PDB SCOP_fold Description_fold #Residues 1dlyA a.1 Globin-like 121 1fxkC a.2 Long alpha-hairpin 133 1wijA a.140 LEM/SAP HeH motif 127 1qklA a.143 RPB6/omega subunit-like 127 1c52A a.3 Cytochrome c 131 1mijA a.4 DNA/RNA-binding 3-helical bundle 134 1fjgM a.156 S13-like H2TH domain 125 1q06A a.6 Putative DNA-binding domain 122 1i6zA a.7 Spectrin repeat-like 135 1ijxA a.141 Frizzled cysteine-rich domain 125 2endA a.18 T4 endonuclease V 137 2lisA a.19 Fertilization protein 131 1eqzA a.22 Histone-fold 125 1egvG a.23 Open three-helical up-and-down bundle 137 1h7iA a.24 Four-helical up-and-down bundle 140 1j30A a.25 Ferritin-like 141 1rhgA a.26 4-helical cytokines 145 1jspB a.29 Bromodomain-like 121 1dtlA a.39 EF Hand-like 149 1wjoA a.40 CH domain-like 124 1ez3A a.47 STAT-like 124 1xn8A a.229 Hypothetical protein YqbG 131 1bipA a.52 Bifunctional inhibitor/lipid-transfer protein/seed storage 2S albumin 122 1g9lA a.144 PABP domain-like 144 1y14A a.60 SAM domain-like 133 1uphA a.61 Retroviral matrix proteins 131 1qgtA a.62 Hepatitis B viral capsid (hbcag) 142 1dvkA a.72 Functional domain of the splicing factor Prp18 149 1m9fC a.73 Retrovirus capsid protein, N-terminal core domain 146 1unlD a.74 Cyclin-like 150 1jfzA a.149 RNase III domain-like 148 1husA a.75 Ribosomal protein S7 133 1vk5A a.220 Hypothetical protein At3g22680 121 1ddfA a.77 DEATH domain 127 1eyvA a.79 NusB-like 131 1q5zA a.196 Invasion protein A (SipA) , C-terminal actin binding domain 145 1al01 a.84 Scaffolding protein gpD of bacteriophage procapsid 143 1bouA a.88 LigA subunit of an aromatic-ring-opening dioxygenase LigAB 132 1bgfA a.90 Transcription factor STAT-4 N-domain 124 1agrE a.91 Regulator of G-protein signaling, RGS 128 1jj2O a.94 Ribosomal protein L19 (L19e) 143 1ng6A a.182 GatB/YqeY motif 148 1ngnA a.96 DNA-glycosylase 144 1klxA a.118 alpha-alpha superhelix 133 1t3wA a.236 DNA primase DnaG, C-terminal domain 131 1tm9A a.225 Hypothetical protein MG354 137 1szhA a.226 Her-1 147 1k6kA a.174 Double Clp-N motif 142 1gp7A a.133 Phospholipase A2, PLA2 124 1sa0E a.137 Non-globular all-alpha subunits of globular proteins 124 1ogyB a.138 Multiheme cytochromes 127 1dqlH b.1 Immunoglobulin-like beta-sandwich 122 1aohA b.2 Common fold of diphtheria toxin/transcription factors/cytochrome f 143 1lm8V b.3 Prealbumin-like 150 1pazA b.6 Cupredoxin-like 120 1so9A b.146 Ctag/Cox11 131 1rlwA b.7 C2 domain-like 126 1js9A b.121 Nucleoplasmin-like/VP (viral coat and capsid proteins) 149 1gmeA b.15 HSP20-like chaperones 150 1sluA b.16 Ecotin, trypsin inhibitor 131 1tvgA b.18 Galactose-binding domain-like 136 1ahsA b.19 Viral protein domain 126 1alyA b.22 TNF-like 146 1x99A b.97 Cytolysin/lectin 141 1g6gA b.26 SMAD/FHA domain 127 1sltA b.29 Concanavalin A-like lectins/glucanases 130 1h2cA b.31 EV matrix protein 125 1rieA b.33 ISP domain 127 1khcA b.34 SH3-like barrel 137 1b8qA b.36 PDZ domain-like 127 1m5qA b.38 Sm-like fold 123 1whiA b.39 Ribosomal protein L14 122 1styA b.40 OB-fold 137 1ugjA b.41 PRC-barrel domain 141 1bfgA b.42 beta-Trefoil 126 1n05A b.43 Reductase/isomerase/elongation factor common domain 142 1flmA b.45 Split barrel-like 122 1ezxC b.47 Trypsin-like serine proteases 140 1uw7A b.140 Replicase NSP9 122 1p6vA b.111 Small protein B (SmpB) 125 1baiA b.50 Acid proteases 124 1bw3A b.52 Double psi beta-barrel 125 1e50B b.54 Core binding factor beta, CBF 130 1droA b.55 PH domain-like barrel 122 1dzkA b.60 Lipocalins 148 1luqB b.61 Streptavidin-like 120 1t2wA b.100 Sortase 145 1m6pA b.64 Mannose 6-phosphate receptor domain 146 1f3uB b.65 triple barrel 139 1ut7A b.143 NAC domain 147 1p4pA b.76 open-sided beta-meander 140 1vboA b.77 beta-Prism I 148 1m8nA b.81 Single-stranded left-handed beta-helix 120 1jopA b.82 Double-stranded beta-helix 140 1hcxA b.109 beta-hairpin stack 127 1hpcA b.84 Barrel-sandwich hybrid 131 4ubpB b.85 beta-clip 122 1at0A b.86 Hedgehog/intein (Hint) domain 142 1jhcA b.87 LexA/Signal peptidase 130 1l1dA b.88 Mss4-like 142 1qqhA b.91 E2 regulatory, transactivation domain 144 1n0eA b.129 Double-split beta-barrel 141 1oa8A b.145 AXH domain 128 1lsuA c.2 NAD(P)-binding Rossmann-fold domains 134 1dk7A c.8 The "swivelling" beta/beta/alpha domain 146 1jj2X c.9 Barstar-like 142 1jj2K c.12 Ribosomal proteins L15p and L18e 145 1wf6A c.15 BRCT domain 132 1di0A c.16 Lumazine synthase 148 1j3aA c.21 Ribosomal protein L13 129 1jbeA c.23 Flavodoxin-like 126 1b93A c.24 Methylglyoxal synthase-like 148 1cozA c.26 Adenine nucleotide alpha hydrolase-like 126 1o4wA c.120 PIN domain-like 123 1o1xA c.121 Ribose/Galactose isomerase RpiB/AlsB 142 1ns5A c.116 alpha/beta knot 149 1xpjA c.108 HAD-like 124 1kjnA c.115 Hypothetical protein MTH777 (MT0777) 148 1kagB c.37 P-loop containing nucleoside triphosphate hydrolases 149 1em8A c.128 DNA polymerase III chi subunit 147 1jkeA c.110 DTD-like 145 1p8aA c.44 Phosphotyrosine protein phosphatases I-like 146 1mkpA c.45 (Phosphotyrosine protein) phosphatases II 144 1t3kA c.46 Rhodanese/Cell cycle control phosphatase 132 1faaA c.47 Thioredoxin fold 121 1rzwA c.131 Peptidyl-tRNA hydrolase II 123 1w0kG c.49 Pyruvate kinase C-terminal domain-like 122 1v95A c.51 Anticodon-binding domain-like 130 1vsrA c.52 Restriction endonuclease-like 134 2rslB c.53 Resolvase-like 120 1pdoA c.54 PTS system fructose IIA component-like 129 1wshA c.55 Ribonuclease H-like motif 148 1nulA c.61 PRTase-like 142 1ogdA c.133 RbsD-like 131 1tjnA c.92 Chelatase-like 125 1uwzA c.97 Cytidine deaminase-like 130 1jbsA d.1 Microbial ribonucleases 149 3lztA d.2 Lysozyme-like 129 1mz8B d.4 His-Me finger endonucleases 131 1dy5A d.5 RNase A-like 124 1ub1A d.10 DNA-binding domain 125 1fitA d.13 HIT-like 124 1l2wA d.198 Secretion chaperone-like 122 1rk8B d.232 Mago nashi protein 127 1fjgI d.14 Ribosomal protein S5 domain 2-like 127 1wj4A d.15 beta-Grasp (ubiquitin-like) 124 1idpA d.17 Cystatin-like 147 1ktuA d.221 Nuclease A inhibitor (NuiA) 143 1jb0D d.187 Photosystem I subunit PsaD 138 2aakA d.20 UBC-like 150 1vkbA d.269 Gamma-glutamyl cyclotransferase-like 148 1qveA d.24 Pili subunits 126 1gpqA d.233 Inhibitor of vertebrate lysozyme, Ivy 127 1n1aA d.26 FKBP-like 121 1f9zA d.32 Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase 128 1bi7B d.211 beta-hairpin-alpha-hairpin repeat 125 1ozbA d.33 SecB-like 144 1l3gA d.34 DNA-binding domain of Mlu1-box binding protein MBP1 123 1lo7A d.38 Thioesterase/thiol ester dehydrase-isomerase 140 1wkiA d.41 alpha/beta-Hammerhead 141 1buoA d.42 POZ domain 121 1tfeA d.43 EF-Ts domain-like 142 1whnA d.50 dsRBD-like 128 1mzgA d.224 SufE/NifU 140 1nr3A d.236 DNA-binding protein Tfx 122 1k1gA d.51 Eukaryotic type KH-domain (KH-domain type I) 122 1jj2Q d.55 Ribosomal protein L22 150 1h6hA d.189 PX domain 143 1jnrB d.58 Ferredoxin-like 149 1bowA d.60 Probable bacterial effector-binding domain 143 1xkoA d.252 CheC-like 150 1f32A d.62 Pepsin inhibitor-3 127 2if1A d.64 eIF1-like 126 1v7oB d.67 RRF/tRNA synthetase additional domain-like 150 1jqwA d.185 LuxS/MPP-like metallohydrolase 149 1whrA d.68 IF3-like 124 1lr0A d.212 TolA/TonB C-terminal domain 123 3rubS d.73 RuBisCO, small subunit 123 1jj2D d.77 RL5-like 140 1qu9A d.79 Bacillus chorismate mutase-like 126 1vmhA d.273 YjbQ-like 129 1otgA d.80 Tautomerase/MIF 125 1ly7A d.82 N domain of copper amine oxidase-like 121 1usuB d.83 Aha1/BPI domain-like 132 1zdhA d.85 RNA bacteriophage capsid protein 129 2tbdA d.89 Origin of replication-binding domain, RBD-like 134 1veaA d.275 Hut operon positive regulatory protein HutP 143 1rylB d.276 Hypothetical protein yfbM 149 1c7kA d.92 Zincin-like 132 1mw4A d.93 SH2-like 120 1n3fA d.95 Homing endonuclease-like 149 1b66A d.96 T-fold 138 1rpuA d.255 Tombusvirus P19 core protein, VP19 139 2nefA d.102 Regulatory factor Nef 136 1qndA d.106 SCP-like 123 1v2bA d.107 Mog1p/PsbP-like 148 1bo4A d.108 Acyl-CoA N-acyltransferases (Nat) 137 2vikA d.109 Gelsolin-like 126 1pneA d.110 Profilin-like 139 1cfeA d.111 PR-1-like 135 1a6jA d.112 Phoshotransferase/anion transport protein 150 1punA d.113 Nudix 129 1dbxA d.116 YbaK/ProRS associated domain 150 1lbaA d.118 N-acetylmuramoyl-L-alanine amidase-like 146 1id0A d.122 ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase 146 1v5sA d.129 TBP-like 126 1vjlA d.257 Hypothetical protein TM0160 140 1ckvA d.137 Monooxygenase (hydroxylase) regulatory protein 141 1jw3A d.208 MTH1598-like 140 1n2fA d.227 OsmC-like 142 1seiA d.140 Ribosomal protein S8 130 1ozjA d.164 SMAD MH1 domain 126 1hufA d.195 YopH tyrosine phosphatase N-terminal domain 123 2defA d.167 Peptide deformylase 146 1qddA d.169 C-type lectin-like 144 1o22A d.238 Hypothetical protein TM0875 146 1svjA d.220 Metal cation-transporting ATPase, ATP-binding domain N 136 1pc6A d.262 NinB 141 1knzB e.34 NSP3 homodimer 138 1r2dA f.1 Toxins' membrane translocation domains 142 1v54D f.23 Single transmembrane helix 144 1c17M f.18 F1F0 ATP synthase subunit A 142 1orsC f.14 Voltage-gated potassium channels 132 1oedA f.36 Neurotransmitter-gated ion-channel transmembrane pore 127 1vf5B f.32 a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 138 1nekC f.21 Heme-binding four-helical bundle 129 1kb9G f.27 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 125 1r5sA f.50 Connexin43 132 1qjpA f.4 Transmembrane beta-barrels 137 1u2mC f.48 OmpH-like 137 1ploA g.7 Snake toxin-like 122 1hcfA g.17 Cystine-knot cytokines 121 2bbkL g.21 Methylamine dehydrogenase, L chain 124 1wirA g.37 beta-beta-alpha zinc fingers 121 1e31A g.52 Inhibitor of apoptosis (IAP) repeat 136 1j1eF h.1 Parallel coiled-coil 141 1qu1A h.3 Stalk segment of viral fusion proteins 133 1xq8A h.7 Synuclein 140 1iblE i.1 Ribosome and ribosomal fragments 150 1qo1G i.3 ATP synthase 122 1c51D i.5 Photosystems 125 1dylA i.6 Viruses and virus-receptor complexes 149 1wcmH i.8 RNA polymerase 133 1i84T i.15 Muscle protein complexes 148 1w63Q i.23 clathrin assemblies 149 1ekyA i.11 Computational models partly based on experimental data 129 1qtxA k.21 Calmodulin 148 1n0rA k.37 Artificial ankyrin repeat proteins 126