recognition domain dimeric |
| b.157.1 | Hcp1-like probable biological unit is a ring-like hexamer containing a 24-stranded beta-barrel made of the subunit beta-sheets ! | Hcp1-like barrel, closed; n=6, S=12; contains extra, non-barrel strand 7 at the C-terminus |
| d.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.61.2 | beta-Barrel protease inhibitors | Streptavidin-like barrel, closed; n=8, S=10; meander |
| d.223.1 | Polo-box domain Serine/threonine protein kinase-associated motif embedded in two distinct folds ! | Polo-box domain beta(6)-alpha; antiparallel beta-sheet, meander |
| b.30.5 | Galactose mutarotase-like probable carbohydrate-binding domain in enzymes acting on sugars ! | Supersandwich sandwich; 18 strands in 2 sheets |
| b.74.1 | Carbonic anhydrase | Carbonic anhydrase single sheet; 10 strands |
| 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.153.2 | Archaeal IMP cyclohydrolase PurO has a putative active site in the same topological location as the Ntn hydrolase but lacks the N-terminal nucleophile ! | Ntn hydrolase-like 4 layers: alpha/beta/beta/alpha; has an unusual sheet-to-sheet packing |
| f.4.3 | Porins | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| d.199.1 | DNA-binding C-terminal domain of the transcription factor MotA | MotA C-terminal domain-like alpha-beta(4)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| b.61.1 | Avidin/streptavidin | Streptavidin-like barrel, closed; n=8, S=10; meander |
| b.24.1 | Hyaluronate lyase-like, C-terminal domain | Hyaluronate lyase-like, C-terminal domain sandwich, 10 strands in 2 sheets; "folded meander" |
| d.17.5 | Uracil-DNA glycosylase inhibitor protein has an additional strand at the C-terminus and a helix inserted after the first strand ! | Cystatin-like Core: alpha-beta(4); helix packs against coiled antiparallel beta-sheet |
| d.98.1 | beta-lactamase-inhibitor protein, BLIP | BLIP-like alpha(2)-beta(4); 2 layers: alpha/beta |
| 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 |
| 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.129.3 | Bet v1-like contains a single copy of this fold with a alpha-beta2 insertion after the first helix; there is a cavity between the beta-sheet and the long C-terminal helix ! | TBP-like beta-alpha-beta(4)-alpha |
| d.98.2 | BT0923-like Duplication: tandem repeat of two similar structural subdomains, which associate like the BLIP repeats but differ from them by transposition of the helices | BLIP-like alpha(2)-beta(4); 2 layers: alpha/beta |
| d.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.219.1 | PP2C-like contain binuclear metal (Mn) centre ! | PP2C-like 4 layers: alpha/beta/beta/alpha; antiparallel beta sheets |
| b.159.1 | Allene oxide cyclase-like | AOC barrel-like barrel, closed; n=8, S=10; meander; mirrored (reversed) topology to the Spreptavidin-like and Lipocalin-like folds |
| 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.61.4 | Quinohemoprotein amine dehydrogenase A chain, domain 3 | Streptavidin-like barrel, closed; n=8, S=10; meander |
| d.296.1 | YktB/PF0168-like | YktB/PF0168-like alpha-beta(4)-alpha-beta(2)-alpha-beta-alpha; 2 layers, a/b; antiparallel beta-sheet, order: 1234756; half-barrel shape; topological similarity to the MotA C-terminal domain-like fold (scop_cf 69651) and the Secretion chaperone-like fold (scop_cf 69634) |
| d.23.1 | Tubby C-terminal domain-like | Tubby C-terminal domain-like beta-sheet folds into a barrel (n=12, S=12) around the central helix |
| d.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 |
| e.60.1 | Thermophilic metalloprotease-like | Thermophilic metalloprotease-like consists of two domains; d1: alpha/beta (3 layers, a/b/a; parralel beta-sheet, order 2134); d2: pseudo beta-barrel capped by helices |
| d.82.2 | Frataxin/Nqo15-like | N domain of copper amine oxidase-like alpha-beta(5)-alpha; 2 layers: alpha/beta; meander antiparallel sheet |
| b.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.233.1 | Inhibitor of vertebrate lysozyme, Ivy | Inhibitor of vertebrate lysozyme, Ivy alpha(2)-beta(5)-alpha(2); 3 layers a/b/a; meander beta-sheet |
| f.4.6 | Tsx-like channel forms (12,16) barrel ! | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| b.76.2 | Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain 11+ stranded sheet partly folded upon itself at the C-end ! | open-sided beta-meander single sheet formed by beta-hairpin repeats; exposed on both sides in the middle |
| d.85.1 | RNA bacteriophage capsid protein | RNA bacteriophage capsid protein 6-standed beta-sheet followed with 2 helices; meander |
| 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 |
| b.159.2 | SO1590-like | AOC barrel-like barrel, closed; n=8, S=10; meander; mirrored (reversed) topology to the Spreptavidin-like and Lipocalin-like folds |
| f.7.1 | Lipovitellin-phosvitin complex; beta-sheet shell regions | Lipovitellin-phosvitin complex; beta-sheet shell regions contains several large open beta-sheets |
| 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.251.1 | Hypothetical protein YwqG | Hypothetical protein YwqG duplication: contains two similar beta-x-beta(4) motifs swapped with the first strands |
| d.220.1 | Metal cation-transporting ATPase, ATP-binding domain N | Metal cation-transporting ATPase, ATP-binding domain N unusual fold; core: beta-alpha(2)-beta(3)-alpha(2)-beta(2); 6-stranded antiparallel beta-sheet, order: 165432 |
| b.30.2 | Amine oxidase catalytic domain | Supersandwich sandwich; 18 strands in 2 sheets |
| b.176.1 | AttH-like | AttH-like duplication: two flattened beta-barrels of lipocalin-like topology are orthogonally packed with a pseudo twofold symmetry |
| b.61.5 | Dipeptidyl peptidase I (cathepsin C), exclusion domain | Streptavidin-like barrel, closed; n=8, S=10; meander |
| f.4.1 | OMPA-like forms (8,10) barrel ! | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| b.101.1 | Ribonuclease domain of colicin E3 | Ribonuclease domain of colicin E3 twisted meander beta-sheet of 6 strands |
| b.175.1 | FomD-like | FomD barrel-like barrel, closed; n=8, S=12; meander; similar topology to the AOC barrel-like fold (reversed to the lipocalin barrel topology) |
| d.198.3 | YjbR-like overall similar to the Type III secretory system chaperone subunits; different shape of the beta-sheet ! | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| b.61.7 | Extracellular hemoglobin linker subunit, receptor domain | Streptavidin-like barrel, closed; n=8, S=10; meander |
| b.25.1 | Osmotin, thaumatin-like protein has two smaller insertion domains ! | Osmotin, thaumatin-like protein sandwich; 11 strands in 2 sheets |
| b.42.1 | Cytokine | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| d.62.1 | Pepsin inhibitor-3 | Pepsin inhibitor-3 duplication of beta(3)-alpha(2) motif: meander beta sheets form barrel-like structure |
| 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.61.6 | YceI-like | Streptavidin-like barrel, closed; n=8, S=10; meander |
| b.63.1 | Oncogene products duplication: N- and C-terminal halves are related by pseudo dyad ! | Oncogene products barrel, closed; n=8, S=10; one overside connection |
| d.248.1 | Coproporphyrinogen III oxidase | Coproporphyrinogen III oxidase alpha-beta(6)-alpha(2)-beta-alpha(n); 3 layers alpha/beta/alpha; antiparallel sheet: order 1234567 |
| b.30.6 | V-region of surface antigen I/II (SA I/II, PAC) | Supersandwich sandwich; 18 strands in 2 sheets |
| 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.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 |
| d.110.1 | Profilin (actin-binding protein) alpha-beta(2)-alpha-beta(5)-alpha ! | Profilin-like core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha |
| b.113.1 | N-terminal domain of MutM-like DNA repair proteins | N-terminal domain of MutM-like DNA repair proteins pseudobarrel; capped on both ends by alpha-helices |
| d.342.1 | PH1570-like | PH1570-like duplication: two beta(4)-alpha structural repeats, related by pseudo twofold symmetry; two extra helices in the linker region; single 8-standed antiparallel beta-sheet, order: 12348765 |
| d.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 |
| 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 |
| d.82.5 | GK1464-like dimer; pseudo barrel; the true dimeric barrel formation requires swapping of the C-ternimal beta-alpha units ! | N domain of copper amine oxidase-like alpha-beta(5)-alpha; 2 layers: alpha/beta; meander antiparallel sheet |
| b.42.7 | DNA-binding protein LAG-1 (CSL) contains rudiment hairpin triplet lacking one hairpin ! | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| b.143.1 | NAC domain | NAC domain core: twisted 7-stranded beta-sheet (half-barrel) |
| d.35.1 | Heme-binding protein A (HasA) | Heme-binding protein A (HasA) beta-alpha-beta(6)-alpha(2); antiparallel sheet: order 165432 |
| 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 |
| b.177.1 | YmcC-like | YmcC-like 12-stranded meander beta-sheet, folded into a deformed beta-barrel; topological similarity to the LolA-like fold (scop_cf 89391) |
| b.61.8 | YdhA-like | Streptavidin-like barrel, closed; n=8, S=10; meander |
| d.82.4 | GAS2 domain-like this superfamily may include the most C-terminal domain of IBP39 ( | N domain of copper amine oxidase-like alpha-beta(5)-alpha; 2 layers: alpha/beta; meander antiparallel sheet |
| b.158.1 | BH3618-like | BH3618-like barrel, closed; n=7, S=10; meander |
| 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 |
| e.5.1 | Heme-dependent catalase-like | Heme-dependent catalase-like contains an (8,10) beta-barrel and an all-alpha domain |
| 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.42.4 | STI-like | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| d.34.1 | DNA-binding domain of Mlu1-box binding protein MBP1 has some topological similarity to the "winged helix" DNA-binding domain, to B1 and B5 domains of PheRS-beta (1PYS CH B) and to methyl-CpG-binding domain ! | DNA-binding domain of Mlu1-box binding protein MBP1 beta(4)-alpha(2)-beta(2)-alpha; antiparallel sheet: order 123465 |
| b.42.6 | MIR domain | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| b.173.1 | NifT/FixU-like | NifT/FixU barrel-like barrel, closed, n=6, S=10; meander |
| e.73.1 | CV3147-like | CV3147-like 2 domains; d1: [alpha/beta; 3 layers, a/b/a, mixed beta-sheet of 8 strands, order 12543876, strands 1, 7 and 8 are antiparallel to the rest]; d2: [pseudo beta-barrel of 6 strands, meander] |
| b.162.1 | At5g01610-like | At5g01610-like contains large meander beta-sheet bent into a scoop-like shape |
| b.169.1 | MFPT repeat-like | MFPT repeat-like consists of two similar pseudo barrel subdomains with structural similarity to a circularly permuted SAND domain (scop_fa 63764) |
| b.42.5 | Actin-crosslinking proteins | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| e.43.1 | Subunits of heterodimeric actin filament capping protein Capz | Subunits of heterodimeric actin filament capping protein Capz 3 domains: (1) protozoan pheromone-like alpha-helical bundle; (2) rubredoxin-like domain lacking metal-binding site; (3) alpha+beta heterodimerisation domain: alpha-beta(5)-alpha |
| e.32.1 | Phase 1 flagellin | Phase 1 flagellin 3 domains: (1) alpha-helical bundle; (2&3) complex all-beta folds |
| b.42.8 | AbfB domain | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| b.42.3 | Agglutinin this superfamily is distinct from the ricin B-like lectin superfamily ! | beta-Trefoil barrel, closed; n=6, S=12; and a hairpin triplet; meander ! duplication: has internal pseudo threefold symmetry |
| f.4.4 | OMPT-like forms (10,12) barrel ! | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| b.152.1 | Flagellar hook protein flgE | Flagellar hook protein flgE consists of two different domains; d1: [complex fold made of bifurcated beta-sheets]; d2 (inserted into d1): [beta-sandwich; 8 strands in 2 sheets] |
| f.4.5 | Autotransporter forms (12,14) barrel; contains a long alpha-helix running along the barrel axis ! | Transmembrane beta-barrels not a true fold, gathers together transmembrane barrels of different (n,S) |
| f.8.1 | Aerolisin/ETX pore-forming domain | Aerolisin/ETX pore-forming domain 3 domains: (1) alpha+beta; (2&3) all-beta |