| SCOP superfamily ID |
superfamiily description |
corresponding fold description |
| a.95.1 | Influenza virus matrix protein M1 superficially similar to membrane translocation domains ! | Influenza virus matrix protein M1 multihelical; consists of two different all-alpha subdomains, 4 helices each |
| a.29.8 | Bacteriocin immunity protein-like | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.59.1 | PAH2 domain | PAH2 domain 4 helices; open up-and-down bundle; binds alpha-helical peptides |
| f.1.1 | Colicin | Toxins' membrane translocation domains multi-helical domains of various folds which is thought to unfold in the membrane |
| a.211.1 | HD-domain/PDEase-like | HD-domain/PDEase-like multihelical; consists of two different alpha-helical bundles |
| a.226.1 | Her-1 | Her-1 multihelical; consists of two topologically similar alpha-helical bundles |
| a.65.1 | Annexin duplication: consists of four domains of the same fold ! | Annexin 5 helices; folded leaf, closed |
| a.77.1 | DEATH domain | DEATH domain 6 helices: closed bundle; greek-key; internal pseudo twofold symmetry |
| a.29.14 | Ta0600-like | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.56.1 | CO dehydrogenase ISP C-domain like contains 2Fe-2S cluster ! | CO dehydrogenase ISP C-domain like core: 4 helices, bundle |
| a.296.1 | PMT central region-like | PMT central region-like multihelical; comprises two four-helical bundles of different topologies and an irregular helical array packed against a small beta-sheet |
| a.29.12 | Nqo1C-terminal domain-like contains extra C-terminal helix that caps the bundle at one end and Fe4-S4 cluster at the other end ! | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.96.1 | DNA-glycosylase | DNA-glycosylase multihelical; consists of two all-alpha domains |
| a.234.1 | Hypothetical protein MPN330 | Hypothetical protein MPN330 multihelical; consists of three different 4-helical bundles |
| a.29.7 | Mob1/phocein common fold is elaborated with additional short helices; contains a zinc-binding site ! | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.222.1 | VPS9 domain | VPS9 domain multihelical; consist of two subdomains |
| a.209.1 | ADP-ribosylglycohydrolase | ADP-ribosylglycohydrolase multihelical; bundle |
| a.101.1 | Uteroglobin-like disulfide-linked dimer of two identical chains, 4 helices in each ! | Uteroglobin-like multihelical |
| 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 |
| a.123.1 | Nuclear receptor ligand-binding domain | Nuclear receptor ligand-binding domain multihelical; 3 layers or orthogonally packed helices |
| a.188.1 | PWI domain | PWI domain 4 helices; up-and-down bundle; topological similarity to the bromodomain-like and SAM domain-like folds |
| a.256.1 | RUN domain-like | RUN domain-like multihelical; 3-helical bundle similar to one half of the DEATH domain fold is flanked by two alpha-hairpins forming a four-helical bundle; the axes of the three-helical and four-helical bundles are aproximately orthogonal to each other |
| a.287.1 | TerB-like members of this superfamily probably related to the tellurite resistance protein TerB (Pfam 05099) of yet undetermined structure | TerB-like multihelical; contains two central helices; duplication: there are two three-helical repeats related by pseudo twofold symmetry |
| 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 |
| a.74.1 | Cyclin-like duplication: consists of two domains of this fold ! | Cyclin-like core: 5 helices; one helix is surrounded by the others |
| a.29.2 | Bromodomain | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.98.1 | R1 subunit of ribonucleotide reductase, N-terminal domain | R1 subunit of ribonucleotide reductase, N-terminal domain multihelical consists of two all-alpha subdomains ! subdomain 1 (residues 10-100) is a 4-helical bundle |
| c.64.1 | Pyruvate-ferredoxin oxidoreductase, PFOR, domain III | Pyruvate-ferredoxin oxidoreductase, PFOR, domain III 3 layers: a/b/a; mixed beta-sheet of 6 strands, order 231456; strand 3 is antiparallel to the rest |
| f.49.1 | Proton glutamate symport protein | Proton glutamate symport protein multihelical membrane protein; partial structural duplication in the C-terminal region; oligomeric state: trimer |
| 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 |
| a.87.1 | DBL homology domain (DH-domain) | DBL homology domain (DH-domain) multihelical; core: 5-helical bundle |
| a.127.1 | L-aspartase-like | L-aspartase-like multihelical, consists of three all-alpha domains |
| 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 |
| a.128.1 | Terpenoid synthases duplication: two metal-binding sites are related by a pseudo dyad that also relates helices C-F to helices G-J ! | Terpenoid synthases multihelical; core: 8 helices (C-J) are arranged in 2 parallel layers |
| a.45.1 | GST C-terminal domain-like this domains follows the thioredoxin-like N-terminal domain ! | GST C-terminal domain-like core: 4 helices; bundle, closed, left-handed twist; right-handed superhelix |
| a.257.1 | SipA N-terminal domain-like | SipA N-terminal domain-like multihelical; bundle; the last helix is buried inside the bundle |
| e.22.1 | Dehydroquinate synthase-like | Dehydroquinate synthase-like 2 domains: (1) alpha/beta of a Rossmann-fold topology, binds NAD (2) multihelical array |
| a.29.13 | Bacillus cereus metalloprotein-like Duplication: tandem repeat of two domains of this fold with similar sequences; binds a dimetal ion cluster between the repeats | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.89.1 | Methyl-coenzyme M reductase alpha and beta chain C-terminal domain | Methyl-coenzyme M reductase alpha and beta chain C-terminal domain multihelical bundle; contains buried central helix |
| a.29.16 | IVS-encoded protein-like IVS: Intervening sequence with conserved ORF in eubacterial 23S rRNA genes; forms a homopentamer with a toroid-shaped structure containing a tapered central channel | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.79.1 | NusB-like | NusB-like 6 helices: bundle; one central helix is surrounded by 5 others |
| a.118.5 | Bacterial muramidases | alpha-alpha superhelix multihelical; 2 (curved) layers: alpha/alpha; right-handed superhelix |
| f.1.3 | delta-Endotoxin (insectocide), N-terminal domain | Toxins' membrane translocation domains multi-helical domains of various folds which is thought to unfold in the membrane |
| f.51.1 | Rhomboid-like | Rhomboid-like 6 transmembrane helices |
| d.258.1 | Chorismate synthase, AroC | Chorismate synthase, AroC duplication: consists of two DCoH-like beta(2)-alpha-beta(2)-alpha structural repeats; 3 layers, beta/alpha/beta |
| a.140.5 | DNA-binding domain of EIN3-like decorated with additional structures ! | LEM/SAP HeH motif helix-extended loop-helix; parallel helices |
| d.228.1 | Replication modulator SeqA, C-terminal DNA-binding domain | Replication modulator SeqA, C-terminal DNA-binding domain consists of seven alpha-helices and three-stranded beta-sheet |
| d.381.1 | ATP12-like | ATP12-like contains an N-terminal beta-sheet that forms a beta-triangle structure; the remainder is a multihelical array of long and short helices |
| a.29.3 | Acyl-CoA dehydrogenase C-terminal domain-like multidomain flavoprotein; N-terminal domain is all-alpha; the middle domain is open (5,8) barrel ! | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.103.1 | Citrate synthase | Citrate synthase multihelical; consists of two all-alpha domains |
| a.277.1 | TAFH domain-like | TAFH domain-like 5 helices; folded leaf, closed |
| d.120.1 | Cytochrome b5-like heme/steroid binding domain | Cytochrome b5-like heme/steroid binding domain beta-alpha-beta(2)-alpha(1,2)-(beta)-alpha(2)-beta; 3 layers: a/b/a; antiparallel beta-sheet, order: 1532(4) |
| 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 |
| a.288.1 | UraD-Like | UraD-like multihelical; irregular array of long and short helices |
| a.192.1 | N-terminal domain of adenylylcyclase associated protein, CAP | N-terminal domain of adenylylcyclase associated protein, CAP 6 helices: bundle; left-handed twist, up-and-down topology |
| e.18.1 | HydB/Nqo4-like | HydB/Nqo4-like 3 domains: (1) all-alpha; (2&3) alpha+beta |
| a.289.1 | Sec63 N-terminal domain-like | Sec63 N-terminal domain-like multihelical; consists of two helical subdomains |
| a.60.8 | HRDC-like | SAM domain-like 4-5 helices; bundle of two orthogonally packed alpha-hairpins; involved in the interactions with DNA and proteins |
| f.1.5 | Exotoxin A, middle domain | Toxins' membrane translocation domains multi-helical domains of various folds which is thought to unfold in the membrane |
| f.13.1 | Family A G protein-coupled receptor-like | Family A G protein-coupled receptor-like core: up-and-down bundle of seven transmembrane helices tilted 20 degrees with respect to the plane of the membrane |
| 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 |
| a.29.9 | LemA-like helices 2 and 3 are shorther than helices 1 and 4 ! | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| 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] |
| a.160.1 | PAP/OAS1 substrate-binding domain this domain follows the catalytic nucleotidyltransferase domain ! | PAP/OAS1 substrate-binding domain core: 5-helical bundle; up-and-down; right-handed twist |
| d.334.1 | IlvD/EDD N-terminal domain-like | IlvD/EDD N-terminal domain-like contains a large cluster of helices and a mixed beta-sheet of 4 strands; order 2134, strands 3 and 4 are parallel |
| a.104.1 | Cytochrome P450 | Cytochrome P450 multihelical |
| a.131.1 | Peridinin-chlorophyll protein duplication: consists of two 8-helical repeats ! | Peridinin-chlorophyll protein multihelical: forms a boat-shaped protein shell around cofactors |
| a.60.6 | DNA polymerase beta, N-terminal domain-like contains one classic and one pseudo HhH motifs ! | SAM domain-like 4-5 helices; bundle of two orthogonally packed alpha-hairpins; involved in the interactions with DNA and proteins |
| 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 |
| a.185.1 | Gametocyte protein Pfg27 duplication: contains two structural repeats of four helices each ! | Gametocyte protein Pfg27 multihelical; bundle |
| a.29.6 | Plant invertase/pectin methylesterase inhibitor contains a short alpha-hairpin at the N-terminal extension ! | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.184.1 | TorD-like | TorD-like multihelical; bundle |
| a.219.1 | Hypothetical protein YhaI oligomerizes via extra N-terminal helix forming trimeric coil-coiled ! | Hypothetical protein YhaI core: 5 helices; orthogonal array; folding similarity to the TipA-S domain (1ny9) |
| a.280.1 | RbcX-like | RbcX-like 5 helices per subunit; irregular array of short and long helices; swapping of the C-terminal helices in the dimer |
| a.29.11 | PA2201 N-terminal domain-like | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.118.24 | Pseudo ankyrin repeat-like contains three helices per turn of the superhelix ! | alpha-alpha superhelix multihelical; 2 (curved) layers: alpha/alpha; right-handed superhelix |
| f.44.1 | Ammonium transporter | Ammonium transporter 11 transmembrane helices; duplication: consist of 2 structural repeats of five helices each plus extra C-terminal helix |
| a.163.1 | Crustacean CHH/MIH/GIH neurohormone | Crustacean CHH/MIH/GIH neurohormone 4 helices; irregular array, disulfide-linked |
| a.29.15 | DsbB-like contains an extra helix in a long loop between helices 3 and 4 | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.72.1 | Functional domain of the splicing factor Prp18 | Functional domain of the splicing factor Prp18 core: 5 helices; bundle |
| a.54.1 | Domain of early E2A DNA-binding protein, ADDBP this domain is the first in the fragment of known structure ! | Domain of early E2A DNA-binding protein, ADDBP 4 helices; bundle, partly opened |
| a.281.1 | YheA/YmcA-like | YheA-like 5 helices; "kinked" antiparallel coiled coil; forms flexible oligomeric assemblies via two different dimerisation interfaces |
| a.60.13 | Putative methyltransferase TM0872, insert domain | SAM domain-like 4-5 helices; bundle of two orthogonally packed alpha-hairpins; involved in the interactions with DNA and proteins |
| f.35.1 | Multidrug efflux transporter AcrB transmembrane domain | Multidrug efflux transporter AcrB transmembrane domain 12 transmembrane helices; duplication: the N- and C-terminal halves of the whole proteins are structurally similar |
| e.45.1 | Antivirulence factor | Antivirulence factor contains a helical bundle with a buried helix and an alpha+beta insert domain |
| a.203.1 | Putative anticodon-binding domain of alanyl-tRNA synthetase (AlaRS) | Putative anticodon-binding domain of alanyl-tRNA synthetase (AlaRS) multihelical; consists of two all-alpha subdomains |
| a.1.2 | alpha-helical ferredoxin contains two Fe4-S4 clusters ! | Globin-like core: 6 helices; folded leaf, partly opened |
| a.294.1 | Tex N-terminal region-like | Tex N-terminal region-like multihelical; irregular array of long and short helices; can be divided into several subdomains |
| a.60.10 | Enzyme I of the PEP:sugar phosphotransferase system HPr-binding (sub)domain | SAM domain-like 4-5 helices; bundle of two orthogonally packed alpha-hairpins; involved in the interactions with DNA and proteins |
| a.265.1 | Fic-like | Fic-like multihelical; one central helix is surrounded by seven helices |
| a.60.11 | Hypothetical protein YjbJ | SAM domain-like 4-5 helices; bundle of two orthogonally packed alpha-hairpins; involved in the interactions with DNA and proteins |
| f.24.1 | Cytochrome c oxidase subunit I-like | Cytochrome c oxidase subunit I-like 12 transmembrane helices in an approximate threefold rotational symmetric arrangement |
| a.66.1 | Transducin (alpha subunit), insertion domain this domain interrupts the G-protein common fold ! | Transducin (alpha subunit), insertion domain 5 helices; folded leaf |
| a.232.1 | RNA-binding protein She2p | RNA-binding protein She2p 5 helices; bundle, closed, left-handed twist; topological similarity to the middle domain of the L-aspartase-like fold (scop_cf 48556) |
| a.29.5 | alpha-ketoacid dehydrogenase kinase, N-terminal domain | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| c.154.1 | CdCA1 repeat-like | CdCA1 repeat-like contains two parallel beta-strands of four strands each; the sheets contact each other with edges at a right angle |
| d.276.1 | Hypothetical protein yfbM | Hypothetical protein yfbM beta-alpha(2)-beta-alpha(2)-beta(2)-alpha(n)-beta; 3 layers: a/b/a; antiparallel beta-sheet, order: 21543 |
| a.63.1 | Apolipophorin-III | Apolipophorin-III 5 helices; bundle, closed, left-handed twist |
| f.54.1 | SNF-like | SNF-like 12 transmembrane helices; duplication: consists of two structurally similar halves |
| a.216.1 | I/LWEQ domain | I/LWEQ domain 5 helices; bundle, closed, left-handed twist |
| a.224.1 | Glycolipid transfer protein, GLTP | Glycolipid transfer protein, GLTP multihelical; 2 layers or orthogonally packed helices |
| f.38.1 | MFS general substrate transporter | MFS general substrate transporter 12 transmembrane helices; duplication: the N- and C-terminal halves are structurally similar |
| a.119.1 | Lipoxigenase | Lipoxigenase multihelical ! large nearly all-alpha domain |
| e.26.1 | Prismane protein-like | Prismane protein-like 3 domains: (1) spectrin repeat-like 3-helical bundle; (2 and 3) alpha/beta: Rossmann-fold topology |
| a.120.1 | gene 59 helicase assembly protein | gene 59 helicase assembly protein multihelical; consists of two all-alpha subdomains |
| a.7.12 | PhoU-like duplication: consists of two sequence each repeats adopting this fold ! | Spectrin repeat-like 3 helices; bundle, closed, left-handed twist; up-and-down |
| a.246.3 | FLJ32549 domain-like | Hyaluronidase domain-like 5 helices; bundle, closed, left-handed twist; up-and-down (meander) topology |
| a.8.7 | Typo IV secretion system protein TraC | immunoglobulin/albumin-binding domain-like 3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold |
| 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 |
| a.27.1 | Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases core: 4 helices; bundle; one loop crosses over one side of the bundle |
| f.37.1 | ABC transporter transmembrane region | ABC transporter transmembrane region multihelical; complex architecture with several transmembrane helices |
| a.191.1 | Methenyltetrahydrofolate cyclohydrolase-like | Methenyltetrahydrofolate cyclohydrolase-like 5 helices; bundle, closed, left-handed twist |