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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative


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Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

alpha bundlesalpha-helix bundles with mainly parallel helices

alpha superhelicesrepeating alpha-helix hairpins form a superhelix

alpha duplicates or obligate multimersalpha duplicates or monomers associate together to form a compact domain

alpha complex topologyalpha domain with complex and unique topology that cannot be described as array or bundle or superhelix

beta barrelssingle beta-sheet folded upon itself to form a barrel

X: cradle loop barrel

Refs: Structure 14, 1489-1498; Current opinion in structural biology 18, 358-365

H: RIFT-related
T: acid protease

126354, 3-crossover-4

T: double psi

152436, 2-crossover-3, 5-crossover-6

T: AbrB

122'1'344'3', 2-crossover-3, 2'-crossover-3'

T: Bacterial fluorinating enzyme-C

1265437, 2-crossover-3, 6-crossover-7

T: FMN-binding split barrel

123654, 3-crossover-4

F: Peptidase_C30

PF05409 CL0124

Representatives:

e2ducA2[A:1-186] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Replicase polyprotein 1ab ; X-RAY DIFFRACTION 1.7Å

e7phzB2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH

Replicase polyprotein 1ab ; ligands: CL,DMS,EDO,NA,X77 ; X-RAY DIFFRACTION 1.66Å

e7t2tA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.450Å

e7v1tA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH

3C-like proteinase ; ligands: 5IL ; X-RAY DIFFRACTION 2.560Å

e7wymA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: G7L ; X-RAY DIFFRACTION 2.05Å

e7wypB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: G7O ; X-RAY DIFFRACTION 2.30Å

e7z59A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: EDO,IFO ; X-RAY DIFFRACTION 2.00Å

e7vahA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.490Å

e7vloA2[A:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 4WI ; X-RAY DIFFRACTION 2.02Å

e7mb4A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.83Å

e7mb4D2[D:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.83Å

e7mb4C2[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.83Å

e7mb4B1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.83Å

e7mb5A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.60Å

e7mb6A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 2.21Å

e7mb8A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.62Å

e7mb8C2[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.62Å

e7mb8B1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.62Å

e7mb9B2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.81Å

e7t2uB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-Like Protease ; X-RAY DIFFRACTION 2.100Å

e7t2uC1[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-Like Protease ; X-RAY DIFFRACTION 2.100Å

e7t2vB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-Like Protease ; X-RAY DIFFRACTION 2.470Å

e7t2vC2[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-Like Protease ; X-RAY DIFFRACTION 2.470Å

e7t70A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: DMS,GOL ; X-RAY DIFFRACTION 2.35Å

e7t70B2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: DMS,GOL ; X-RAY DIFFRACTION 2.35Å

e7t8mA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: DMS,GOL ; X-RAY DIFFRACTION 1.6Å

e7t8mB2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: GOL ; X-RAY DIFFRACTION 1.6Å

e7t8rA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: EDO,GOL ; X-RAY DIFFRACTION 1.74Å

e7t9yB2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: GOL ; X-RAY DIFFRACTION 2.18Å

e7ta4B1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.78Å

e7ta7A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: GOL ; X-RAY DIFFRACTION 2.28Å

e7ta7B1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: GOL ; X-RAY DIFFRACTION 2.28Å

e7tb2A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 1.8Å

e7tbtA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 2.45Å

e7tc4A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: GOL ; X-RAY DIFFRACTION 1.94Å

e7tc4B2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: GOL ; X-RAY DIFFRACTION 1.94Å

e7e5xB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 2.190Å

e7e5xC1[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 2.190Å

e7e5xD2[D:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 2.190Å

e7nttA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH

3C-like proteinase ; ligands: NA ; X-RAY DIFFRACTION 1.743Å

e7nttB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH

3C-like proteinase ; ligands: FMT,NA ; X-RAY DIFFRACTION 1.743Å

e7tduA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: I1W ; NEUTRON DIFFRACTION 2.20Å

e7tehA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: I1Z ; X-RAY DIFFRACTION 1.80Å

e7tfrA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: NB2 ; X-RAY DIFFRACTION 1.80Å

e7wo1A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 3XI ; X-RAY DIFFRACTION 2.15Å

e7zb6A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.12Å

e7zb6C1[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase nsp5 ; ligands: DMS ; X-RAY DIFFRACTION 2.12Å

e8dd1A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: K36 ; X-RAY DIFFRACTION 2.03Å

e8dfnB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.04Å

e7en8A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: J7R ; X-RAY DIFFRACTION 1.83Å

e7en9A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: J7O ; X-RAY DIFFRACTION 1.9Å

e7phzA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH

Replicase polyprotein 1ab ; ligands: CL,DMS,EDO,X77 ; X-RAY DIFFRACTION 1.66Å

e7rvmA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7V2 ; X-RAY DIFFRACTION 1.95Å

e7rvnA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7VB,DMS ; X-RAY DIFFRACTION 1.63Å

e7rvoA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7VI ; X-RAY DIFFRACTION 1.80Å

e7rvoB2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7VI ; X-RAY DIFFRACTION 1.80Å

e7rvpA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7VQ ; X-RAY DIFFRACTION 1.90Å

e7rvpB2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7VQ ; X-RAY DIFFRACTION 1.90Å

e7rvqA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7VW ; X-RAY DIFFRACTION 2.47Å

e7rvrA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7W5 ; X-RAY DIFFRACTION 2.46Å

e7rvsA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 81L ; X-RAY DIFFRACTION 1.85Å

e7rvtA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7XK ; X-RAY DIFFRACTION 2.10Å

e7rvtB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7XK ; X-RAY DIFFRACTION 2.10Å

e7rvuA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7XT ; X-RAY DIFFRACTION 2.50Å

e7rvvA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7Y2 ; X-RAY DIFFRACTION 3.00Å

e7rvwA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7YB ; X-RAY DIFFRACTION 1.85Å

e7rvxA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7YI ; X-RAY DIFFRACTION 1.85Å

e7rvxB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7YI ; X-RAY DIFFRACTION 1.85Å

e7rvyA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7YQ ; X-RAY DIFFRACTION 1.85Å

e7rvzA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7YW ; X-RAY DIFFRACTION 1.90Å

e7rw0A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7YZ ; X-RAY DIFFRACTION 1.85Å

e7rw1A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 800 ; X-RAY DIFFRACTION 2.50Å

e7rw1B1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 800 ; X-RAY DIFFRACTION 2.50Å

e7s6wA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 8G9 ; X-RAY DIFFRACTION 2.29Å

e7s6wB2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 8G9 ; X-RAY DIFFRACTION 2.29Å

e7s6xA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: I70 ; X-RAY DIFFRACTION 1.80Å

e7s6yA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 8GW ; X-RAY DIFFRACTION 1.85Å

e7s6zA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: I71 ; X-RAY DIFFRACTION 1.85Å

e7s70A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 8H3 ; X-RAY DIFFRACTION 2.60Å

e7s71A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 8H9 ; X-RAY DIFFRACTION 1.85Å

e7s72A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 8I0 ; X-RAY DIFFRACTION 2.50Å

e7s73A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: I69 ; X-RAY DIFFRACTION 1.85Å

e7s74A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: I68 ; X-RAY DIFFRACTION 1.70Å

e7s74B1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: I68 ; X-RAY DIFFRACTION 1.70Å

e7s75A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 8I7 ; X-RAY DIFFRACTION 1.80Å

e7tuuA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: U88 ; X-RAY DIFFRACTION 1.85Å

e7o46A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: V18 ; X-RAY DIFFRACTION 2.230Å

e7ql8AAA2[AAA:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: CL,I70,NA ; X-RAY DIFFRACTION 1.807Å

e7tiuA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: PO4,V46 ; X-RAY DIFFRACTION 1.56Å

e7tivA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: W48 ; X-RAY DIFFRACTION 1.88Å

e7tj0A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: ACT,S4L ; X-RAY DIFFRACTION 1.95Å

e7tq6A2[A:4-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: IT3,ITG ; X-RAY DIFFRACTION 1.550Å

e7vicA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: ODN ; X-RAY DIFFRACTION 2.100Å

e7vlqA2[A:4-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 4WI ; X-RAY DIFFRACTION 1.93910601486Å

e7vthA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7XB ; X-RAY DIFFRACTION 2.000Å

e7vthB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7XB ; X-RAY DIFFRACTION 2.000Å

e7vvtB2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 80X ; X-RAY DIFFRACTION 2.500Å

e8dfeA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 1.89Å

e8e5xB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: PG4,UO9,URR ; X-RAY DIFFRACTION 1.700Å

e7en8B2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: J7R ; X-RAY DIFFRACTION 1.83Å

e7tq3A1[A:6-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: IS5 ; X-RAY DIFFRACTION 2.000Å

e7tq3B1[B:5-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: IS5 ; X-RAY DIFFRACTION 2.000Å

e7tq4A2[A:6-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: IRZ ; X-RAY DIFFRACTION 2.450Å

e7vvpA1[A:3-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; X-RAY DIFFRACTION 1.97Å

e7vvpB2[B:3-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: 80I ; X-RAY DIFFRACTION 1.97Å

e7x6jA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: QNC ; X-RAY DIFFRACTION 1.500Å

e7zb7A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase nsp5 ; ligands: DMS,GOL ; X-RAY DIFFRACTION 1.63Å

e7zb8A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase nsp5 ; ligands: DMS ; X-RAY DIFFRACTION 2.477Å

e7zb8C1[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase nsp5 ; ligands: DMS ; X-RAY DIFFRACTION 2.477Å

e8ddiA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.80Å

e8e1yA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: 4WI,DMS ; X-RAY DIFFRACTION 2.48Å

e8e1yB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: 4WI,DMS ; X-RAY DIFFRACTION 2.48Å

e7endA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Replicase polyprotein 1a ; ligands: J7R ; X-RAY DIFFRACTION 1.99Å

e7tq2B2[B:3-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: ISG ; X-RAY DIFFRACTION 2.300Å

e7vfbA2[A:12-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 2.0Å

e7tvxA2[A:1-184] Image Pymol Jmol Links: PDB, SCOP, CATH

3C-like proteinase nsp5 ; ligands: G65 ; X-RAY DIFFRACTION 2.094Å

e8d4jA2[A:1-184] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 1.78Å

e7rnwA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 2.350Å

e7rnwD2[D:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; X-RAY DIFFRACTION 2.350Å

e7tiaA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: SCN,XTP ; X-RAY DIFFRACTION 1.57Å

e7tiwA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: I54,PO4 ; X-RAY DIFFRACTION 1.60Å

e7tixA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: Q56 ; X-RAY DIFFRACTION 1.91Å

e7tiyA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: EDO,PO4,Y48 ; X-RAY DIFFRACTION 1.64Å

e7tizA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: EDO,N63,SCN ; X-RAY DIFFRACTION 1.49Å

e7u28A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: 4WI ; X-RAY DIFFRACTION 1.68Å

e7u28B1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: 4WI ; X-RAY DIFFRACTION 1.68Å

e7wo3A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 59S ; X-RAY DIFFRACTION 2.00Å

e7wofA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 5IZ ; X-RAY DIFFRACTION 1.63Å

e7wohA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 5IW ; X-RAY DIFFRACTION 1.6Å

e7wohB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 5IW ; X-RAY DIFFRACTION 1.6Å

e8czxB2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: P8C,PJR ; X-RAY DIFFRACTION 1.650Å

e8dprA2[A:0-186] Image Pymol Jmol Links: PDB, SCOP, CATH

3C-like proteinase nsp5 ; ligands: T43 ; X-RAY DIFFRACTION 2.00Å

e8dz9A2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: 4WI,DMS ; X-RAY DIFFRACTION 1.66Å

e8dz9B2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: 4WI,DMS ; X-RAY DIFFRACTION 1.66Å

e8dz9C2[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: 4WI ; X-RAY DIFFRACTION 1.66Å

e8e61A1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: CL,VLU,VM0 ; X-RAY DIFFRACTION 1.850Å

e7x6kA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 9FF ; X-RAY DIFFRACTION 2.340Å

e7vu6A1[A:3-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7YY ; X-RAY DIFFRACTION 1.800Å

e8czwA1[A:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: P8L,P8U ; X-RAY DIFFRACTION 1.700Å

e8czxA1[A:2-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: P8C,PJR ; X-RAY DIFFRACTION 1.650Å

e8e68A2[A:3-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: WGO,WGU ; X-RAY DIFFRACTION 1.600Å

e7tq2A1[A:3-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: ISG ; X-RAY DIFFRACTION 2.300Å

e7wkuB2[B:0-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidase C30 ; X-RAY DIFFRACTION 2.600Å

e7wkuD2[D:0-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidase C30 ; X-RAY DIFFRACTION 2.600Å

e7wkuE1[E:0-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidase C30 ; X-RAY DIFFRACTION 2.600Å

e7wkuF1[F:0-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidase C30 ; X-RAY DIFFRACTION 2.600Å

e7wqhB2[B:4-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: 80I ; X-RAY DIFFRACTION 2.32Å

e7wkuA2[A:1-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidase C30 ; X-RAY DIFFRACTION 2.600Å

e7wkuC1[C:1-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Peptidase C30 ; X-RAY DIFFRACTION 2.600Å

e7tq5B2[B:3-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: IRW,ITX,PG4 ; X-RAY DIFFRACTION 1.650Å

e7vlpB1[B:3-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Replicase polyprotein 1a ; ligands: 4WI ; X-RAY DIFFRACTION 1.50Å

e7vu6B1[B:3-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 7YY ; X-RAY DIFFRACTION 1.800Å

e8e5xA2[A:3-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: UO9,URR ; X-RAY DIFFRACTION 1.700Å

e8e64B2[B:3-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: WEL,WEQ ; X-RAY DIFFRACTION 1.750Å

e8e65A1[A:3-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: WF5 ; X-RAY DIFFRACTION 1.800Å

e7eneA2[A:1-189] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ORF1a protein ; ligands: J7R ; X-RAY DIFFRACTION 2.98Å

e7eneB2[B:1-189] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ORF1a protein ; ligands: J7R ; X-RAY DIFFRACTION 2.98Å

e7eneC2[C:1-189] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ORF1a protein ; ligands: J7R ; X-RAY DIFFRACTION 2.98Å

e7eneD2[D:1-189] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ORF1a protein ; ligands: J7R ; X-RAY DIFFRACTION 2.98Å

e7vtcA1[A:3-189] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: 4WI ; X-RAY DIFFRACTION 2.53865625155Å

e7wqjA1[A:3-189] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: 80I ; X-RAY DIFFRACTION 2.75Å

e7wqjB1[B:2-189] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; X-RAY DIFFRACTION 2.75Å

e7smvA2[A:1-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: UED ; X-RAY DIFFRACTION 1.93Å

e7smvB2[B:1-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: UED ; X-RAY DIFFRACTION 1.93Å

e7snaA1[A:1-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: UED ; X-RAY DIFFRACTION 2.05Å

e7snaB1[B:1-185] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: UED ; X-RAY DIFFRACTION 2.05Å

e8cztA2[A:-1-189] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: P8L ; X-RAY DIFFRACTION 2.100Å

e8czuA2[A:-1-189] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: P9R ; X-RAY DIFFRACTION 2.700Å

e8czvA1[A:-1-189] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: P8C,PJR ; X-RAY DIFFRACTION 1.950Å

e8dgyA1[A:-1-189] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: S9U,SD6 ; X-RAY DIFFRACTION 1.650Å

e8e6bA2[A:-1-189] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Orf1a protein ; ligands: UO9,URR ; X-RAY DIFFRACTION 1.550Å

e8e6bB1[B:-1-189] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Orf1a protein ; ligands: UO9,URR ; X-RAY DIFFRACTION 1.550Å

e8e6cA2[A:-1-189] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Orf1a protein ; ligands: UTU ; X-RAY DIFFRACTION 2.700Å

e8e6dA2[A:-1-189] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Orf1a protein ; ligands: UTL ; X-RAY DIFFRACTION 2.700Å

e8e6eA2[A:-1-189] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Orf1a protein ; ligands: UUR,UV2 ; X-RAY DIFFRACTION 1.500Å

e7wqhA1[A:2-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3C-like proteinase ; ligands: 80I ; X-RAY DIFFRACTION 2.32Å

e7whcA1[A:7-188] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.269Å

e7whcB1[B:7-188] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.269Å

e7whcC1[C:7-188] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.269Å

e7whcD1[D:7-188] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.269Å

e8drrC2[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.000Å

e8drzA2[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; ligands: 1PE,NA,PEG,TRS ; X-RAY DIFFRACTION 1.980Å

e7setA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase ; ligands: I70 ; X-RAY DIFFRACTION 1.700Å

e8drrA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.000Å

e8drrB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 2.000Å

e8drsA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 1.40Å

e8drsB1[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3C-like proteinase nsp5 ; X-RAY DIFFRACTION 1.40Å

e8druA1[A:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp7-nsp8 (C7) cut site ; ligands: PEG,PO4 ; X-RAY DIFFRACTION 2.31Å

e8druB2[B:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp7-nsp8 (C7) cut site ; ligands: 1PE,PEG,PO4 ; X-RAY DIFFRACTION 2.31Å

e8druC2[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp7-nsp8 (C7) cut site ; ligands: PEG,PO4 ; X-RAY DIFFRACTION 2.31Å

e8druD1[D:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp7-nsp8 (C7) cut site ; ligands: 1PE,PEG,PO4 ; X-RAY DIFFRACTION 2.31Å

e8druE1[E:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp7-nsp8 (C7) cut site ; ligands: 1PE,PEG,PO4 ; X-RAY DIFFRACTION 2.31Å

e8druF2[F:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp7-nsp8 (C7) cut site ; ligands: PEG,PO4 ; X-RAY DIFFRACTION 2.31Å

e8druG2[G:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp7-nsp8 (C7) cut site ; ligands: 1PE,PEG,PO4 ; X-RAY DIFFRACTION 2.31Å

e8drvC1[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp8-nsp9 (C8) cut site ; X-RAY DIFFRACTION 2.200Å

e8drvD2[D:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp8-nsp9 (C8) cut site ; X-RAY DIFFRACTION 2.200Å

e8dryC2[C:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp12-nsp13 (C12) cut site ; X-RAY DIFFRACTION 2.49Å

e8dryD1[D:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp12-nsp13 (C12) cut site ; X-RAY DIFFRACTION 2.49Å

e8dryF1[F:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp12-nsp13 (C12) cut site ; X-RAY DIFFRACTION 2.49Å

e8dryG2[G:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp12-nsp13 (C12) cut site ; X-RAY DIFFRACTION 2.49Å

e8dryH1[H:1-186] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fusion protein of 3C-like proteinase nsp5 and nsp12-nsp13 (C12) cut site ; X-RAY DIFFRACTION 2.49Å

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F: Unmapped domains

Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.

T: Surface presentation of antigens (SPOA)

123654, 3-crossover-4, swapping

T: Alanine racemase-C

125436, 2-crossover-3, 5-crossover-6

T: Aminomethyltransferase beta-barrel domain

143256, 1-crossover-2, 4-crossover-5

T: PUA domain

12543, 2-crossover-3

beta meanderssingle beta-sheet with mainly meander topology

beta sandwichestwo beta-sheets stacked together to form a sandwich

beta duplicates or obligate multimersbeta duplicates or monomers associate together to form a compact domain

beta complex topologybeta domains with complex and unique topology that cannot be described as barrel or sandwich or meander

a+b two layersone alpha-helix layer and one beta-sheet layer

a+b three layersone mainly antiparallel beta-sheet layer sandwiched between two alpha-helix layers

a+b four layerstwo beta-sheet layers sandwiched between two alpha-helix layers

a+b complex topologyalpha and beta domain with complex and unique topology that cannot be described in layers

a+b duplicates or obligate multimersalpha and beta duplicates or monomers associated together to form a compact domain

a/b barrelsrepeating beta-alpha units form a barrel

a/b three-layered sandwichesrepeating beta-alpha units form a sandwich with a mainly parallel beta-sheet layer stacked between two alpha-helix layers

mixed a+b and a/balpha and beta domain consists of both a+b and a/b regions

few secondary structure elementsstabilized by cofactors or disulfides

extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes