| SCOP superfamily ID |
superfamiily description |
corresponding fold description |
| 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 |
| f.1.1 | Colicin | Toxins' membrane translocation domains multi-helical domains of various folds which is thought to unfold in the membrane |
| a.80.1 | post-AAA+ oligomerization domain-like associated with N-terminal domain from the AAA+ family of P-loop hydrolases ! | post-AAA+ oligomerization domain-like core: 5 helices: bundle |
| a.39.1 | EF-hand Duplication: consists of two EF-hand units: each is made of two helices connected with calcium-binding loop ! | EF Hand-like core: 4 helices; array of 2 hairpins, opened |
| a.77.1 | DEATH domain | DEATH domain 6 helices: closed bundle; greek-key; internal pseudo twofold symmetry |
| g.45.1 | ArfGap/RecO-like zinc finger | ArfGap/RecO-like zinc finger zinc-bound alpha+beta motif |
| a.29.8 | Bacteriocin immunity protein-like | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| 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.103.1 | Citrate synthase | Citrate synthase multihelical; consists of two all-alpha domains |
| a.226.1 | Her-1 | Her-1 multihelical; consists of two topologically similar alpha-helical bundles |
| 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.69.4 | BH3980-like | Left-handed superhelix core: 4-5 helices; bundle; left-handed superhelix |
| 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 |
| 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 |
| 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 |
| d.144.1 | Protein kinase-like (PK-like) shares functional and structural similarities with the ATP-grasp fold and PIPK ! | Protein kinase-like (PK-like) consists of two alpha+beta domains, C-terminal domain is mostly alpha helical |
| a.8.9 | Coronavirus NSP7-like | immunoglobulin/albumin-binding domain-like 3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold |
| a.211.1 | HD-domain/PDEase-like | HD-domain/PDEase-like multihelical; consists of two different alpha-helical bundles |
| a.8.1 | Bacterial immunoglobulin/albumin-binding domains | immunoglobulin/albumin-binding domain-like 3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold |
| a.260.1 | Rhabdovirus nucleoprotein-like | Rhabdovirus nucleoprotein-like multihelical, consist of two helical domains; each domain contains a buried helix |
| a.24.28 | VPS28 C-terminal domain-like | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| 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 |
| a.69.3 | 1-deoxy-D-xylulose-5-phosphate reductoisomerase, C-terminal domain | Left-handed superhelix core: 4-5 helices; bundle; left-handed superhelix |
| e.3.1 | beta-lactamase/transpeptidase-like | beta-lactamase/transpeptidase-like contains a cluster of helices and an alpha+beta sandwich |
| d.178.1 | Aromatic aminoacid monoxygenases, catalytic and oligomerization domains | Aromatic aminoacid monoxygenases, catalytic and oligomerization domains unusual fold |
| 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 |
| a.206.1 | P40 nucleoprotein | P40 nucleoprotein multihelical; consists of two subdomains |
| a.24.4 | Hemerythrin-like | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| d.2.1 | Lysozyme-like | Lysozyme-like common alpha+beta motif for the active site region |
| a.96.1 | DNA-glycosylase | DNA-glycosylase multihelical; consists of two all-alpha domains |
| 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.285.1 | MtlR-like | MtlR-like multihelical; 8-helical up-and-down bundle |
| a.24.13 | Domain of the SRP/SRP receptor G-proteins | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| c.70.1 | Nucleoside hydrolase | Nucleoside hydrolase core: 3 layers, a/b/a ; mixed beta-sheet of 8 strands, order 32145687; strand 7 is antiparallel to the rest |
| a.5.2 | UBA-like | RuvA C-terminal domain-like 3 helices; bundle, right-handed twist |
| 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.146.1 | Telomeric repeat binding factor (TRF) dimerisation domain | Telomeric repeat binding factor (TRF) dimerisation domain multihelical; can be divided into an alpha-alpha superhelix domain and a long alpha-hairpin dimerization domain |
| 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 |
| d.260.1 | Suppressor of Fused, N-terminal domain | Suppressor of Fused, N-terminal domain unusual fold; bifurcated beta-sheet; left-handed beta-alpha-beta unit |
| d.336.1 | YbiA-like | YbiA-like consists of six alpha-helices and two two-stranded beta-sheets |
| a.152.1 | AhpD-like probable biological unit contains six domains of this fold arranged with 32 symmetry ! | AhpD-like multihelical; contains 4-helical bundle and 2-helical arm |
| a.94.1 | Ribosomal protein L19 (L19e) | Ribosomal protein L19 (L19e) multihelical; consists of two different 3-helical domains connected by a long, partly helical linker |
| a.4.14 | KorB DNA-binding domain-like contains HTH motif in the common core; also contains extra N-terminal helix and C-terminal subdomain of 4 helices (left-handed superhelix) ! | DNA/RNA-binding 3-helical bundle core: 3-helices; bundle, closed or partly opened, right-handed twist; up-and down |
| a.24.10 | Histidine-containing phosphotransfer domain, HPT domain contains additional, fifth helix at the N-terminus ! | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.11.2 | Second domain of FERM | Acyl-CoA binding protein-like core: 3 helices; bundle, closed, left-handed twist; up-and-down |
| a.132.1 | Heme oxygenase-like duplication: contains two structural repeats of 3-helical motif ! | Heme oxygenase-like multihelical; bundle |
| a.174.1 | Double Clp-N motif duplication: contains two structural repeats of 4-helical motif ! | Double Clp-N motif multihelical; array |
| 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 |
| 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 |
| a.91.1 | Regulator of G-protein signaling, RGS | Regulator of G-protein signaling, RGS multihelical; consists of two all-alpha subdomains ! contains a 4-helical bundle with left-handed twist and up-and-down topology |
| a.126.1 | Serum albumin-like | Serum albumin-like multihelical; one domain consists of two similar disulfide-linked subdomains |
| c.112.1 | Glycerol-3-phosphate (1)-acyltransferase some topological similarity to the dihydrofolate reductase fold ! | Glycerol-3-phosphate (1)-acyltransferase 3 layers: a/b/a; mixed beta-sheet of 9 strands, order 918736452; strands 1, 2 and 8 are antiparallel to the rest |
| a.69.1 | C-terminal domain of alpha and beta subunits of F1 ATP synthase | Left-handed superhelix core: 4-5 helices; bundle; left-handed superhelix |
| a.29.2 | Bromodomain | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| 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 |
| a.60.2 | RuvA domain 2-like duplication: contains two helix-hairpin-helix (HhH) motifs ! | SAM domain-like 4-5 helices; bundle of two orthogonally packed alpha-hairpins; involved in the interactions with DNA and proteins |
| a.93.1 | Heme-dependent peroxidases | Heme-dependent peroxidases multihelical; consists of two all-alpha domains |
| e.75.1 | flu NP-like | Flu NP-like consists of alpha+beta and all-alpha domains; biological unit is a trimer |
| a.25.2 | Cobalamin adenosyltransferase-like crossover loop goes across a different side of the 4-helical bundle; no internal metal-binding site ! | Ferritin-like core: 4 helices; bundle, closed, left-handed twist; 1 crossover connection |
| a.127.1 | L-aspartase-like | L-aspartase-like multihelical, consists of three all-alpha domains |
| 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.173.1 | Poly A polymerase C-terminal region-like the neck subdomain is an alpha-alpha superhelix; the tail subdomain is similar to the RuvA C-terminal domain-like ! | Poly A polymerase C-terminal region-like multihelical; can be divided into three subdomains (neck, body and tail) |
| a.28.1 | ACP-like | Acyl carrier protein-like 4 helices, bundle; helix 3 is shorter than others; up-and-down |
| 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 |
| 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.24.20 | Colicin D immunity protein | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| 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 |
| 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.29.14 | Ta0600-like | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| b.80.6 | Stabilizer of iron transporter SufD superhelix turns are made of two very long strands each ! | Single-stranded right-handed beta-helix superhelix turns are made of parallel beta-strands and (short) turns |
| a.277.1 | TAFH domain-like | TAFH domain-like 5 helices; folded leaf, closed |
| a.69.2 | Ypt/Rab-GAP domain of gyp1p | Left-handed superhelix core: 4-5 helices; bundle; left-handed superhelix |
| 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 |
| a.40.3 | Hook domain | CH domain-like core: 4 helices: bundle |
| c.23.17 | Precorrin-8X methylmutase CbiC/CobH fold elaborated with additional structures ! | Flavodoxin-like 3 layers, a/b/a; parallel beta-sheet of 5 strand, order 21345 |
| e.18.1 | HydB/Nqo4-like | HydB/Nqo4-like 3 domains: (1) all-alpha; (2&3) alpha+beta |
| a.199.1 | YgfB-like | YgfB-like multihelical; consists of two tightly associated 3-helical bundles with different twists |
| a.5.6 | Double-stranded DNA-binding domain | RuvA C-terminal domain-like 3 helices; bundle, right-handed twist |
| e.10.1 | Prokaryotic type I DNA topoisomerase duplication: the protein chain passing through the domains 2-4 makes two structural repeats ! The active site is formed by the toprim and "winged helix" domains (domains 1 and 4); these two domains are also found in the type II topoisomerase (DNA gyrase A) and in the alpha subunit of topoisomerase IV ! | Prokaryotic type I DNA topoisomerase 4 domains: (1) Toprim alpha/beta; (2&4) "winged helix"-like; (3) barrel: n=6, S=8 |
| a.101.1 | Uteroglobin-like disulfide-linked dimer of two identical chains, 4 helices in each ! | Uteroglobin-like multihelical |
| d.148.1 | Hect, E3 ligase catalytic domain | Hect, E3 ligase catalytic domain consists of two alpha+beta domains; the N-terminal domain is array of helices and beta-hairpins; the C-terminal domain is an a/b sandwich with one left-handed beta-alpha(n)-beta unit; conformational flexibility of domain orientation |
| d.210.1 | Argininosuccinate synthetase, C-terminal domain | Argininosuccinate synthetase, C-terminal domain unusual fold |
| d.164.1 | SMAD MH1 domain | SMAD MH1 domain consists of four alpha-helices and three beta-ribbons |
| a.78.1 | GntR ligand-binding domain-like | GntR ligand-binding domain-like core: 6 helices: closed bundle; greek-key; internal pseudo twofold symmetry |
| 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 |
| a.279.1 | Jann4075-like | Jann4075-like core: 5 helices; the C-terminal helix is surrounded by the others; similarity to some EF-hand domains |
| a.24.29 | TM1646-like | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.182.1 | GatB/YqeY motif | GatB/YqeY motif multihelical; consists of two different alpha-helical bundles (4-helical and 3-helical) |
| 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 |
| 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 |
| c.1.19 | Cobalamin (vitamin B12)-dependent enzymes | 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.177.1 | Sigma2 domain of RNA polymerase sigma factors | Sigma2 domain of RNA polymerase sigma factors multihelical; consists of a conserved 4-helical core and a variable insert subdomain |
| a.23.2 | Diol dehydratase, gamma subunit contains irregular N-terminal subdomain ! | Open three-helical up-and-down bundle core: 3 helices; bundle, open |
| a.73.1 | Retrovirus capsid protein, N-terminal core domain | Retrovirus capsid protein, N-terminal core domain core: 5 helices; bundle |
| a.12.1 | Kix domain of CBP (creb binding protein) | Kix domain of CBP (creb binding protein) 3 helices; bundle, partly opened |
| 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 |
| a.268.1 | PTPA-like | PTPA-like multihelical |
| a.142.1 | PTS-regulatory domain, PRD duplication: consists of two domains of this fold ! | PTS-regulatory domain, PRD core: 4 helices; bundle, closed, right-handed twist; 1 crossover connection |
| a.5.1 | DNA helicase RuvA subunit, C-terminal domain possibly related to UBA-like domains ! | RuvA C-terminal domain-like 3 helices; bundle, right-handed twist |
| a.24.5 | TMV-like viral coat proteins | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.24.16 | Nucleotidyltransferase substrate binding subunit/domain | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| 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 |
| d.379.1 | Taf5 N-terminal domain-like | Taf5 N-terminal domain-like multihelical cluster with a C-terminal beta-alpha(2)-beta motif; one central buried helix; parallel beta-ribbon |
| 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.240.1 | BSD domain-like | BSD domain-like core: 3 helices; triangular array; the extra N-terminal and C-terminal helices form a coiled coil structure |
| 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 |
| a.263.1 | DNA terminal protein | DNA terminal protein multihelical, open array; contains the C-terminal four-helical bundle, left-handed superhelix |
| a.5.7 | post-HMGL domain-like | RuvA C-terminal domain-like 3 helices; bundle, right-handed twist |
| d.66.1 | Alpha-L RNA-binding motif common motif in otherwise different folds ! | Alpha-L RNA-binding motif alpha(2)-beta(2)-loop-beta; 2 layers: alpha/beta |
| 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.110.1 | Aldehyde ferredoxin oxidoreductase, C-terminal domains | Aldehyde ferredoxin oxidoreductase, C-terminal domains multihelical; consists of two all-alpha domains |
| 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.168.1 | SopE-like GEF domain | SopE-like GEF domain multihelical; consists of two all-alpha subdomains each containing a 3-helical bundle with right-handed twist |
| a.251.1 | Phage replication organizer domain DNA binding induces further oligomerization ! | Phage replication organizer domain 6 helices, homodimer of 3-helical domains |
| a.257.1 | SipA N-terminal domain-like | SipA N-terminal domain-like multihelical; bundle; the last helix is buried inside the bundle |
| 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 |
| 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 |
| a.275.1 | DnaD domain-like | DnaD domain-like 4 helices; bundle, right-handed twist; left-handed superhelix |
| a.208.1 | DhaL-like | DhaL-like multihelical; bundle |
| a.97.1 | An anticodon-binding domain of class I aminoacyl-tRNA synthetases | An anticodon-binding domain of class I aminoacyl-tRNA synthetases multihelical; consists of two all-alpha domains |
| a.195.1 | YutG-like | YutG-like core: 6 helices; bundle; one central helix is surrounded by 5 others |
| 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 |
| c.77.1 | Isocitrate/Isopropylmalate dehydrogenase-like the constituent families form similar dimers ! | Isocitrate/Isopropylmalate dehydrogenase-like consists of two intertwined (sub)domains related by pseudo dyad; duplication ! 3 layers: a/b/a; single mixed beta-sheet of 10 strands, order 213A945867 (A=10); strands from 5 to 9 are antiparallel to the rest |
| a.225.1 | Hypothetical protein MG354 | Hypothetical protein MG354 multihelical bundle; contains buried central helix |
| a.62.1 | Hepatitis B viral capsid (hbcag) | Hepatitis B viral capsid (hbcag) 5 helices; array; two long helices form a hairpin that dimerizes into a 4-helical bundle |
| 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 |
| a.24.3 | Cytochromes Heme-containing proteins ! | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| 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 |
| a.24.11 | Bacterial GAP domain contains extra helices in the loops at one end of the bundle ! | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.68.1 | Wiscott-Aldrich syndrome protein, WASP, C-terminal domain | Wiscott-Aldrich syndrome protein, WASP, C-terminal domain 5 helices; irregular array; left-handed superhelix |
| 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 |
| a.213.1 | DinB/YfiT-like putative metalloenzymes contains metal-binding site on the bundle surface surrounded by loops ! | DinB/YfiT-like putative metalloenzymes core: 4 helices; bundle, closed, left-handed twist; an unusual topology with a higher contact order |
| e.37.1 | Siroheme synthase middle domains-like | Siroheme synthase middle domains-like 2 domains: (1) alpha+beta, 2 layers; (2) 3/4-helical bundle, right-handed twist, left-handed superhelix |
| 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 |
| 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 |
| f.59.1 | Cation efflux protein transmembrane domain-like | Cation efflux protein transmembrane domain-like 6 transmembrane helices, bundle |
| a.249.1 | YfmB-like | YfmB-like 5 helices, array; buried N-terminal helix; some topological similarity (circular permutation?) to the Nucleotidyltransferase substrate binding subunit/domain (scop_sf 81593) |
| 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 |
| d.262.1 | NinB | NinB unusual fold; intertwined dimer; consists of two different structural domains |
| a.235.1 | ATP-dependent DNA ligase DNA-binding domain | ATP-dependent DNA ligase DNA-binding domain multihelical; duplication: contains two intertwined structural repeats related by pseudo twofold symmetry |
| a.8.2 | Plasmid maintenance system epsilon/zeta, antidote epsilon subunit | immunoglobulin/albumin-binding domain-like 3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold |
| 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.24.24 | Domain from hypothetical 2610208m17rik protein | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.149.1 | RNase III domain-like | RNase III domain-like core: 5 helices; one helix is surrounded by the others |
| a.144.1 | PABC (PABP) domain | PABP domain-like 4 helices; an orthogonal array |
| a.59.1 | PAH2 domain | PAH2 domain 4 helices; open up-and-down bundle; binds alpha-helical peptides |
| a.29.11 | PA2201 N-terminal domain-like | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| a.5.4 | Elongation factor TFIIS domain 2 | RuvA C-terminal domain-like 3 helices; bundle, right-handed twist |
| a.121.1 | Tetracyclin repressor-like, C-terminal domain | Tetracyclin repressor-like, C-terminal domain multihelical; interlocked (homo)dimer |
| b.34.4 | Electron transport accessory proteins | SH3-like barrel barrel, partly opened; n*=4, S*=8; meander ! the last strand is interrupted by a turn of 3-10 helix |
| 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 |
| a.48.5 | PG0775 C-terminal domain-like | N-cbl like 4 helices; bundle, left-handed twist; left-handed superhelix |
| 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.19.1 | Fertilization protein | Fertilization protein core: 3 helices; bundle, closed, right-handed twist; up-and-down |
| a.290.1 | PSPTO4464-like | PSPTO4464-like multihelical; consists of two subdomains at the ends of a long connecting helix |
| a.156.1 | S13-like H2TH domain contains a helix-two turns-helix (H2TH) motif ! | S13-like H2TH domain core: 3-4 helices |
| a.8.6 | Staphylocoagulase duplication: consists of two domains of this fold ! | immunoglobulin/albumin-binding domain-like 3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold |
| 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.200.1 | Hypothetical protein MTH393 | Hypothetical protein MTH393 multihelical; consists of two all-alpha subdomains; dimer |
| d.370.1 | BTG domain-like | BTG domain-like alpha(2)-beta-alpha(2)-beta(3); four-helical bundle, capped at one end by an antiparallel beta-sheet, order:1234 |
| a.6.1 | Putative DNA-binding domain | Putative DNA-binding domain core: 3 helices; architecture is similar to that of the "winged helix" fold but topology is different |
| a.24.12 | Outer surface protein C (OspC) | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.25.1 | Ferritin-like contains bimetal-ion centre in the middle of the bundle ! | Ferritin-like core: 4 helices; bundle, closed, left-handed twist; 1 crossover connection |
| a.118.14 | FliG fragmented superhelix; consist of 3/4-helical motifs and connecting helices ! | alpha-alpha superhelix multihelical; 2 (curved) layers: alpha/alpha; right-handed superhelix |
| a.229.1 | Hypothetical protein YqbG | Hypothetical protein YqbG core: 4 helices; bundle, right-handed twist; left-handed superhelix |
| a.269.1 | FtsH protease domain-like contains zincin-like ( | FtsH protease domain-like array of 6 helices and a 2-stranded beta-ribbon |
| 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 |
| a.104.1 | Cytochrome P450 | Cytochrome P450 multihelical |
| a.202.1 | Superantigen MAM | Superantigen MAM multihelical; consists of two different alpha-helical bundles |
| a.220.1 | Hypothetical protein At3g22680 | Hypothetical protein At3g22680 5 helices; array; probable biological unit is a homodimer |
| 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 |
| d.279.1 | YggX-like | YggX-like beta(2)-alpha(3); contains zinc-less 'zinc finger'-like fold (scop_cf 57715; see also scop_cf 64375) |
| a.75.1 | Ribosomal protein S7 | Ribosomal protein S7 core: 5 helices; contains one more helix and a beta-hairpin outside the core |
| f.56.1 | MAPEG domain-like | MAPEG domain-like 4 helices, bundle; left-handed superhelix |
| 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.87.1 | DBL homology domain (DH-domain) | DBL homology domain (DH-domain) multihelical; core: 5-helical bundle |
| a.170.1 | BRCA2 helical domain | BRCA2 helical domain multihelical; contains a 3-helical bundle surrounded by several shorter helices |
| 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 |
| e.44.1 | 2-methylcitrate dehydratase PrpD | 2-methylcitrate dehydratase PrpD consists of an all-alpha and alpha+beta domains |
| g.78.1 | YAP1 redox domain | YAP1 redox domain bipartite cysteine-rich all-alpha domain; a single helix in the N-terminal part (chain A) is linked by disulfides to the C-terminal part (chain B) [3-helical bundle of the RuvA C-terminal domain-like fold (scop_cf 46928) |
| d.202.1 | Transcription factor NusA, N-terminal domain | Transcription factor NusA, N-terminal domain alpha-beta(3)-alpha-beta-alpha; bifurcated coiled beta-sheet |
| 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] |
| 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.120.1 | gene 59 helicase assembly protein | gene 59 helicase assembly protein multihelical; consists of two all-alpha subdomains |
| a.24.15 | FAD-dependent thiol oxidase | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.24.7 | FKBP12-rapamycin-binding domain of FKBP-rapamycin-associated protein (FRAP) | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| f.51.1 | Rhomboid-like | Rhomboid-like 6 transmembrane helices |
| a.163.1 | Crustacean CHH/MIH/GIH neurohormone | Crustacean CHH/MIH/GIH neurohormone 4 helices; irregular array, disulfide-linked |
| a.24.26 | YppE-like flattened bundle at one end with helices 2 and coming in contact and separating helices 1 and 3 ! | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.57.1 | Protein HNS-dependent expression A; HdeA overall fold is similar to the fold of N-terminal subdomain of the GluRS anticodon-binding domain (1GLN) ! | Protein HNS-dependent expression A; HdeA 4 helices; the three last helices form a bundle similar to that of the RuvA C-domain |
| d.48.1 | RecA protein, C-terminal domain | Anti-LPS factor/recA domain alpha-beta(3)-alpha(2); 2 layers, alpha/beta |
| 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 |
| 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 |
| f.22.1 | ABC transporter involved in vitamin B12 uptake, BtuC | ABC transporter involved in vitamin B12 uptake, BtuC multihelical; complex architecture with several transmembrane helices |
| a.258.1 | PG0816-like | PG0816-like multihelical; comprises two helical bundles, both are topologically similar to the RuvA C-terminal domain-like fold (scop_cf 46928) |
| a.24.18 | Oxygen-evolving enhancer protein 3, | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| 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 |
| a.8.4 | Heat shock protein 70kD (HSP70), C-terminal subdomain | immunoglobulin/albumin-binding domain-like 3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold |
| 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.115.1 | A virus capsid protein alpha-helical domain this domain is interrupted by a jelly-roll beta-sandwich domain ! | A virus capsid protein alpha-helical domain multihelical; three-helical bundle in the core is surrounded by non-conserved helices |
| 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 |
| a.119.1 | Lipoxigenase | Lipoxigenase multihelical ! large nearly all-alpha domain |
| a.72.1 | Functional domain of the splicing factor Prp18 | Functional domain of the splicing factor Prp18 core: 5 helices; bundle |
| a.130.1 | Chorismate mutase II | Chorismate mutase II multihelical; core: 6 helices, bundle |
| e.48.1 | Major capsid protein VP5 | Major capsid protein VP5 large protein without apparent domain division |
| 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.24.17 | Group V grass pollen allergen | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.118.5 | Bacterial muramidases | alpha-alpha superhelix multihelical; 2 (curved) layers: alpha/alpha; right-handed superhelix |
| a.234.1 | Hypothetical protein MPN330 | Hypothetical protein MPN330 multihelical; consists of three different 4-helical bundles |
| a.40.2 | X-Prolyl dipeptidyl aminopeptidase PepX, N-terminal domain | CH domain-like core: 4 helices: bundle |
| a.24.9 | alpha-catenin/vinculin-like | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.239.1 | ChaB-like | ChaB-like 3 helices, the first one is shorter than the other two; bundle, capped by a small, C-terminal beta-hairpin |
| a.288.1 | UraD-Like | UraD-like multihelical; irregular array of long and short helices |
| a.24.22 | Nickel-containing superoxide dismutase, NiSOD | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.113.1 | DNA repair protein MutS, domain III | DNA repair protein MutS, domain III multihelical; consists of 2 all-alpha subdomains |
| d.165.1 | Ribosome inactivating proteins (RIP) | Ribosome inactivating proteins (RIP) contains mixed beta-sheet |
| a.24.19 | Flagellar export chaperone FliS can form closed, open and helix-swapped bundles ! | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| c.143.1 | CofD-like | CofD-like 3 layers: a/b/a, parallel beta-sheet of 7 strands, order 3214567; topological similarity to the CobT-like fold (scop_cf 52732) |
| a.48.1 | N-terminal domain of cbl (N-cbl) | N-cbl like 4 helices; bundle, left-handed twist; left-handed superhelix |
| d.128.1 | Glutamine synthetase/guanido kinase | Glutamine synthetase/guanido kinase duplication: common core consists of two beta-alpha-beta2-alpha repeats |
| a.71.2 | Helical domain of Sec23/24 | ERP29 C domain-like 5 helices; bundle |
| 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.5.10 | FGAM synthase PurL, linker domain | RuvA C-terminal domain-like 3 helices; bundle, right-handed twist |
| a.29.5 | alpha-ketoacid dehydrogenase kinase, N-terminal domain | Bromodomain-like 4 helices; bundle; minor mirror variant of up-and-down topology |
| 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.295.1 | AGR C 984p-like | AGR C 984p-like multihelical, consists of two subdomains; duplication: there are two 5-helical structural repeats, one in each subdomain |
| a.90.1 | Transcription factor STAT-4 N-domain | Transcription factor STAT-4 N-domain multihelical; can be divided into two subdomains |
| f.20.1 | Clc chloride channel | Clc chloride channel core: 18 transmembrane helices |
| a.244.1 | EF2947-like | EF2947-like 4 helices; "diamond" array; duplication: N-terminal and C-terminal pairs of helices are related by pseudo dyad |
| 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 |
| f.48.1 | OmpH-like | OmpH-like trimer; one subunit consists of an alpha/beta oligomerization subdomain [3-stranded parallel beta-sheet, order 213], and an antiparallel coiled coil |
| 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.70.2 | AF1862-like probable biological unit is a hexamer | ATPD N-terminal domain-like core: 5 helices; bundle |
| a.24.25 | TrmE connector domain | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.8.10 | Vng1086c-like homotetramer; comprises two dimers similar to the antidote epsilon subunit dimer ! | immunoglobulin/albumin-binding domain-like 3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold |
| 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.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 |
| c.39.1 | Nicotinate mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase (CobT) | Nicotinate mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase (CobT) 3 layers: a/b/a, parallel beta-sheet of 7 strands, order 3214567 |
| a.5.3 | CRAL/TRIO N-terminal domain | RuvA C-terminal domain-like 3 helices; bundle, right-handed twist |
| a.63.1 | Apolipophorin-III | Apolipophorin-III 5 helices; bundle, closed, left-handed twist |
| a.286.1 | Sama2622-like | Sama2622-like core: 6 helices; bundle; one central helix is surrounded by 5 others |
| 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 |
| a.99.1 | Cryptochrome/photolyase FAD-binding domain | Cryptochrome/photolyase FAD-binding domain multihelical; consists of two all-alpha subdomains |
| a.267.1 | Topoisomerase V catalytic domain-like | Topoisomerase V catalytic domain-like multihelical; irregular array; contains small amount of beta-structure and a 3-helical bundle with a variant homeofomain-like fold and HTH motif (scop_cf 46688) |
| e.64.1 | FlhC-like | FlhC-like 3 domains; d1 & d2 are similar three-helical bundles, with d1 containing an HTH motif; d3: zinc finger of a rubredoxin-like fold |
| 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.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 |
| a.24.8 | Proteasome activator | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| 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.1.3 | Thiamin phosphate synthase | 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.172.1 | Helical scaffold and wing domains of SecA | Helical scaffold and wing domains of SecA multihelical; consists of 2 all-alpha subdomains |
| 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.166.1 | RuBisCo LSMT C-terminal, substrate-binding domain | RuBisCo LSMT C-terminal, substrate-binding domain multihelical; irregular array of long and short helices |
| a.227.1 | ERO1-like similar active site architecture to | ERO1-like multihelical; consists of 2 four-helical bundles |
| a.196.1 | Invasion protein A (SipA) , C-terminal actin binding domain | Invasion protein A (SipA) , C-terminal actin binding domain 6 helices: orthogonal array |
| c.1.28 | Radical SAM enzymes common Fe-S cluster and SAM binding sites are embedded into complete or incomplete beta/alpha-barrel ! | 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.81.3 | FwdE-like contains extra N-terminal and C-terminal structures ! | FwdE/GAPDH domain-like core: alpha-beta-alpha-beta(3); mixed sheet: 2134, strand 2 is parallel to strand 1 |
| 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] |
| f.21.1 | Transmembrane di-heme cytochromes Three of the four heme-ligands are conserved between the two families; both heme groups bind similarly but not identically ! | Heme-binding four-helical bundle core: four transmembrane helices, up-and-down bundle, binds one or two heme groups in between the helices |
| 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) |
| 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 |
| c.142.1 | Nqo1 FMN-binding domain-like | Nqo1 FMN-binding domain-like 3 layers, a/b/a; parallel beta-sheet of 4 strands, order 3214 |
| f.54.1 | SNF-like | SNF-like 12 transmembrane helices; duplication: consists of two structurally similar halves |
| a.8.8 | Avirulence protein AvrPto | immunoglobulin/albumin-binding domain-like 3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold |
| a.144.2 | Ribosomal protein L20 | PABP domain-like 4 helices; an orthogonal array |
| c.1.24 | Pyridoxine 5'-phosphate synthase | 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.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 |
| c.127.1 | F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) the sheet topology is similar to those of the Periplasmic binding protein-like I domains ! | F420-dependent methylenetetrahydromethanopterin dehydrogenase (MTD) 3 layers: a/b/a; parallel beta-sheet of 6 strands, order 213456 |
| 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 |
| a.224.1 | Glycolipid transfer protein, GLTP | Glycolipid transfer protein, GLTP multihelical; 2 layers or orthogonally packed helices |
| d.329.1 | PF0523-like | PF0523-like beta-alpha-beta-alpha(3)-beta-alpha-beta-alpha; 3 layers, a/b/a; antiparallel beta-sheet, order 4132; some similarity to the PurM C-terminal domain-like fold (scop_cf 56041) |
| f.21.2 | Fumarate reductase respiratory complex transmembrane subunits two distinct families: in one family the common fold is contained in a single-chain subunit, in the other it is formed by two chains ! | Heme-binding four-helical bundle core: four transmembrane helices, up-and-down bundle, binds one or two heme groups in between the helices |
| a.24.14 | FAT domain of focal adhesion kinase | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| a.215.1 | A middle domain of Talin 1 | A middle domain of Talin 1 5 helices; bundle, closed, left-handed twist; helices 2-5 adopt the Four-helical up-and-down bundle fold (scop_cf 47161) |
| a.5.9 | HBS1-like domain possibly related to UBA-like domains ! | RuvA C-terminal domain-like 3 helices; bundle, right-handed twist |
| a.216.1 | I/LWEQ domain | I/LWEQ domain 5 helices; bundle, closed, left-handed twist |
| f.25.1 | Cytochrome c oxidase subunit III-like | Cytochrome c oxidase subunit III-like core: 7 transmembrane helices organized into two bundles, one formed by the first two helices and the other by the rest |
| e.2.1 | Replication terminator protein (Tus) | Replication terminator protein (Tus) contains a cluster of helices and a beta-sandwich |
| a.124.1 | Phospholipase C/P1 nuclease duplication: all chain but the N-terminal helix forms two structural repeats ! | Phospholipase C/P1 nuclease multihelical |
| a.198.1 | YcfC-like | YcfC-like multihelical; contains two buried central helices |
| a.154.1 | Variable surface antigen VlsE | Variable surface antigen VlsE multihelical; consists of two all-alpha subdomains; contains a 4-helical bundle with left-handed twist and up-and-down topology |
| 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) |
| f.29.1 | Photosystem I subunits PsaA/PsaB | Photosystem I subunits PsaA/PsaB core:11 transmembrane helices |
| a.48.2 | Transferrin receptor-like dimerisation domain | N-cbl like 4 helices; bundle, left-handed twist; left-handed superhelix |
| a.24.1 | Apolipoprotein | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| d.261.1 | Hypothetical protein PH1602 | Hypothetical protein PH1602 complex alpha+beta fold; contains a region of similarity to the ferredoxin-like fold |
| d.36.1 | Chalcone isomerase | Chalcone isomerase beta(3)-alpha(2)-beta-alpha(2)-beta3; 2 layers alpha/beta; antiparallel sheet: order 1234567 |
| e.45.1 | Antivirulence factor | Antivirulence factor contains a helical bundle with a buried helix and an alpha+beta insert domain |
| e.71.1 | AF1531-like | AF1531-like 2 domains; d1: incomplete barrel similar to the OB-fold domain of ribosomal L2 protein, d2: six helices, array |
| a.265.1 | Fic-like | Fic-like multihelical; one central helix is surrounded by seven helices |
| f.42.1 | Mitochondrial carrier duplication: consists of three alpha-hairpin repeats ! | Mitochondrial carrier membrane all-alpha fold; 6-helical "barrel" with internal binding cavity |
| f.33.1 | Calcium ATPase, transmembrane domain M | Calcium ATPase, transmembrane domain M core: multihelical; consists of three transmembrane regions of 2, 2 and 6 helices, separated by cytoplasmic domains |
| a.24.23 | Mannose-6-phosphate receptor binding protein 1 (Tip47), C-terminal domain contains extra alpha+beta subdomain formed by the N- and C-termini. ! | Four-helical up-and-down bundle core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down |
| f.18.1 | F1F0 ATP synthase subunit A | F1F0 ATP synthase subunit A core: up-and-down bundle of four transmembrane helices |
| f.57.1 | MgtE membrane domain-like homodimer, swapped with the N-terminal helices | MgtE membrane domain-like 5 transmembrane helices; bundle, right-handed twist |
| 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 |
| a.250.1 | IpaD-like | IpaD-like 6 helices; bundle, up-and-down; can be divided into two four-helical bundles sharing two helices (3 and 6), which are twice longer than the rest |
| a.191.1 | Methenyltetrahydrofolate cyclohydrolase-like | Methenyltetrahydrofolate cyclohydrolase-like 5 helices; bundle, closed, left-handed twist |
| d.58.60 | Bacterial polysaccharide co-polymerase-like Decorated common fold with extra helical regions, which facilitate oligomerization | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| f.37.1 | ABC transporter transmembrane region | ABC transporter transmembrane region multihelical; complex architecture with several transmembrane helices |
| f.41.1 | Preprotein translocase SecY subunit duplication: consists of two similar structural parts ! | Preprotein translocase SecY subunit 10 transmembrane helices forming of a gated channel |
| f.5.1 | Outer membrane efflux proteins (OEP) | Outer membrane efflux proteins (OEP) subunit fold contains tandem repeat of alpha-beta hairpin-alpha(2) motif ! trimeric fold contains barrel (n=12, S=18) formed by beta-hairpins, two from each subunit, and a bundle of helices with a channel running through it |
| a.151.1 | Glutamyl tRNA-reductase dimerization domain | Glutamyl tRNA-reductase dimerization domain 6 helices, homodimer of 3-helical domains |
| a.238.1 | BAR/IMD domain-like core: dimeric six-helical bundle; protuding long helices form aniparallel coiled coils at both bundle ends ! | BAR/IMD domain-like 6 helices, homodimer of 3-helical domains |