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
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
Representatives:
e1gteA5[A:184-287,A:441-532] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.650Å
e4ylfB1[B:142-234,B:406-468] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase subunit A ; ligands: FAD,PO4,SF4 ; X-RAY DIFFRACTION 2.3Å
e4ylfD1[D:142-234,D:406-468] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase subunit A ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.3Å
e4yryB1[B:142-234,B:406-468] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase subunit A ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.4Å
e4yryD1[D:142-234,D:406-468] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase subunit A ; ligands: FAD,NAD,SF4 ; X-RAY DIFFRACTION 2.4Å
e5jcaL2[L:156-248,L:418-472] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
NADH-dependent Ferredoxin:NADP Oxidoreductase (NfnI) subunit alpha ; ligands: FAD,GOL,NDP,SF4 ; X-RAY DIFFRACTION 1.5Å
e5jfcL2[L:156-248,L:418-472] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
NADH-dependent Ferredoxin:NADP Oxidoreductase subunit alpha ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.589Å
e5vj7A3[A:156-248,A:419-473] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Oxidoreductase ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.55Å
e1gt8A5[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 3.300Å
e1gt8B5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP ; X-RAY DIFFRACTION 3.300Å
e1gt8C5[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 3.300Å
e1gt8D5[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 3.300Å
e1gteB5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.650Å
e1gteC5[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.650Å
e1gteD5[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.650Å
e1gthA5[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 2.250Å
e1gthB5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 2.250Å
e1gthC5[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 2.250Å
e1gthD5[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 2.250Å
e1h7wA5[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.900Å
e1h7wB5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.900Å
e1h7wC5[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.900Å
e1h7wD5[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.900Å
e1h7xA5[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 2.000Å
e1h7xB5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 2.000Å
e1h7xC5[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 2.000Å
e1h7xD5[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DIHYDROPYRIMIDINE DEHYDROGENASE ; ligands: FAD,NDP,SF4 ; X-RAY DIFFRACTION 2.000Å
e7ljsD4[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.99Å
e7ljsB5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.99Å
e7ljtB5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.980Å
e7ljtC5[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.980Å
e7ljtD2[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.980Å
e7ljuC5[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.870Å
e7ljuD1[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.870Å
e7ljuB4[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.870Å
e7ljsA1[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.99Å
e7ljsC5[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 1.99Å
e7ljtA3[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.980Å
e7ljuA2[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.870Å
e7m31D2[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,PRO,SF4 ; X-RAY DIFFRACTION 1.690Å
e7m31A1[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,PRO,SF4 ; X-RAY DIFFRACTION 1.690Å
e7m31C5[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,PRO,SF4 ; X-RAY DIFFRACTION 1.690Å
e7m32C1[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: ALA,FAD,LEU,PRO,SF4 ; X-RAY DIFFRACTION 1.820Å
e7m31B4[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,PRO,SF4 ; X-RAY DIFFRACTION 1.690Å
e7m32A1[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: ALA,FAD,LEU,PRO,SF4 ; X-RAY DIFFRACTION 1.820Å
e7m32B5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: ALA,FAD,LEU,PRO,SF4 ; X-RAY DIFFRACTION 1.820Å
e7m32D4[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: ALA,FAD,LEU,PRO,SF4 ; X-RAY DIFFRACTION 1.820Å
e8f61A3[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.14Å
e8f61C2[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.14Å
e8f6nA1[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.12Å
e8f6nC1[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.12Å
e8f5wA3[A:184-287,A:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.97Å
e8f5wB5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.97Å
e8f5wC3[C:184-287,C:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.97Å
e8f5wD2[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,NAP,SF4 ; X-RAY DIFFRACTION 1.97Å
e8f61B3[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.14Å
e8f61D1[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.14Å
e8f6nB5[B:184-287,B:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD,SF4 ; X-RAY DIFFRACTION 2.12Å
e8f6nD2[D:184-287,D:441-532] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Dihydropyrimidine dehydrogenase [NADP(+)] ; ligands: FAD ; X-RAY DIFFRACTION 2.12Å
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
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