Structural Classification of Proteins
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Root: scop

Classes:

  1. All alpha proteins [46456] (258)
    1. Globin-like [46457] (2) picpic
      core: 6 helices; folded leaf, partly opened
    2. Long alpha-hairpin [46556] (19) picpic
      2 helices; antiparallel hairpin, left-handed twist
    3. Type I dockerin domain [63445] (1) picpic
      tandem repeat of two calcium-binding loop-helix motifs, distinct from the EF-hand
    4. LEM/SAP HeH motif [63450] (5) picpic
      helix-extended loop-helix; parallel helices
    5. RPB6/omega subunit-like [63561] (1) picpic
      core: 2 helices and adjacent loops
    6. KRAB domain (Kruppel-associated box) [109639] (1) picpic
      2 helices: one short, one long; aromatic-rich iterface
    7. Cytochrome c [46625] (1) picpic
      core: 3 helices; folded leaf, opened
    8. DNA/RNA-binding 3-helical bundle [46688] (14) picpic
      core: 3-helices; bundle, closed or partly opened, right-handed twist; up-and down
    9. Another 3-helical bundle [81602] (5) picpic
      topologically similar to the DNA/RNA-binding bundles; distinct packing
    10. RuvA C-terminal domain-like [46928] (9) picpic
      3 helices; bundle, right-handed twist
    11. S13-like H2TH domain [81297] (1) picpic
      core: 3-4 helices
    12. Putative DNA-binding domain [46954] (1) picpic
      core: 3 helices; architecture is similar to that of the "winged helix" fold but topology is different
    13. Spectrin repeat-like [46965] (15) picpic
      3 helices; bundle, closed, left-handed twist; up-and-down
    14. immunoglobulin/albumin-binding domain-like [46996] (10) picpic
      3 helices; bundle, closed, left-handed twist; up-and-down; mirror topology to the spectrin-like fold
    15. Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex [47004] (1) picpic
      3 helices; bundle, closed, right-handed twist; up-and-down
    16. ChaB-like [140375] (1) picpic
      3 helices, the first one is shorter than the other two; bundle, capped by a small, C-terminal beta-hairpin
    17. Protozoan pheromone-like [47013] (2) picpic
      3 helices; bundle, closed, left-handed twist, up-and-down
    18. Acyl-CoA binding protein-like [47026] (2) picpic
      core: 3 helices; bundle, closed, left-handed twist; up-and-down
    19. Kix domain of CBP (creb binding protein) [47039] (1) picpic
      3 helices; bundle, partly opened
    20. RAP domain-like [47044] (1) picpic
      3 helices, the first one is shorter than the other two; bundle, partly opened
    21. VHP, Villin headpiece domain [47049] (1) picpic
      3 short helices; irregular array
    22. BSD domain-like [140382] (1) picpic
      core: 3 helices; triangular array; the extra N-terminal and C-terminal helices form a coiled coil structure
    23. TAF(II)230 TBP-binding fragment [47054] (1) picpic
      3 short helices; irregular array
    24. S15/NS1 RNA-binding domain [47059] (1) picpic
      3 helices; irregular array
    25. Frizzled cysteine-rich domain [63500] (1) picpic
      Core: 3 helices; irregular array; disulfide-rich
    26. T4 endonuclease V [47076] (1) picpic
      3 helices; irregular array
    27. Fertilization protein [47081] (1) picpic
      core: 3 helices; bundle, closed, right-handed twist; up-and-down
    28. PGBD-like [47089] (1) picpic
      core: 3 helices; bundle, closed, left-handed twist; parallel
    29. HMG-box [47094] (1) picpic
      3 helices; irregular array
    30. Histone-fold [47112] (1) picpic
      core: 3 helices; long middle helix is flanked at each end with shorter ones
    31. Open three-helical up-and-down bundle [47143] (6) picpic
      core: 3 helices; bundle, open
    32. beta-catenin-interacting protein ICAT [81729] (1) picpic
      core: 3 helices; irregular array
    33. DNA polymerase III theta subunit-like [116730] (1) picpic
      3 helices; irregular array
    34. Four-helical up-and-down bundle [47161] (27) picpic
      core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down
    35. PTS-regulatory domain, PRD [63519] (1) picpic
      core: 4 helices; bundle, closed, right-handed twist; 1 crossover connection
    36. Ferritin-like [47239] (4) picpic
      core: 4 helices; bundle, closed, left-handed twist; 1 crossover connection
    37. 4-helical cytokines [47265] (1) picpic
      core: 4 helices; bundle, closed; left-handed twist; 2 crossover connections
    38. Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases [47322] (1) picpic
      core: 4 helices; bundle; one loop crosses over one side of the bundle
    39. Acyl carrier protein-like [47335] (3) picpic
      4 helices, bundle; helix 3 is shorter than others; up-and-down
    40. Bromodomain-like [47363] (10) picpic
      4 helices; bundle; minor mirror variant of up-and-down topology
    41. ROP-like [47379] (8) picpic
      4 helices; dimer of identical alpha-hairpin subunits; bundle, closed, left-handed twist
    42. Dimerization-anchoring domain of cAMP-dependent PK regulatory subunit [47390] (1) picpic
      4 helices; bundle, closed, right-handed twist
    43. Soluble domain of poliovirus core protein 3a [89042] (1) picpic
      4 helices; bundle, closed, right-handed twist
    44. Transcription factor IIA (TFIIA), alpha-helical domain [47395] (1) picpic
      4 helices; bundle, closed, right-handed twist
    45. Ectatomin subunits [47400] (1) picpic
      4 helices; bundle, closed, left-handed twist
    46. Dimerisation interlock [47405] (4) picpic
      4 helices; bundle, closed, right-handed twist
    47. lambda repressor-like DNA-binding domains [47412] (1) picpic
      core: 4 helices; folded leaf, closed
    48. Signal peptide-binding domain [47445] (1) picpic
      4 helices; orthogonal array
    49. A DNA-binding domain in eukaryotic transcription factors [47453] (1) picpic
      4 helices; the long C-terminal helix protrudes from the domain and binds to DNA
    50. HLH-like [47458] (2) picpic
      4-helices; bundle, closed, left-handed twist; 2 crossover connections
    51. EF Hand-like [47472] (4) picpic
      core: 4 helices; array of 2 hairpins, opened
    52. CH domain-like [47575] (3) picpic
      core: 4 helices: bundle
    53. Domain of poly(ADP-ribose) polymerase [47586] (1) picpic
      core: 4 helices: bundle; unusual topology
    54. SWIB/MDM2 domain [47591] (1) picpic
      core: 4 helices: open bundle; capped by two small 3-stranded beta-sheets
      duplication: consists of two structural repeats
    55. Pre-protein crosslinking domain of SecA [81766] (1) picpic
      core: 4 helices: bundle; flanked by two short beta-hairpins
      duplication: consists of two structural repeats
    56. Ribbon-helix-helix [47597] (1) picpic
      core: 4 helices; array of 2 hairpins, opened
    57. Glutathione S-transferase (GST), C-terminal domain [47615] (1) picpic
      core: 4 helices; bundle, closed, left-handed twist; right-handed superhelix
    58. Methionine synthase domain-like [47643] (3) picpic
      4 helices; bundle, left-handed twist; right-handed superhelix
    59. KaiA/RbsU domain [101214] (1) picpic
      4 helices; bundle, right-handed twist; right-handed superhelix
    60. STAT-like [47654] (6) picpic
      4 long helices; bundle, left-handed twist (coiled coil); right-handed superhelix
    61. N-cbl like [47667] (4) picpic
      4 helices; bundle, left-handed twist; left-handed superhelix
    62. Replisome organizer (g39p helicase loader/inhibitor protein) [89063] (1) picpic
      4 helices; bundle, right-handed twist; left-handed superhelix
    63. Hypothetical protein YqbG [116914] (1) picpic
      core: 4 helices; bundle, right-handed twist; left-handed superhelix
    64. C-terminal domain of B transposition protein [47680] (1) picpic
      4 helices; irregular array
    65. HAND domain of the nucleosome remodeling ATPase ISWI [101223] (1) picpic
      4 helices; irregular array
    66. N-terminal, cytoplasmic domain of anti-sigmaE factor RseA [89068] (1) picpic
      4 helices; irregular array
    67. Anaphylotoxins (complement system) [47685] (1) picpic
      4 helices; irregular array, disulfide-linked
    68. Cytochrome c oxidase subunit h [47693] (1) picpic
      4 helices; irregular array, disulfide-linked
    69. Crustacean CHH/MIH/GIH neurohormone [81777] (1) picpic
      4 helices; irregular array, disulfide-linked
    70. C-terminal domain of DFF45/ICAD (DFF-C domain) [81782] (1) picpic
      4 helices; folded leaf; right-handed superhelix
    71. Bifunctional inhibitor/lipid-transfer protein/seed storage 2S albumin [47698] (1) picpic
      4 helices; folded leaf; right-handed superhelix
    72. p53 tetramerization domain [47718] (1) picpic
      core: 4 helices; bundle
    73. Bcr-Abl oncoprotein oligomerization domain [69035] (1) picpic
      core: 4 long helices; bundle
    74. Domain of early E2A DNA-binding protein, ADDBP [47723] (1) picpic
      4 helices; bundle, partly opened
    75. IHF-like DNA-binding proteins [47728] (1) picpic
      core: 4 helices; bundle, partly opened, capped with a beta-sheet
    76. TraM-like [140580] (1) picpic
      multihelical oligomeric protein; structure of whole subunit is not known; the N-terminal part is implicated in DNA binding, the middle region forms tetrameric parallel coiled coil, surrounded by the C-terminal helices
    77. CO dehydrogenase ISP C-domain like [47740] (1) picpic
      core: 4 helices, bundle
    78. Protein HNS-dependent expression A; HdeA [47751] (1) picpic
      4 helices; the three last helices form a bundle similar to that of the RuvA C-domain
    79. PABP domain-like [63569] (2) picpic
      4 helices; an orthogonal array
    80. Chemotaxis receptor methyltransferase CheR, N-terminal domain [47756] (1) picpic
      4 helices; an orthogonal array
    81. Dcp2 domain-like [140585] (1) picpic
      4 helices; orthogonal array of two alpha hairpins
    82. Type III secretion system domain [140590] (1) picpic
      core: 4 helices, orthogonal array; right-handed superhelix
    83. YugE-like [116921] (1) picpic
      4-helices; bundle; right-handed twist
    84. PWI domain [101232] (1) picpic
      4 helices; up-and-down bundle; topological similarity to the bromodomain-like and SAM domain-like folds
    85. PAH2 domain [47761] (1) picpic
      4 helices; open up-and-down bundle; binds alpha-helical peptides
    86. Myosin phosphatase inhibitor 17kDa protein, CPI-17 [81789] (1) picpic
      4 helices; open up-and-down bundle; flexible N-terminal tail
    87. XPC-binding domain [101237] (1) picpic
      4 helices; array
    88. DinB/YfiT-like putative metalloenzymes [109853] (1) picpic
      core: 4 helices; bundle, closed, left-handed twist; an unusual topology with a higher contact order
    89. EspA/CesA-like [116926] (1) picpic
      4 helices; bundle, closed, left ight-handed twist; interlocked (hetero)dimer of 2-helical subunits
    90. NblA-like [109858] (1) picpic
      4 helices; dimer of identical alpha-hairpin subunits; open bundle
    91. EF2947-like [140606] (1) picpic
      4 helices; "diamond" array; duplication: N-terminal and C-terminal pairs of helices are related by pseudo dyad
    92. EB1 dimerisation domain-like [140611] (1) picpic
      dimeric 4-helical bundle with a coiled coil at one end formed by the longer N-terminal helices
    93. SAM domain-like [47768] (15) picpic
      4-5 helices; bundle of two orthogonally packed alpha-hairpins; involved in the interactions with DNA and proteins
    94. Retroviral matrix proteins [47835] (1) picpic
      4-5 helices; right-handed superhelix
    95. Flavivirus capsid protein C [101256] (1) picpic
      core: 5 helices; right-handed superhelix; swapped dimer with the two long C-terminal helices
    96. Hepatitis B viral capsid (hbcag) [47851] (1) picpic
      5 helices; array; two long helices form a hairpin that dimerizes into a 4-helical bundle
    97. Apolipophorin-III [47856] (1) picpic
      5 helices; bundle, closed, left-handed twist
    98. Methenyltetrahydrofolate cyclohydrolase-like [101261] (1) picpic
      5 helices; bundle, closed, left-handed twist
    99. A middle domain of Talin 1 [109879] (1) picpic
      5 helices; bundle, closed, left-handed twist; helices 2-5 adopt the Four-helical up-and-down bundle fold (scop_cf 47161)
    100. I/LWEQ domain [109884] (1) picpic
      5 helices; bundle, closed, left-handed twist
    101. RNA-binding protein She2p [116941] (1) picpic
      5 helices; bundle, closed, left-handed twist; topological similarity to the middle domain of the L-aspartase-like fold (scop_cf 48556)
    102. Hyaluronidase domain-like [140656] (2) picpic
      5 helices; bundle, closed, left-handed twist; up-and-down (meander) topology
    103. YoaC-like [140669] (1) picpic
      5 helices; bundle, one crossover connection, the arrangement of the first four helices is similar to the KaiA/RbsU domain fold (scop_cf 101214)
    104. Saposin-like [47861] (2) picpic
      5 helices; folded leaf, closed
    105. Annexin [47873] (1) picpic
      5 helices; folded leaf, closed
    106. Transducin (alpha subunit), insertion domain [47894] (1) picpic
      5 helices; folded leaf
    107. Wiscott-Aldrich syndrome protein, WASP, C-terminal domain [47911] (1) picpic
      5 helices; irregular array; left-handed superhelix
    108. Left-handed superhelix [47916] (3) picpic
      core: 4-5 helices; bundle; left-handed superhelix
    109. N-terminal domain of the delta subunit of the F1F0-ATP synthase [47927] (1) picpic
      core: 5 helices; bundle
    110. ERP29 C domain-like [47932] (2) picpic
      5 helices; bundle
    111. Functional domain of the splicing factor Prp18 [47937] (1) picpic
      core: 5 helices; bundle
    112. Retrovirus capsid protein, N-terminal core domain [47942] (1) picpic
      core: 5 helices; bundle
    113. Cyclin-like [47953] (1) picpic
      core: 5 helices; one helix is surrounded by the others
    114. Arp2/3 complex 21 kDa subunit ARPC3 [69059] (1) picpic
      5 helices; one helix is surrounded by the others
    115. RNase III domain-like [69064] (1) picpic
      core: 5 helices; one helix is surrounded by the others
    116. Ribosomal protein S7 [47972] (1) picpic
      core: 5 helices; contains one more helix and a beta-hairpin outside the core
    117. DNA polymerase III clamp loader subunits, C-terminal domain [48018] (1) picpic
      core: 5 helices: bundle
    118. PAP/OAS1 substrate-binding domain [81632] (1) picpic
      core: 5-helical bundle; up-and-down; right-handed twist
    119. Anti-sigma factor AsiA [69069] (1) picpic
      core: 5 helices: orthogonal array
    120. Antibiotic binding domain of TipA-like multidrug resistance regulators [89081] (1) picpic
      5 helices: orthogonal array
    121. Surp module (SWAP domain) [109904] (1) picpic
      5 helices: irregular array
    122. YgfY-like [109909] (1) picpic
      5 helices; array; forms a tight dimer in crystals
    123. Hypothetical protein YhaI [109914] (1) picpic
      core: 5 helices; orthogonal array; folding similarity to the TipA-S domain (1ny9)
    124. Hypothetical protein At3g22680 [109919] (1) picpic
      5 helices; array; probable biological unit is a homodimer
    125. SP0561-like [140682] (1) picpic
      5 helices; array; includes extra N-terminal and C-terminal short strands forming parrallel beta-sheet ladder
    126. YfmB-like [140687] (1) picpic
      5 helices, array; buried N-terminal helix; some topological similarity (circular permutation?) to the Nucleotidyltransferase substrate binding subunit/domain (scop_sf 81593)
    127. N-terminal domain of adenylylcyclase associated protein, CAP [101277] (1) picpic
      6 helices: bundle; left-handed twist, up-and-down topology
    128. IpaD-like [140692] (1) picpic
      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
    129. Iron-dependent repressor protein, dimerization domain [47978] (1) picpic
      6 helices, homodimer of 3-helical domains
    130. Glutamyl tRNA-reductase dimerization domain [69074] (1) picpic
      6 helices, homodimer of 3-helical domains
    131. GRIP domain [101282] (1) picpic
      6 helices, homodimer of 3-helical domains
    132. BAR/IMD domain-like [116747] (1) picpic
      6 helices, homodimer of 3-helical domains
    133. L27 domain [101287] (1) picpic
      6 helices, heterodimer of 3-helical domains
    134. Lissencephaly-1 protein (Lis-1, PAF-AH alpha) N-terminal domain [109924] (1) picpic
      dimer of 3-helical segments; consists of two subdomains: 4-helical bundle and coiled coil
    135. Phage replication organizer domain [140712] (1) picpic
      6 helices, homodimer of 3-helical domains
    136. Mediator hinge subcomplex-like [140717] (1) picpic
      6 helices; heterodimer of structurally similar subunits; the N-terminal hairpins form a four-helical bundle, whereas the C-terminal helices form coiled coil structure
    137. DEATH domain [47985] (1) picpic
      6 helices: closed bundle; greek-key; internal pseudo twofold symmetry
    138. Fatty acid responsive transcription factor FadR, C-terminal domain [48007] (1) picpic
      core: 6 helices: closed bundle; greek-key; internal pseudo twofold symmetry
    139. AF0941-like [140725] (1) picpic
      6 helices, arranged into two interconnected 3-helical bundles; can also be described as a 'kinked' four-helical bundle; right-handed superhelix
    140. NusB-like [48012] (1) picpic
      6 helices: bundle; one central helix is surrounded by 5 others
    141. YutG-like [101306] (1) picpic
      core: 6 helices; bundle; one central helix is surrounded by 5 others
    142. N-terminal domain of DnaB helicase [48023] (1) picpic
      6 helices: array
    143. Invasion protein A (SipA) , C-terminal actin binding domain [101311] (1) picpic
      6 helices: orthogonal array
    144. Guanido kinase N-terminal domain [48033] (1) picpic
      irregular array of 6 short helices
    145. Scaffolding protein gpD of bacteriophage procapsid [48044] (1) picpic
      core: 6 helices; one central helix is surrounded by 5 others
    146. Hemocyanin, N-terminal domain [48049] (1) picpic
      6 helices; bundle; one central helix is surrounded by 5 others
    147. Di-copper centre-containing domain [48055] (1) picpic
      multihelical
    148. DBL homology domain (DH-domain) [48064] (1) picpic
      multihelical; core: 5-helical bundle
    149. LigA subunit of an aromatic-ring-opening dioxygenase LigAB [48075] (1) picpic
      multihelical; contains compact array of 6 short helices
    150. RuBisCo LSMT C-terminal, substrate-binding domain [81821] (1) picpic
      multihelical; irregular array of long and short helices
    151. Methyl-coenzyme M reductase alpha and beta chain C-terminal domain [48080] (1) picpic
      multihelical bundle; contains buried central helix
    152. YcfC-like [101321] (1) picpic
      multihelical; contains two buried central helices
    153. PA2201 C-terminal domain-like [140730] (1) picpic
      multihelical; seven-helical bundle with buried central helix
    154. Rv1873-like [140735] (1) picpic
      multihelical; contains unusually short buried central helix
    155. RUN domain-like [140740] (1) picpic
      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
    156. SipA N-terminal domain-like [140745] (1) picpic
      multihelical; bundle; the last helix is buried inside the bundle
    157. Transcription factor STAT-4 N-domain [48091] (1) picpic
      multihelical; can be divided into two subdomains
    158. Regulator of G-protein signaling, RGS [48096] (1) picpic
      multihelical; consists of two all-alpha subdomains
      contains a 4-helical bundle with left-handed twist and up-and-down topology
    159. SopE-like GEF domain [81831] (1) picpic
      multihelical; consists of two all-alpha subdomains each containing a 3-helical bundle with right-handed twist
    160. Variable surface antigen VlsE [74747] (1) picpic
      multihelical; consists of two all-alpha subdomains; contains a 4-helical bundle with left-handed twist and up-and-down topology
    161. YgfB-like [101326] (1) picpic
      multihelical; consists of two tightly associated 3-helical bundles with different twists
    162. Hypothetical protein MTH393 [101331] (1) picpic
      multihelical; consists of two all-alpha subdomains; dimer
    163. PG0816-like [140752] (1) picpic
      multihelical; comprises two helical bundles, both are topologically similar to the RuvA C-terminal domain-like fold (scop_cf 46928)
    164. Carbamoyl phosphate synthetase, large subunit connection domain [48107] (1) picpic
      multihelical; consists of two all-alpha subdomains
      possible duplication: subdomains have similar topologies
    165. Heme-dependent peroxidases [48112] (1) picpic
      multihelical; consists of two all-alpha domains
    166. Ribosomal protein L19 (L19e) [48139] (1) picpic
      multihelical; consists of two different 3-helical domains connected by a long, partly helical linker
    167. GatB/YqeY motif [89094] (1) picpic
      multihelical; consists of two different alpha-helical bundles (4-helical and 3-helical)
    168. YfbU-like [116959] (1) picpic
      multihelical; consist of two subdomains; forms 24-mer with the N-terminal sudbomains packing around the 4-fold axis and the C-terminal domains interacting at the 2-fold and 3-fold axes
    169. Hypothetical protein MPN330 [116964] (1) picpic
      multihelical; consists of three different 4-helical bundles
    170. HD-domain/PDEase-like [109603] (1) picpic
      multihelical; consists of two different alpha-helical bundles
    171. Superantigen MAM [101343] (1) picpic
      multihelical; consists of two different alpha-helical bundles
    172. Influenza virus matrix protein M1 [48144] (1) picpic
      multihelical; consists of two different all-alpha subdomains, 4 helices each
    173. DNA-glycosylase [48149] (1) picpic
      multihelical; consists of two all-alpha domains
    174. An anticodon-binding domain of class I aminoacyl-tRNA synthetases [48162] (1) picpic
      multihelical; consists of two all-alpha domains
    175. Putative anticodon-binding domain of alanyl-tRNA synthetase (AlaRS) [101352] (1) picpic
      multihelical; consists of two all-alpha subdomains
    176. R1 subunit of ribonucleotide reductase, N-terminal domain [48167] (1) picpic
      multihelical consists of two all-alpha subdomains
      subdomain 1 (residues 10-100) is a 4-helical bundle
    177. BEACH domain [81836] (1) picpic
      multihelical, complex architecture
    178. Cryptochrome/photolyase FAD-binding domain [48172] (1) picpic
      multihelical; consists of two all-alpha subdomains
    179. 6-phosphogluconate dehydrogenase C-terminal domain-like [48178] (1) picpic
      multihelical; common core is formed around two long antiparallel helices related by (pseudo) twofold symmetry
    180. Uteroglobin-like [48200] (1) picpic
      multihelical
    181. alpha/alpha toroid [48207] (5) picpic
      multihelical; up to seven alpha-hairpins are arranged in closed circular array; there may be sequence similarities between different superfamilies
    182. Citrate synthase [48255] (1) picpic
      multihelical; consists of two all-alpha domains
    183. Cytochrome P450 [48263] (1) picpic
      multihelical
    184. Flagellar transcriptional activator FlhD [63591] (1) picpic
      multihelical; forms intertwined dimer of identical 5-helical subunits
    185. Ribosomal protein L7/12, oligomerisation (N-terminal) domain [48299] (1) picpic
      multihelical; intertwined tetramer
    186. Class II MHC-associated invariant chain ectoplasmic trimerization domain [48304] (1) picpic
      multihelical; intertwined trimer of identical 3-helical subunits
    187. Aldehyde ferredoxin oxidoreductase, C-terminal domains [48309] (1) picpic
      multihelical; consists of two all-alpha domains
    188. Acid phosphatase/Vanadium-dependent haloperoxidase [48316] (1) picpic
      multihelical; core: 5-helical bundle; binds cofactor at the beginning of third helix
    189. BRCA2 helical domain [81871] (1) picpic
      multihelical; contains a 3-helical bundle surrounded by several shorter helices
    190. BRCA2 tower domain [81877] (1) picpic
      multihelical; contains a 3-helical Hin recombinase-like subdomain and two long dimerisation helices
    191. H-NS histone-like proteins [81274] (1) picpic
      multihelical oligomeric protein; structure of whole subunit is not known yet but are probably composed of three different domains
    192. Sigma2 domain of RNA polymerase sigma factors [88945] (1) picpic
      multihelical; consists of a conserved 4-helical core and a variable insert subdomain
    193. DNA repair protein MutS, domain III [48333] (1) picpic
      multihelical; consists of 2 all-alpha subdomains
    194. Helical scaffold and wing domains of SecA [81885] (1) picpic
      multihelical; consists of 2 all-alpha subdomains
    195. all-alpha NTP pyrophosphatases [101385] (1) picpic
      multihelical: dimeric 4-helical bundle surrounded by other helices; oligomerizes further in a tetramer
    196. Hsp90 co-chaperone CDC37 [101390] (1) picpic
      multihelical; consists of 2 all-alpha subdomains connected by a long helix
    197. Nop domain [89123] (1) picpic
      multihelical; array of longer and shorter helices; contains an alpha-hairpin dimerisation subdomain
    198. YidB-like [140803] (1) picpic
      multihelical; three strings of short helices are packed across one longer helix
    199. Interferon-induced guanylate-binding protein 1 (GBP1), C-terminal domain [48339] (1) picpic
      multihelical; bundle of longer and shorter helices
    200. A virus capsid protein alpha-helical domain [48344] (1) picpic
      multihelical; three-helical bundle in the core is surrounded by non-conserved helices
    201. P40 nucleoprotein [101398] (1) picpic
      multihelical; consists of two subdomains
    202. Rhabdovirus nucleoprotein-like [140808] (1) picpic
      multihelical, consist of two helical domains; each domain contains a buried helix
    203. GTPase activation domain, GAP [48349] (1) picpic
      multihelical
    204. Ras GEF [48365] (1) picpic
      multihelical
    205. Telomeric repeat binding factor (TRF) dimerisation domain [63599] (1) picpic
      multihelical; can be divided into an alpha-alpha superhelix domain and a long alpha-hairpin dimerization domain
    206. Poly A polymerase C-terminal region-like [81890] (1) picpic
      multihelical; can be divided into three subdomains (neck, body and tail)
    207. alpha-alpha superhelix [48370] (23) picpic
      multihelical; 2 (curved) layers: alpha/alpha; right-handed superhelix
    208. GUN4-like [140868] (1) picpic
      multihelical; open array, trapping inside an extended region before the C-terminal helix
    209. Lipoxigenase [48483] (1) picpic
      multihelical
      large nearly all-alpha domain
    210. gene 59 helicase assembly protein [48492] (1) picpic
      multihelical; consists of two all-alpha subdomains
    211. Tetracyclin repressor-like, C-terminal domain [48497] (1) picpic
      multihelical; interlocked (homo)dimer
    212. Skp1 dimerisation domain-like [81384] (1) picpic
      multihelical; interlocked heterodimer with F-box proteins
    213. F-box domain [81385] (1) picpic
      multihelical; interlocked heterodimer with the Skp1 dimerisation domain
    214. Nuclear receptor ligand-binding domain [48507] (1) picpic
      multihelical; 3 layers or orthogonally packed helices
    215. Phospholipase C/P1 nuclease [48536] (1) picpic
      multihelical
    216. ATP-dependent DNA ligase DNA-binding domain [117017] (1) picpic
      multihelical; duplication: contains two intertwined structural repeats related by pseudo twofold symmetry
    217. DNA primase DnaG, C-terminal domain [117022] (1) picpic
      multihelical; segment-swapped dimer
    218. PriB N-terminal domain-like [140913] (1) picpic
      multihelical bundle; contains buried central helix; also includes the PriA interface-forming insert subdomain (alpha+beta)
    219. VPS9 domain [109992] (1) picpic
      multihelical; consist of two subdomains
    220. Triger factor/SurA peptide-binding domain-like [109997] (1) picpic
      multihelical; irregular array of long and short helices
    221. DNA terminal protein [140918] (1) picpic
      multihelical, open array; contains the C-terminal four-helical bundle, left-handed superhelix
    222. Glycolipid transfer protein, GLTP [110003] (1) picpic
      multihelical; 2 layers or orthogonally packed helices
    223. Hypothetical protein MG354 [110008] (1) picpic
      multihelical bundle; contains buried central helix
    224. Duffy binding domain-like [140923] (1) picpic
      consist of two subdomains, each containing a three-helical bundle
    225. Fic-like [140930] (1) picpic
      multihelical; one central helix is surrounded by seven helices
    226. Her-1 [110013] (1) picpic
      multihelical; consists of two topologically similar alpha-helical bundles
    227. ERO1-like [110018] (1) picpic
      multihelical; consists of 2 four-helical bundles
    228. Serum albumin-like [48551] (1) picpic
      multihelical; one domain consists of two similar disulfide-linked subdomains
    229. L-aspartase-like [48556] (1) picpic
      multihelical, consists of three all-alpha domains
    230. Formin homology 2 domain (FH2 domain) [101446] (1) picpic
      multihelical, consists of three all-alpha domains
    231. Terpenoid synthases [48575] (1) pic