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:
e1n4wA2[A:9-318,A:451-507] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,GOL,MN ; X-RAY DIFFRACTION 0.92Å
e1b8sA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROTEIN (CHOLESTEROL OXIDASE) ; ligands: FAD ; X-RAY DIFFRACTION 1.65Å
e1cboA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROTEIN (CHOLESTEROL OXIDASE) ; ligands: FAD ; X-RAY DIFFRACTION 1.65Å
e3b3rA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAE,GOL,SO4 ; X-RAY DIFFRACTION 0.98Å
e1cc2A2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROTEIN (CHOLESTEROL OXIDASE) ; ligands: FAD ; X-RAY DIFFRACTION 2.2Å
e3b6dA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAE,SO4 ; X-RAY DIFFRACTION 1.20Å
e1n4vA2[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,GOL ; X-RAY DIFFRACTION 1.0Å
e1b4vA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PROTEIN (CHOLESTEROL OXIDASE) ; ligands: FAD ; X-RAY DIFFRACTION 1.5Å
e1mxtA2[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CHOLESTEROL OXIDASE ; ligands: FAE,OXY,SO4 ; X-RAY DIFFRACTION 0.95Å
e1n4uA2[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAE,GOL,OXY,PO4 ; X-RAY DIFFRACTION 0.950Å
e2gewA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,OXY ; X-RAY DIFFRACTION 0.970Å
e3cnjA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,SO4 ; X-RAY DIFFRACTION 0.95Å
e1n1pA2[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,GOL,MN ; X-RAY DIFFRACTION 0.95Å
e1ijhA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CHOLESTEROL OXIDASE ; ligands: FAD ; X-RAY DIFFRACTION 1.52Å
e3gyiA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,SO4 ; X-RAY DIFFRACTION 1.0Å
e3gyjA2[A:9-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,SO4 ; X-RAY DIFFRACTION 0.92Å
e4u2lA2[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: SFD,SO4 ; X-RAY DIFFRACTION 1.320Å
e4u2sA2[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FDA,SO4 ; X-RAY DIFFRACTION 1.120Å
e4u2tA2[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,SO4 ; X-RAY DIFFRACTION 1.223Å
e4rekA2[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,PO4 ; X-RAY DIFFRACTION 0.740Å
e1coyA2[A:10-318,A:451-506] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
CHOLESTEROL OXIDASE ; ligands: AND,FAD ; X-RAY DIFFRACTION
e4xwrA1[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD,SO4 ; X-RAY DIFFRACTION 1.100Å
e4xxgA1[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD ; X-RAY DIFFRACTION 0.850Å
e5kwfA2[A:9-318,A:451-507] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Cholesterol oxidase ; ligands: FAD ; NEUTRON DIFFRACTION 1.4990Å
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