Folds:

1. b.1: Immunoglobulin-like beta-sandwich [48725] (28 superfamilies) sandwich; 7 strands in 2 sheets; greek-key some members of the fold have additional strands

2. b.2: Common fold of diphtheria toxin/transcription factors/cytochrome f [49379] (10 superfamilies) sandwich; 9 strands in 2 sheet; greek-key; subclass of immunoglobin-like fold

3. b.3: Prealbumin-like [49451] (7 superfamilies) sandwich; 7 strands in 2 sheets, greek-key variations: some members have additional 1-2 strands to common fold

4. b.4: HSP40/DnaJ peptide-binding domain [49492] (1 superfamily) sandwich; 6 strands in 2 sheets

5. b.5: alpha-Amylase inhibitor tendamistat [49497] (1 superfamily) sandwich; 6 strands in 2 sheets

6. b.6: Cupredoxin-like [49502] (2 superfamilies) sandwich; 7 strands in 2 sheets, greek-key variations: some members have additional 1-2 strands

7. b.7: C2 domain-like [49561] (5 superfamilies) sandwich; 8 strands in 2 sheets; greek-key

8. b.8: TRAF domain-like [49598] (1 superfamily) sandwich; 8 strands in 2 sheets; greek-key

9. b.9: Neurophysin II [49605] (1 superfamily) sandwich; 8 strands in 2 sheets; meander

10. b.11: gamma-Crystallin-like [49694] (1 superfamily) sandwich; 8 strands in 2 sheets; greek-key duplication: has internal pseudo twofold symmetry

11. b.12: Lipase/lipooxygenase domain (PLAT/LH2 domain) [49722] (1 superfamily) sandwich; 8 strands in 2 sheets; complex topology duplication: has weak internal pseudo twofold symmetry

12. b.14: Calpain large subunit, middle domain (domain III) [49757] (1 superfamily) sandwich; 8 strands in 2 sheets; jelly-roll

13. b.15: HSP20-like chaperones [49763] (1 superfamily) sandwich; 8 strands in 2 sheets; greek-key

14. b.16: Ecotin, trypsin inhibitor [49771] (1 superfamily) sandwich; 8 strands in 2 sheets; complex topology with the crossing loops

15. b.17: PEBP-like [49776] (1 superfamily) sandwich; 8 strands in 2 sheets; greek-key: partial topological similarity to immunoglobulin-like folds

16. b.18: Galactose-binding domain-like [49784] (1 superfamily) sandwich; 9 strands in 2 sheets; jelly-roll

17. b.19: Viral protein domain [49817] (1 superfamily) sandwich; 9 strands in 2 sheets; jelly-roll; form trimers

18. b.20: ENV polyprotein, receptor-binding domain [49829] (1 superfamily) sandwich; 9 strands in 2 sheets; greek-key; contains a few helices in loop regions

19. b.21: Virus attachment protein globular domain [49834] (1 superfamily) sandwich, 10 strands in 2 sheets; greek-key

20. b.22: TNF-like [49841] (1 superfamily) sandwich, 10 strands in 2 sheets; jelly-roll

21. b.23: CUB-like [49853] (3 superfamilies) sandwich, 10 strands in 2 sheets; jelly-roll

22. b.24: Hyaluronate lyase-like, C-terminal domain [49862] (1 superfamily) sandwich, 10 strands in 2 sheets; "folded meander"

23. b.25: Osmotin, thaumatin-like protein [49869] (1 superfamily) sandwich; 11 strands in 2 sheets

24. b.26: SMAD/FHA domain [49878] (1 superfamily) sandwich; 11 strands in 2 sheets; greek-key

25. b.27: Soluble secreted chemokine inhibitor, VCCI [49888] (1 superfamily) sandwich; 11 strands in 2 sheets; greek-key

26. b.28: Baculovirus p35 protein [49893] (1 superfamily) sandwich; 14 strands in 2 sheets; greek-key

27. b.29: Concanavalin A-like lectins/glucanases [49898] (1 superfamily) sandwich; 12-14 strands in 2 sheets; complex topology

28. b.30: Supersandwich [49993] (3 superfamilies) sandwich; 18 strands in 2 sheets

29. b.31: EV matrix protein [50011] (1 superfamily) consists of two beta-sandwich domains of similar topologies

30. b.32: gp9 [50016] (1 superfamily) consists of two different beta-sandwich domains unrelated to other beta-sandwich folds

31. b.33: ISP domain [50021] (1 superfamily) consists of two all-beta subdomains: conserved small domain has a rubredoxin-like fold; larger domain consists of 6 beta-stands packed in either sandwich of two 3-stranded sheets or closed barrel (n=6; S=8)

32. b.34: SH3-like barrel [50036] (21 superfamilies) barrel, partly opened; n*=4, S*=8; meander the last strand is interrupted by a turn of 3-10 helix

33. b.35: GroES-like [50128] (2 superfamilies) contains barrel, partly opened; n*=4, S*=8; meander

34. b.36: PDZ domain-like [50155] (1 superfamily) contains barrel, partly opened; n*=4, S*=8; meander; capped by alpha-helix

35. b.37: N-terminal domains of the minor coat protein g3p [50175] (1 superfamily) core: barrel, in some members open; n*=4, S*=8; meander

36. b.38: Sm-like fold [50181] (5 superfamilies) core: barrel, open; n*=4, S*=8; meander; SH3-like topology

37. b.39: Ribosomal protein L14 [50192] (1 superfamily) barrel, closed; n=5, S=8, meander

38. b.40: OB-fold [50198] (16 superfamilies) barrel, closed or partly opened n=5, S=10 or S=8; greek-key

39. b.41: PRC-barrel domain [50345] (1 superfamily) core: barrel, partly opened; n*=5, S*=8; meander

40. b.42: beta-Trefoil [50352] (8 superfamilies) barrel, closed; n=6, S=12; and a hairpin triplet; meander duplication: has internal pseudo threefold symmetry

41. b.43: Reductase/isomerase/elongation factor common domain [50412] (4 superfamilies) barrel, closed; n=6, S=10; greek-key

42. b.44: Elongation factor/aminomethyltransferase common domain [50464] (2 superfamilies) barrel, closed; n=6, S=10; greek-key

43. b.45: Split barrel-like [50474] (3 superfamilies) barrel; n=6, S=10; greek-key

44. b.46: FMT C-terminal domain-like [50485] (1 superfamily) barrel, open; n*=6, S*=10; greek-key

45. b.47: Trypsin-like serine proteases [50493] (1 superfamily) barrel, closed; n=6, S=8; greek-key duplication: consists of two domains of the same fold

46. b.48: mu transposase, C-terminal domain [50609] (1 superfamily) barrel; n=6, S=8, greek-key

47. b.49: Domain of alpha and beta subunits of F1 ATP synthase-like [50614] (3 superfamilies) barrel, closed; n=6, S=8; greek-key

48. b.50: Acid proteases [50629] (1 superfamily) barrel, closed; n=6, S=10, complex topology

49. b.51: ValRS/IleRS/LeuRS editing domain [50676] (1 superfamily) core: barrel, closed; n=6, S=8; topology is similar to that of the acid proteases barrel

50. b.52: Double psi beta-barrel [50684] (2 superfamilies) barrel, closed; n=6, S=10; complex topology with crossover (psi) loops

51. b.53: Ribosomal protein L25-like [50714] (1 superfamily) barrel, closed; n=6, S=10; complex topology

52. b.54: Core binding factor beta, CBF [50722] (1 superfamily) barrel, closed; n=6, S=10; meander; capped at both ends by alpha-helices

53. b.55: PH domain-like barrel [50728] (2 superfamilies) barrel, partly opened; n*=6, S*=12; meander; capped by an alpha-helix

54. b.56: Transcription factor IIA (TFIIA), beta-barrel domain [50783] (1 superfamily) barrel, closed; n=6, S=12; mixed beta-sheet

55. b.57: Herpes virus serine proteinase, assemblin [50788] (1 superfamily) core: barrel, closed; n=7, S=8; complex topology

56. b.58: PK beta-barrel domain-like [50799] (1 superfamily) barrel, closed; n=7, S=10; complex topology

57. b.59: XRCC4, N-terminal domain [50808] (1 superfamily) barrel, closed; n=7, S=10; order: 1234765; strands 1 and 5 are parallel to each other

58. b.60: Lipocalins [50813] (1 superfamily) barrel, closed or opened; n=8, S=12; meander

59. b.61: Streptavidin-like [50875] (8 superfamilies) barrel, closed; n=8, S=10; meander

60. b.62: Cyclophilin-like [50890] (1 superfamily) barrel, closed; n=8, S=10; complex topology

61. b.63: Oncogene products [50903] (1 superfamily) barrel, closed; n=8, S=10; one overside connection

62. b.64: Mannose 6-phosphate receptor domain [50910] (1 superfamily) barrel, partly open; n*=8, S*=10; one psi loop

63. b.65: triple barrel [50915] (1 superfamily) dimer of two non-identical subunits; forms two similar barrels, n=8, S=10 each, that are fused together with the formation of third barrel, n=6, S=8

64. b.66: 4-bladed beta-propeller [50922] (1 superfamily) consists of four 4-stranded beta-sheet motifs; meander

65. b.67: 5-bladed beta-propeller [50933] (3 superfamilies) consists of five 4-stranded beta-sheet motifs; meander

66. b.68: 6-bladed beta-propeller [50938] (11 superfamilies) consists of six 4-stranded beta-sheet motifs; meander

67. b.69: 7-bladed beta-propeller [50964] (14 superfamilies) consists of seven 4-stranded beta-sheet motifs; meander

68. b.70: 8-bladed beta-propeller [50997] (3 superfamilies) consists of eight 4-stranded beta-sheet motifs; meander also found in some members of the WD40-repeat superfamily

69. b.71: Glycosyl hydrolase domain [51010] (1 superfamily) folded sheet; greek-key

70. b.72: WW domain-like [51044] (3 superfamilies) core: 3-stranded meander beta-sheet

71. b.73: Head domain of nucleotide exchange factor GrpE [51063] (1 superfamily) small mixed beta-sheet, 4 "generalized" strands

72. b.74: Carbonic anhydrase [51068] (1 superfamily) single sheet; 10 strands

73. b.75: Bacteriochlorophyll A protein [51080] (1 superfamily) single sheet; 16 strands; meander

74. b.76: open-sided beta-meander [51086] (2 superfamilies) single sheet formed by beta-hairpin repeats; exposed on both sides in the middle

75. b.77: beta-Prism I [51091] (3 superfamilies) consists of 3 4-stranded sheets; strands are parallel to the 3-fold axis duplication: has internal pseudo threefold symmetry

76. b.78: beta-Prism II [51109] (1 superfamily) consists of 3 4-stranded sheets; strands are perpendicular to the 3-fold axis duplication: consists of two domains of this fold

77. b.80: Single-stranded right-handed beta-helix [51125] (8 superfamilies) superhelix turns are made of parallel beta-strands and (short) turns

78. b.81: Single-stranded left-handed beta-helix [51160] (4 superfamilies) superhelix turns are made of parallel beta-strands and (short) turns

79. b.82: Double-stranded beta-helix [51181] (7 superfamilies) one turn of helix is made by two pairs of antiparallel strands linked with short turns has appearance of a sandwich of distinct architecture and jelly-roll topology

80. b.83: Triple beta-spiral [51224] (1 superfamily) trimer formed by the interlocking beta-hairpin repeat units

81. b.84: Barrel-sandwich hybrid [51229] (4 superfamilies) sandwich of half-barrel shaped beta-sheets

82. b.85: beta-clip [51268] (7 superfamilies) double-stranded ribbon sharply bent in two places; the ribbon ends form incomplete barrel; jelly-roll

83. b.86: Hedgehog/intein (Hint) domain [51293] (1 superfamily) complex fold made of five beta-hairpin units and a b-ribbon arc

84. b.87: LexA/Signal peptidase [51305] (1 superfamily) complex fold made of several coiled beta-sheets; contains an SH3-like barrel

85. b.88: Mss4-like [51315] (1 superfamily) complex fold made of several coiled beta-sheets

86. b.89: Cyanovirin-N [51321] (1 superfamily) complex fold

87. b.90: Head-binding domain of phage P22 tailspike protein [51326] (1 superfamily) complex fold made of bifurcated and partly folded beta-sheet

88. b.91: E2 regulatory, transactivation domain [51331] (1 superfamily) complex fold made of bifurcated and coiled beta-sheets

89. b.92: Composite domain of metallo-dependent hydrolases [51337] (1 superfamily) pseudobarrel; mixed sheet of 7 strand folded upon itself and "buckled" by two beta-turns

90. b.93: Epsilon subunit of F1F0-ATP synthase N-terminal domain [51343] (1 superfamily) pseudobarrel: sandwich of two sheets packed at a positive interstrand angle and interconnected with many short turns

91. b.94: Olfactory marker protein [63696] (1 superfamily) sandwich; 8 strands in 2 sheets; jelly-roll

92. b.95: Ganglioside M2 (gm2) activator [63706] (1 superfamily) sandwich; 8 strands in 2 sheets; greek-key: partial topological similarity to immunoglobulin-like folds

93. b.96: Nicotinic receptor ligand binding domain-like [63711] (1 superfamily) sandwich; 8 strands in 2 sheets; greek-key: partial topological similarity to immunoglobulin-like folds

94. b.97: Cytolysin/lectin [63723] (1 superfamily) sandwich, 10 strands in 2 sheets;

95. b.98: Leukotriene A4 hydrolase N-terminal domain [63736] (1 superfamily) duplication: two beta-sandwiches of similar topologies are fused together in a single three beta-sheet domain

96. b.100: Sortase [63816] (1 superfamily) barrel, closed; n=8, S=10; mixed sheet; two overside connections

97. b.101: Ribonuclease domain of colicin E3 [63839] (1 superfamily) twisted meander beta-sheet of 6 strands

98. b.102: Methuselah ectodomain [63876] (1 superfamily) complex fold

99. b.103: MoeA N-terminal region -like [63881] (1 superfamily) complex fold made of bifurcated and coiled b-sheets

100. b.104: P-domain of calnexin/calreticulin [63886] (1 superfamily) non-globular proline-rich hairpin

101. b.105: Penicillin-binding protein associated domain [69188] (1 superfamily) sandwich; 6 strands in 2 sheets

102. b.106: Phage tail proteins [69278] (1 superfamily) core: barrel; n=6, S=10; greek-key; topologically similar to the FMN-binding split barrel

103. b.107: Urease metallochaperone UreE, N-terminal domain [69286] (1 superfamily) barrel, closed; n=6, S=8; a crossover loop topology

104. b.108: Triple-stranded beta-helix [69348] (1 superfamily) (homo)trimer; each chain donates 3 beta-strands per turn of the helix

105. b.109: beta-hairpin stack [69359] (1 superfamily) Trp-rich beta-hairpin repeat units form helical structures of 3 units per turn

106. b.110: Cloacin translocation domain [69368] (1 superfamily) complex fold made of several coiled beta-sheets

107. b.111: Small protein B (SmpB) [74981] (1 superfamily) barrel, closed; n=6, S=8, greek-key, partial similarity to the OB-fold

108. b.112: C-terminal domain of mollusc hemocyanin [81278] (1 superfamily) six-stranded beta-sandwich, jelly-roll/greek-key topology

109. b.113: N-terminal domain of MutM-like DNA repair proteins [81625] (1 superfamily) pseudobarrel; capped on both ends by alpha-helices

110. b.114: N-utilization substance G protein NusG, insert domain [82003] (1 superfamily) sandwich; 8 strands in 2 sheets; meander

111. b.115: Calcium-mediated lectin [82025] (1 superfamily) sandwich; 9 strands in 2 sheets; greek-key

112. b.116: Viral chemokine binding protein m3 [82045] (1 superfamily) consists of two different beta-sandwich domains of partial topological similarity to immunoglobulin-like folds

113. b.117: Obg-fold [82050] (1 superfamily) this fold is formed by three glycine-rich regions inserted into a small 8-stranded beta-sandwich these regions form six left-handed collagen-like helices packed and H-bonded together

114. b.118: FAS1 domain [82152] (1 superfamily) core: barrel, closed; n=7, S=12; meander

115. b.119: C-terminal autoproteolytic domain of nucleoporin nup98 [82214] (1 superfamily) multisheet protein with a mixture of beta-sandwich and beta-prism features

116. b.120: Tp47 lipoprotein, N-terminal domain [82219] (1 superfamily) complex fold; consists of two intertwined subdomains

117. b.121: Nucleoplasmin-like/VP (viral coat and capsid proteins) [88632] (7 superfamilies) 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

118. b.122: PUA domain-like [88696] (1 superfamily) pseudobarrel; mixed folded sheet of 5 strands; order 13452; strand 1 and 3 are parallel to each other

119. b.123: Hypothetical protein TM1070 [89231] (1 superfamily) sandwich; 8 strands in 2 sheets; jelly-roll

120. b.124: HesB-like domain [89359] (1 superfamily) barrel, closed; n=7, S=10; complex topology

121. b.125: LolA-like prokaryotic lipoproteins and lipoprotein localization factors [89391] (1 superfamily) 11 stranded sheet partly folded in a corner-like structure filled with a few short helices

122. b.126: Adsorption protein p2 [89427] (1 superfamily) multisheet protein containing partial beta-propeller and beta-sandwich regions

123. b.127: Baseplate structural protein gp8 [89432] (1 superfamily) multisheet protein with a mixture of beta-sandwich and beta-barrel features

124. b.128: Hypothetical protein YojF [89441] (1 superfamily) pseudobarrel; capped at one end by an alpha-helix

125. b.129: Double-split beta-barrel [89446] (2 superfamilies) pseudobarrel; capped on both ends by alpha-helices

126. b.130: Heat shock protein 70kD (HSP70), peptide-binding domain [100919] (1 superfamily) beta-sandwich: 8 strands in 2 sheets

127. b.131: SPOC domain-like [100938] (1 superfamily) barrel, closed; n=7, S=10; complex topology

128. b.132: Supernatant protein factor (SPF), C-terminal domain [101575] (1 superfamily) sandwich; 8 strands in 2 sheets; jelly-roll; similarity to the Nucleoplasmin-like/VP fold

129. b.133: Dextranase, N-terminal domain [101595] (1 superfamily) sandwich; 9 strands in 2 sheets; greek-key

130. b.134: Smp-1-like [101600] (1 superfamily) sandwich; 9 strands in 2 sheets; greek-key/jelly-roll

131. b.135: Superantigen (mitogen) Ypm [101605] (1 superfamily) sandwich; 9 strands in 2 sheets; jelly-roll

132. b.136: SspB-like [101737] (1 superfamily) core: barrel, open; n*=4, S*=8; meander; SH3-like topology; some similarity to the Sm-like fold

133. b.137: Rof/RNase P subunit-like [101743] (1 superfamily) core: barrel, open; n*=4, S*=8; meander; SH3-like topology; some similarity to the Sm-like fold

134. b.138: Hydrophobin II, HfbII [101750] (1 superfamily) core: barrel, closed; n=4, S=8; complex topology; helix-containing crossover connection

135. b.139: Surface presentation of antigens (SPOA) [101800] (1 superfamily) segment-swapped dimer forming two identical conjoint barrels (n=6, S=10) topologically similar to the FMN-binding split barrel

136. b.140: Replicase NSP9 [101815] (1 superfamily) barrel; n=6, S=8, greek-key; similar to one trypsin-like protease barrel

137. b.141: Bacterial fluorinating enzyme, C-terminal domain [101851] (1 superfamily) barrel, closed; n=7, S=10; greek-key topology; one overside connection

138. b.142: DNA-binding pseudobarrel domain [101935] (1 superfamily) core: barrel, open; n=7, S*=10; capped with helices at both ends; partial similarity to the AbrB/MazE/MraZ-like fold (89446)

139. b.143: NAC domain [101940] (1 superfamily) core: twisted 7-stranded beta-sheet (half-barrel)

140. b.144: Trimeric adhesin [101998] (1 superfamily) trimer; contains two different beta-prism-like domains connected by an linker subdomain of less regular structure

141. b.145: AXH domain [102030] (1 superfamily) pseudobarrel; some similarity to OB-fold

142. b.146: Ctag/Cox11 [110110] (1 superfamily) sandwich; 7 strands in 2 sheets, greek-key; permutation of the immunoglobulin-like fold

143. b.147: BTV NS2-like ssRNA-binding domain [110131] (1 superfamily) sandwich; 9 strands in 2 sheets; unusual topology with 2 crossover loops

144. b.148: Coronavirus RNA-binding domain [110303] (1 superfamily) coiled antiparallel beta-sheet of 5 strands, order 51324; complex topology, crossing loops

145. b.149: Beta-galactosidase LacA, domain 3 [117099] (1 superfamily) sandwich; 8 strands in 2 sheets

146. b.150: Putative glucosidase YicI, C-terminal domain [117124] (1 superfamily) sandwich; 10 strands in two sheets

147. b.151: CsrA-like [117129] (1 superfamily) sandwich; 10 strands in 2 sheets; intertwined dimer (segment-swapped, 5-stranded greek-key sandwich?)

148. b.152: Flagellar hook protein flgE [117142] (1 superfamily) consists of two different domains; d1: [complex fold made of bifurcated beta-sheets]; d2 (inserted into d1): [beta-sandwich; 8 strands in 2 sheets]

149. b.153: PheT/TilS domain [56036] (1 superfamily) core: 3 layers; contains beta-sandwich of unusual topology

150. b.154: HPA-like [141085] (1 superfamily) sandwich, 6 strands in 2 sheets; jelly-roll (truncated); also includes the pending PCSK9 V domain-like superfamily (the C-terminal domains of 2p4e and 2pmw)

151. b.155: L21p-like [141090] (1 superfamily) core: sandwich, 6 strands in 2 sheets

152. b.156: Atu1913-like [141098] (1 superfamily) sandwich; 7 strands in two sheets, greek-key/jelly-roll; forms segment swapped dimers, swapping is probably facilitated by the helix insertion after strand 3

153. b.157: Hcp1-like [141451] (1 superfamily) barrel, closed; n=6, S=12; contains extra, non-barrel strand 7 at the C-terminus

154. b.158: BH3618-like [141456] (1 superfamily) barrel, closed; n=7, S=10; meander

155. b.159: AOC barrel-like [141492] (2 superfamilies) barrel, closed; n=8, S=10; meander; mirrored (reversed) topology to the Spreptavidin-like and Lipocalin-like folds

156. b.160: L,D-transpeptidase catalytic domain-like [141522] (1 superfamily) barrel, closed; n=8, S=10; one overside connection

157. b.161: PTSIIA/GutA-like [141529] (1 superfamily) barrel, closed; n=8, S=12; mixed sheet; two overside connections; duplication: consists of two intertwinned structural repeats

158. b.162: At5g01610-like [141561] (1 superfamily) contains large meander beta-sheet bent into a scoop-like shape

159. b.163: Pseudo beta-prism [141657] (1 superfamily) beta-sandwich with one regular beta-sheet and the other beta-sheet bent in the middle with a set of aligned beta-bulges

160. b.164: SARS ORF9b-like [141665] (1 superfamily) complex dimeric fold with three intersubunit beta-sheets packed around a single core

161. b.165: MOSC N-terminal domain-like [141672] (1 superfamily) complex fold; comprises a beta-hairpin and a meander 3-stranded sheet packed against beta-barrel: closed, n=5, S=8; contains three short helices

162. b.166: MAL13P1.257-like [141677] (1 superfamily) complex fold; duplication: consists of two intertwinned structural repeats related by pseudo dyad

163. b.167: FimD N-terminal domain-like [141728] (1 superfamily) pseudo barrel, capped by an alpha-helix; some topological similarity to the PRC-barrel domain (50346) and the N-terminal domain of Glutamine synthetase (54368)

164. b.168: HisI-like [141733] (1 superfamily) pseudo barrel, capped by an alpha-helix; contains a beta-triangle structure on one side; some topological similarity to the Ribosomal protein L25-like fold (50714) and the N-terminal domain of Glutamine synthetase (54368)

165. b.169: MFPT repeat-like [141738] (1 superfamily) consists of two similar pseudo barrel subdomains with structural similarity to a circularly permuted SAND domain (63764)

166. b.170: WSSV envelope protein-like [158973] (1 superfamily) beta-sandwich; 9 strands in 2 sheets; greek-key

167. b.171: Trm112p-like [158996] (1 superfamily) similar to the small domain of the ISP (50021)

168. b.172: YopX-like [159005] (1 superfamily) consists of two domains: the N-terminal dimerisation domain of variable structure and the C-terminal domain with similarity to the SH3-like fold

169. b.173: NifT/FixU barrel-like [159202] (1 superfamily) barrel, closed, n=6, S=10; meander

170. b.174: YopT-like [159221] (1 superfamily) beta-sheet barrel, closed, n=6, S=12, capped at both ends by helices; intertwined dimer of beta-alpha-beta(2) subinits;

171. b.175: FomD barrel-like [159233] (1 superfamily) barrel, closed; n=8, S=12; meander; similar topology to the AOC barrel-like fold (reversed to the lipocalin barrel topology)

172. b.176: AttH-like [159244] (1 superfamily) duplication: two flattened beta-barrels of lipocalin-like topology are orthogonally packed with a pseudo twofold symmetry

173. b.177: YmcC-like [159269] (1 superfamily) 12-stranded meander beta-sheet, folded into a deformed beta-barrel; topological similarity to the LolA-like fold (89391)

174. b.178: Spiral beta-roll [159274] (1 superfamily) a large 15-stranded beta-sheet rolled about a single helix core; overlapping edges form a sandwich-like structure; topological similarity to the LolA-like fold (89391)

More info for Class b: All beta proteins

Timeline for Class b: All beta proteins:

• Class b: All beta proteins first appeared (with stable ids) in SCOP 1.55
  
• Class b: All beta proteins appears in SCOP 1.75
  
• Class b: All beta proteins appears in SCOPe 2.02
  
• Class b: All beta proteins appears in the current release, SCOPe 2.08