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
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




Representatives:
e1n62B2[B:6-146]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.09Å
e1vlbA4[A:194-310]
nonrep
Image
Pymol
Jmol Links:
PDB,
SCOP,
CATH, PubMed,
DOI
ALDEHYDE OXIDOREDUCTASE ; X-RAY DIFFRACTION 1.28Å
e8j79B7[B:529-692] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.99Å
e1dgjA4[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; X-RAY DIFFRACTION 2.8Å
e1sijA4[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; X-RAY DIFFRACTION 2.3Å
e1n5xA6[A:537-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; ligands: TEI ; X-RAY DIFFRACTION 2.8Å
e1fo4A6[A:537-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; ligands: GOL ; X-RAY DIFFRACTION 2.1Å
e1vdvB6[B:537-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL,YSH ; X-RAY DIFFRACTION 1.98Å
e1n5xB6[B:537-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; ligands: TEI ; X-RAY DIFFRACTION 2.8Å
e1fo4B6[B:537-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; ligands: GOL ; X-RAY DIFFRACTION 2.1Å
e1vdvA6[A:537-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL,YSH ; X-RAY DIFFRACTION 1.98Å
e1v97B6[B:537-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; ligands: FYX,GOL ; X-RAY DIFFRACTION 1.94Å
e3b9jC2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE OXIDASE ; X-RAY DIFFRACTION 2.3Å
e1fiqC2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE OXIDASE ; X-RAY DIFFRACTION 2.5Å
e1jrpD2[D:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
xanthine dehydrogenase, chain B ; X-RAY DIFFRACTION 3.00Å
e1jrpH2[H:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
xanthine dehydrogenase, chain B ; X-RAY DIFFRACTION 3.00Å
e1jrpF2[F:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
xanthine dehydrogenase, chain B ; X-RAY DIFFRACTION 3.00Å
e1jrpB2[B:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
xanthine dehydrogenase, chain B ; X-RAY DIFFRACTION 3.00Å
e1jroF2[F:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
xanthine dehydrogenase, chain B ; X-RAY DIFFRACTION 2.70Å
e1jroH2[H:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
xanthine dehydrogenase, chain B ; X-RAY DIFFRACTION 2.70Å
e1jroD2[D:2-123] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
xanthine dehydrogenase, chain B ; X-RAY DIFFRACTION 2.70Å
e1n60B2[B:7-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.19Å
e1ffvB2[B:7-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CUTL, MOLYBDOPROTEIN OF CARBON MONOXIDE DEHYDROGENASE ; X-RAY DIFFRACTION 2.25Å
e1n5wB2[B:6-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.49Å
e1n63B2[B:6-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.21Å
e1n5wE2[E:15-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.49Å
e1n60E2[E:14-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.19Å
e1n62E2[E:14-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.09Å
e1ffvE2[E:7-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CUTL, MOLYBDOPROTEIN OF CARBON MONOXIDE DEHYDROGENASE ; X-RAY DIFFRACTION 2.25Å
e1ffuB2[B:7-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CUTL, MOLYBDOPROTEIN OF CARBON MONOXIDE DEHYDROGENASE ; X-RAY DIFFRACTION 2.35Å
e1n63E2[E:15-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.21Å
e1n61B2[B:6-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.3Å
e1n61E2[E:15-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.3Å
e1ffuE2[E:7-143] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CUTL, MOLYBDOPROTEIN OF CARBON MONOXIDE DEHYDROGENASE ; X-RAY DIFFRACTION 2.35Å
e1zxiB2[B:6-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.7Å
e1t3qE2[E:1-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
quinoline 2-oxidoreductase large subunit ; ligands: SO4 ; X-RAY DIFFRACTION 1.80Å
e1sb3A2[A:9-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
4-HYDROXYBENZOYL-COA REDUCTASE ALPHA SUBUNIT ; X-RAY DIFFRACTION 2.2Å
e1sb3D2[D:9-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
4-HYDROXYBENZOYL-COA REDUCTASE ALPHA SUBUNIT ; X-RAY DIFFRACTION 2.2Å
e1rm6D2[D:9-133] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
4-HYDROXYBENZOYL-COA REDUCTASE ALPHA SUBUNIT ; ligands: EPE,NA,SO4 ; X-RAY DIFFRACTION 1.6Å
e3fahA4[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; X-RAY DIFFRACTION 1.72Å
e3am9A6[A:537-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: FYO ; X-RAY DIFFRACTION 2.17Å
e2w3rB2[B:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 2.70Å
e2ckjA3[A:558-695] Image Pymol Jmol Links: PDB, SCOP, CATH
XANTHINE OXIDOREDUCTASE ; X-RAY DIFFRACTION 3.59Å
e3sr6C2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.1Å
e1zxiE2[E:15-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Carbon monoxide dehydrogenase large chain ; X-RAY DIFFRACTION 1.7Å
e2w54F2[F:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 3.30Å
e2w54H2[H:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 3.30Å
e2w55H2[H:2-125] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 3.40Å
e3etrC2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.20Å
e3eubC2[C:572-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.6Å
e3eub42[4:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.6Å
e2e3tA3[A:536-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: PO4 ; X-RAY DIFFRACTION 2.28Å
e3b9jK2[K:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE OXIDASE ; X-RAY DIFFRACTION 2.3Å
e3etrN2[N:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.20Å
e3eubL2[L:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.6Å
e3eubU2[U:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.6Å
e3fc4A4[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; X-RAY DIFFRACTION 1.79Å
e3l4pA4[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Aldehyde oxidoreductase ; ligands: CA,CL,IPA ; X-RAY DIFFRACTION 1.45Å
e3nrzC2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; X-RAY DIFFRACTION 1.8Å
e3ns1C2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; X-RAY DIFFRACTION 2.6Å
e3nrzL2[L:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; X-RAY DIFFRACTION 1.8Å
e3ns1L2[L:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; X-RAY DIFFRACTION 2.6Å
e3nvvC2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; X-RAY DIFFRACTION 1.82Å
e3nvwC2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.6Å
e3nvyC2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: QUE ; X-RAY DIFFRACTION 2.0Å
e3nvzC2[C:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.6Å
e3an1B3[B:536-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 1.73Å
e3nvvL2[L:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; X-RAY DIFFRACTION 1.82Å
e3nvwL2[L:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.6Å
e3nvyL2[L:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: QUE ; X-RAY DIFFRACTION 2.0Å
e3nvzL2[L:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.6Å
e3sr6L2[L:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.1Å
e3hrdA1[A:2-127] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
NICOTINATE DEHYDROGENASE LARGE MOLYBDOPTERIN SUBUNIT ; ligands: NIO ; X-RAY DIFFRACTION 2.2Å
e3hrdE1[E:1-126] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
NICOTINATE DEHYDROGENASE LARGE MOLYBDOPTERIN SUBUNIT ; ligands: NIO ; X-RAY DIFFRACTION 2.2Å
e3ax7A7[A:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 2.34Å
e3ax7B6[B:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 2.34Å
e3ax9A6[A:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 2.30Å
e3ax9B6[B:571-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 2.30Å
e4c7yA4[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; X-RAY DIFFRACTION 1.57Å
e4c7zA4[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; ligands: MG ; X-RAY DIFFRACTION 1.55Å
e4c80A4[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; ligands: NA ; X-RAY DIFFRACTION 1.50Å
e3uncA12[A:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 1.65Å
e3uniB12[B:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 2.2Å
e3unaB12[B:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 1.9Å
e3uniA12[A:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 2.2Å
e3uncB6[B:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 1.65Å
e3unaA19[A:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 1.9Å
e3an1A13[A:530-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 1.73Å
e2e1qB13[B:531-689] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.6Å
e2e1qD13[D:531-689] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.6Å
e2e1qC16[C:531-689] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.6Å
e3am9B13[B:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: FYO,GOL ; X-RAY DIFFRACTION 2.17Å
e3amzA11[A:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 2.1Å
e3amzB16[B:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE/OXIDASE ; ligands: GOL ; X-RAY DIFFRACTION 2.1Å
e3zyvA15[A:537-692] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
AOX3 ; X-RAY DIFFRACTION 2.54Å
e3bdjA13[A:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 2.0Å
e3bdjB13[B:531-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 2.0Å
e3zyvC19[C:537-692] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
AOX3 ; X-RAY DIFFRACTION 2.54Å
e3zyvD19[D:537-692] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
AOX3 ; X-RAY DIFFRACTION 2.54Å
e2e3tB16[B:537-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.28Å
e1wygA13[A:530-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: PO4 ; X-RAY DIFFRACTION
e2e1qA13[A:531-689] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.6Å
e2ckjB13[B:530-689] Image Pymol Jmol Links: PDB, SCOP, CATH
XANTHINE OXIDOREDUCTASE ; X-RAY DIFFRACTION 3.59Å
e2ckjC16[C:530-689] Image Pymol Jmol Links: PDB, SCOP, CATH
XANTHINE OXIDOREDUCTASE ; X-RAY DIFFRACTION 3.59Å
e2ckjD11[D:530-689] Image Pymol Jmol Links: PDB, SCOP, CATH
XANTHINE OXIDOREDUCTASE ; X-RAY DIFFRACTION 3.59Å
e2w3rH3[H:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 2.70Å
e2w3sD3[D:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 2.60Å
e2w3sF3[F:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 2.60Å
e2w54D3[D:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 3.30Å
e2w3sB3[B:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 2.60Å
e2w3rF3[F:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 2.70Å
e2w54B3[B:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 3.30Å
e2w55D3[D:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 3.40Å
e2w3rD3[D:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 2.70Å
e2w55B3[B:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 3.40Å
e2w3sH3[H:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 2.60Å
e2w55F3[F:2-124] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
XANTHINE DEHYDROGENASE ; X-RAY DIFFRACTION 3.40Å
e3zyvB5[B:537-692] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
AOX3 ; X-RAY DIFFRACTION 2.54Å
e4us8A1[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; ligands: HBX,MG,PGE ; X-RAY DIFFRACTION 1.49Å
e4us9A1[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; ligands: 3PL ; X-RAY DIFFRACTION 1.40Å
e4usaA1[A:194-310] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDOREDUCTASE ; ligands: HCI ; X-RAY DIFFRACTION 1.13Å
e4ytzB3[B:536-694] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.300Å
e4ytzA4[A:530-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.300Å
e4yswA6[A:530-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 1.99Å
e4yswB1[B:530-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 1.99Å
e4ytyB4[B:530-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 2.2Å
e4yrwB4[B:536-680] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 1.990Å
e4yrwA6[A:530-688] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 1.990Å
e4uhwA3[A:537-696] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDASE ; ligands: MLI ; X-RAY DIFFRACTION 2.60Å
e4uhxA6[A:537-696] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
ALDEHYDE OXIDASE ; ligands: LZU,MLI,RTZ ; X-RAY DIFFRACTION 2.70Å
e4zohA2[A:1-107] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Putative oxidoreductase molybdopterin-binding subunit ; ligands: ACY ; X-RAY DIFFRACTION 2.20Å
e5epgA4[A:537-696] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Aldehyde oxidase ; X-RAY DIFFRACTION 3.370Å
e5g5gC3[C:25-135] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PUTATIVE XANTHINE DEHYDROGENASE YAGS FAD-BINDING SUBUNIT ; ligands: GOL,IOD ; X-RAY DIFFRACTION 1.70Å
e5y6qC1[C:28-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Aldehyde oxidase large subunit ; ligands: SO4 ; X-RAY DIFFRACTION 2.50Å
e6q6qA6[A:537-701] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Aldehyde oxidase ; ligands: MLI ; X-RAY DIFFRACTION 3.10Å
e6ajuA6[A:530-692] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.94Å
e6ac4A2[A:530-693] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.19Å
e6ac4B3[B:530-693] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.19Å
e6a7xB3[B:530-692] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.15Å
e6abuB6[B:530-692] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.77Å
e6ac1B8[B:530-692] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.77Å
e6ad4B5[B:530-692] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.80Å
e6adjA8[A:530-693] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.18Å
e6adjB3[B:530-692] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.18Å
e6ajuF5[F:530-693] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.94Å
e4ytyA8[A:530-693] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Xanthine dehydrogenase/oxidase ; ligands: GOL ; X-RAY DIFFRACTION 2.2Å
e6a7xA8[A:530-693] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 2.15Å
e6abuA7[A:530-693] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.77Å
e6ac1A8[A:530-693] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.77Å
e6ad4A9[A:530-693] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.80Å
e7dqxA2[A:21-180] Image Pymol Jmol Links: PDB, SCOP, CATH
6-hydroxypseudooxynicotine dehydrogenase complex subunit gamma ; X-RAY DIFFRACTION 3.43Å
e7dqxD1[D:21-180] Image Pymol Jmol Links: PDB, SCOP, CATH
6-hydroxypseudooxynicotine dehydrogenase complex subunit gamma ; X-RAY DIFFRACTION 3.43Å
e7px0A5[A:509-675] Image Pymol Jmol Links: PDB, SCOP, CATH
Aldehyde oxidase 1 ; ligands: GOL,PEG ; X-RAY DIFFRACTION 2.20Å
e7px0B4[B:509-675] Image Pymol Jmol Links: PDB, SCOP, CATH
Aldehyde oxidase 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.20Å
e7px0C3[C:509-675] Image Pymol Jmol Links: PDB, SCOP, CATH
Aldehyde oxidase 1 ; ligands: GOL ; X-RAY DIFFRACTION 2.20Å
e7px0D1[D:519-675] Image Pymol Jmol Links: PDB, SCOP, CATH
Aldehyde oxidase 1 ; ligands: GOL,NH4 ; X-RAY DIFFRACTION 2.20Å
e8hxmA6[A:529-692] Image Pymol Jmol Links: PDB, SCOP, CATH
e8hxmB2[B:529-692] Image Pymol Jmol Links: PDB, SCOP, CATH
e8emtB5[B:578-703] Image Pymol Jmol Links: PDB, SCOP, CATH
Aldehyde oxidase ; ELECTRON MICROSCOPY
e8emtA4[A:537-551,A:580-700] Image Pymol Jmol Links: PDB, SCOP, CATH
Aldehyde oxidase ; ELECTRON MICROSCOPY
e8j79A7[A:529-692] Image Pymol Jmol Links: PDB, SCOP, CATH
Xanthine dehydrogenase/oxidase ; X-RAY DIFFRACTION 1.99Å
e1rm6A2[A:9-133]
nonrep
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4-HYDROXYBENZOYL-COA REDUCTASE ALPHA SUBUNIT ; ligands: NA ; X-RAY DIFFRACTION 1.6Å
e1t3qB2[B:1-165]
nonrep
Image
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CATH, PubMed,
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quinoline 2-oxidoreductase large subunit ; ligands: SO4 ; X-RAY DIFFRACTION 1.80Å

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