| SCOP superfamily ID |
superfamiily description |
corresponding fold description |
| d.122.1 | ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase 8-stranded mixed beta-sheet; 2 layers: alpha/beta |
| d.74.3 | RBP11-like subunits of RNA polymerase form homo and heterodimers ! | DCoH-like beta(2)-alpha-beta(2)-alpha; 2 layers, alpha/beta |
| d.74.2 | C-terminal domain of arginine repressor forms trimers with three closely packed beta-sheets ! | DCoH-like beta(2)-alpha-beta(2)-alpha; 2 layers, alpha/beta |
| d.67.4 | General secretion pathway protein M, EpsM | RRF/tRNA synthetase additional domain-like core: alpha-beta(2)-alpha-beta(2); 2 layers: alpha/beta |
| d.123.1 | Sporulation response regulatory protein Spo0B Histidine kinase-like fold lacking the kinase ATP-binding site ! | Sporulation response regulatory protein Spo0B core: alpha-beta-alpha-beta(2)-(alpha)-beta(2) |
| b.38.4 | Dom34/Pelota N-terminal domain-like | Sm-like fold core: barrel, open; n*=4, S*=8; meander; SH3-like topology |
| 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.67.1 | ThrRS/AlaRS common domain putative editing domain found in the N-terminal part of ThrRS, the C-terminal of AlaRS, and as a stand-alone protein; probable circular permutation of LuxS ( | RRF/tRNA synthetase additional domain-like core: alpha-beta(2)-alpha-beta(2); 2 layers: alpha/beta |
| 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 |
| d.207.1 | Thymidylate synthase-complementing protein Thy1 | Thymidylate synthase-complementing protein Thy1 complex alpha+beta fold; contains antiparallel 5-stranded beta-sheet: order 12354 |
| 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 |
| d.104.1 | Class II aaRS and biotin synthetases | Class II aaRS and biotin synthetases contains large mixed beta-sheet |
| d.95.2 | Homing endonucleases | Homing endonuclease-like alpha-beta(2)-alpha-beta(2)-alpha; 2 layers: a/b; antiparallel sheet 1243 |
| d.64.2 | TM1457-like forms a homodimer via alpha-helical interface ! | eIF1-like beta(2)-alpha-beta(2)-alpha-beta; 2 layers: alpha/beta; mixed beta-sheet: order 51243 |
| d.250.1 | Folate-binding domain some topological similarity to Formylmethanofuran:tetrahydromethanopterin formyltransferase ! | Folate-binding domain duplication: consists of two beta(2)-alpha-beta(3)-alpha subdomains swapped with the first strands |
| d.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 |
| c.74.1 | AraD/HMP-PK domain-like | AraD/HMP-PK domain-like 3 layers: a/b/a; mixed (mostly antiparallel) beta-sheet of 9 strands, order 432159876; left-handed crossover between strands 4 and 5 |
| d.67.3 | Ribosome recycling factor, RRF | RRF/tRNA synthetase additional domain-like core: alpha-beta(2)-alpha-beta(2); 2 layers: alpha/beta |
| 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 |
| d.278.1 | Ligand-binding domain in the NO signalling and Golgi transport | Ligand-binding domain in the NO signalling and Golgi transport an N-terminal helical bundle and the C-terminal alpha-beta(2)-alpha-beta(2) subdomain enclose a ligand-binding cavity |
| d.79.1 | YjgF-like forms trimers with three closely packed beta-sheets; possibly related to the IspF ( | Bacillus chorismate mutase-like core: beta-alpha-beta-alpha-beta(2); mixed beta-sheet: order: 1423, strand 4 is antiparallel to the rest |
| d.74.5 | PH0987 N-terminal domain-like | DCoH-like beta(2)-alpha-beta(2)-alpha; 2 layers, alpha/beta |
| d.198.2 | Arp2/3 complex subunits | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| d.58.36 | Nitrite/Sulfite reductase N-terminal domain-like duplication: contains two subdomains of this fold ! | Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 |
| d.95.1 | Glucose permease domain IIB | Homing endonuclease-like alpha-beta(2)-alpha-beta(2)-alpha; 2 layers: a/b; antiparallel sheet 1243 |
| d.12.1 | Ribosomal proteins S24e, L23 and L15e | Ribosomal proteins S24e, L23 and L15e beta-(alpha)-beta-alpha-beta(2); 3 layers: alpha/beta/alpha; antiparallel beta-sheet: order 1243 |
| e.11.1 | Type II DNA topoisomerase | Type II DNA topoisomerase 4 domains: (1) toprim alpha/beta; (2) "winged helix"-like; (3) alpha+beta; (4) all-alpha |
| d.90.1 | FMN-dependent nitroreductase-like | FMN-dependent nitroreductase-like core: (alpha-beta-alpha-beta)2; 3 layers a/b/a; antiparallel beta-sheet: 1243 |
| d.64.1 | eIF1-like | eIF1-like beta(2)-alpha-beta(2)-alpha-beta; 2 layers: alpha/beta; mixed beta-sheet: order 51243 |
| d.198.1 | Type III secretory system chaperone-like | Secretion chaperone-like alpha-beta(3)-alpha-beta(2)-alpha; 2 layers: alpha/beta |
| d.315.1 | TRCF domain-like | TRCF domain-like beta-alpha(3)-beta(2)-alpha-beta(2)-alpha; 2 layers: alpha/beta; mixed beta sheet, order 12354, strands 1 and 2 are parallel; some topological similarity to the DCoH-like fold (scop_cf 55247) |
| d.318.1 | SARS receptor-binding domain-like | SARS receptor-binding domain-like core: 3 layers, a/b/a; antiparallel beta-sheet of 5 strands, order 13542 |
| d.179.1 | Substrate-binding domain of HMG-CoA reductase | Substrate-binding domain of HMG-CoA reductase unusual fold |
| d.145.1 | FAD-binding/transporter-associated domain-like | FAD-binding/transporter-associated domain-like consists of two alpha+beta subdomains |
| e.51.1 | Urocanase | Urocanase 3 domains; d1: alpha+beta [alpha(2)-beta(3); mixed sheet: 213]; d2: alpha/beta of the NAD(P)-binding Rossmann-fold superfamily (scop_sf 51735, most similar to scop_fa 51883 and scop_fa 51736); d3: alpha+beta of the glutamine synthetase/guanido kinase fold (scop_cf 55930); d1 and d3 form a single beta-sheet |
| 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 |
| d.13.1 | HIT-like | HIT-like alpha-beta(3)-alpha-beta(2); 3 layers: alpha/beta/alpha |
| d.143.1 | SAICAR synthase-like shares functional and structural similarities with the ATP-grasp fold and protein kinase superfamilies ! | SAICAR synthase-like consists of two alpha+beta subdomains |
| d.241.2 | Trigger factor ribosome-binding domain | Ribosome binding domain-like beta-(2)-alpha(2)-beta(2); 2 layers: beta/alpha; antiparallel beta-sheet: order 1243; topological similarity to the common core of ribosomal proteins L23 and L15e |
| d.312.1 | TM1622-like | TM1622-like alpha-beta(3)-alpha-beta(4)-alpha; 3 layers, a/b/a; antiparallel beta-sheet, order: 1237654 |
| d.206.1 | YggU-like | YggU-like beta(2)-loop-alpha-beta(2)-alpha; 2 layers: a/b; antiparallel sheet 1243; some similarity to the Homing endonuclease-like fold |
| 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 |
| d.60.1 | Probable bacterial effector-binding domain | Probable bacterial effector-binding domain duplication of beta-alpha-beta(2) motif: antiparallel beta sheet forms barrel (n=6, S=12) |
| d.371.1 | YehR-like | YehR-like beta(3)-alpha-beta(2)-alpha(3)-beta; 2 layers, a/b; antiparallel beta-sheet, order: 612354 |
| d.323.1 | Phage tail protein-like Can form ring, tube-like oligomers, where the subunit beta-sheets are joined in a single beta-sheet (or barrel) ! | Phage tail protein-like alpha-beta-X-beta(2)-alpha-beta(2); 2 layers: a/b; mixed beta-sheet: order 12354, strands 1 and 2 are parallel |
| d.193.1 | Hsp33 domain | Hsp33 domain 3 layers: beta/alpha/beta; buried helix |
| 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.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 |
| 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.190.1 | Chorismate lyase-like | Chorismate lyase-like duplication of alpha(2)-beta(3) motif; antiparallel beta sheet, order 123654 |
| d.115.1 | YrdC/RibB | YrdC/RibB core: alpha-beta(2)-alpha-beta-alpha(2)-beta(2)-alpha-beta-alpha-beta; 3 layers; mixed twisted sheet of 7 strands; order 7126354; strands 7 and 1 are parallel to each other |
| d.302.1 | Coronavirus NSP8-like | Coronavirus NSP8-like core: alpha-beta(2)-alpha-beta(4)-alpha-beta; bifurcated barrel-like beta-sheet |
| 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.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.65.1 | Hedgehog/DD-peptidase zinc-binding motif ! | Hedgehog/DD-peptidase alpha-beta(2)-alpha-beta(2); 2 layers: alpha/beta |
| d.79.4 | PurM N-terminal domain-like | Bacillus chorismate mutase-like core: beta-alpha-beta-alpha-beta(2); mixed beta-sheet: order: 1423, strand 4 is antiparallel to the rest |
| d.282.1 | SSo0622-like the dimer, formed in the crystals, is a probable biological unit ! | SSo0622-like alpha(2)-beta(2)-alpha-beta-alpha-beta(2)-alpha; 2 layers: a/b; antiparallel beta-sheet: order 21354; strands 1,3 and 5 and the C-terminal helix are longer than other secondary structures |
| d.13.2 | Rotavirus NSP2 fragment, C-terminal domain | HIT-like alpha-beta(3)-alpha-beta(2); 3 layers: alpha/beta/alpha |
| 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 |
| d.22.1 | GFP-like | GFP-like beta-sheet folds into a barrel (n=11, S=14) around the central helix |
| d.382.1 | PSTPO5379-like | PSTPO5379-like complex fold; consists of two alpha+beta subdomains, one is inserted in the other |
| d.173.1 | Methionine synthase activation domain-like | Methionine synthase activation domain-like unusual fold; core: beta-alpha(2)-beta(2)-alpha(2)-beta-alpha-beta; antiparallel beta-sheet: order 12354 |
| b.141.1 | Bacterial fluorinating enzyme, C-terminal domain | Bacterial fluorinating enzyme, C-terminal domain barrel, closed; n=7, S=10; greek-key topology; one overside connection |
| a.117.1 | Ras GEF | Ras GEF multihelical |
| 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.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 |
| d.309.1 | AMMECR1-like | AMMECR1-like duplication; contains two beta(2)-alpha-beta(2) structural repeats, swapped with C-terminal strands; extra N-terminal helix and C-terminal strand |
| d.261.1 | Hypothetical protein PH1602 | Hypothetical protein PH1602 complex alpha+beta fold; contains a region of similarity to the ferredoxin-like fold |