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:
e1p5zB1[B:20-260] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxycytidine kinase ; ligands: ADP,AR3,MG ; X-RAY DIFFRACTION 1.6Å
e2vp4A1[A:12-208] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DCP ; X-RAY DIFFRACTION 2.2Å
e5lc5O1[O:5-318] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, NDUFA10,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial,NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial ; ELECTRON MICROSCOPY
e2jj8B1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: AZZ,SO4 ; X-RAY DIFFRACTION 2.8Å
e2vp9E1[E:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DOC,SO4 ; X-RAY DIFFRACTION 2.9Å
e1ot3C1[C:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: SO4,THM ; X-RAY DIFFRACTION 2.5Å
e1ot3D1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: SO4,THM ; X-RAY DIFFRACTION 2.5Å
e2vp4B1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DCP ; X-RAY DIFFRACTION 2.2Å
e1oe0C1[C:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: MG,TTP ; X-RAY DIFFRACTION 2.4Å
e2vp9A1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DOC,SO4 ; X-RAY DIFFRACTION 2.9Å
e2vp4C1[C:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DCP ; X-RAY DIFFRACTION 2.2Å
e2vqsB1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: BVD,SO4 ; X-RAY DIFFRACTION 2.9Å
e1ot3H1[H:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: SO4,THM ; X-RAY DIFFRACTION 2.5Å
e2vp9H1[H:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DOC,SO4 ; X-RAY DIFFRACTION 2.9Å
e2vp2B1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DGT ; X-RAY DIFFRACTION 2.5Å
e2vqsD1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: BVD,SO4 ; X-RAY DIFFRACTION 2.9Å
e2vp6H1[H:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: 5FU,SO4 ; X-RAY DIFFRACTION 3.0Å
e2vp6G1[G:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: 5FU,SO4 ; X-RAY DIFFRACTION 3.0Å
e2vp0A1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: MG,TTP ; X-RAY DIFFRACTION 2.2Å
e2vp9G1[G:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DOC,SO4 ; X-RAY DIFFRACTION 2.9Å
e2vp6E1[E:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: 5FU,SO4 ; X-RAY DIFFRACTION 3.0Å
e2vp9D1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DOC,SO4 ; X-RAY DIFFRACTION 2.9Å
e1ot3G1[G:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: SO4,THM ; X-RAY DIFFRACTION 2.5Å
e2vp9B1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DOC,SO4 ; X-RAY DIFFRACTION 2.9Å
e1oe0D1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: MG,TTP ; X-RAY DIFFRACTION 2.4Å
e1oe0A1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: MG,TTP ; X-RAY DIFFRACTION 2.4Å
e2vqsA1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: BVD,SO4 ; X-RAY DIFFRACTION 2.9Å
e2vp6B1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: 5FU,SO4 ; X-RAY DIFFRACTION 3.0Å
e1ot3B1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: SO4,THM ; X-RAY DIFFRACTION 2.5Å
e1ot3F1[F:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: SO4,THM ; X-RAY DIFFRACTION 2.5Å
e2vp6C1[C:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: 5FU,SO4 ; X-RAY DIFFRACTION 3.0Å
e2vp9C1[C:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DOC,SO4 ; X-RAY DIFFRACTION 2.9Å
e2vp6F1[F:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: 5FU,SO4 ; X-RAY DIFFRACTION 3.0Å
e2jj8D1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: AZZ,SO4 ; X-RAY DIFFRACTION 2.8Å
e2vqsC1[C:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: BVD,SO4 ; X-RAY DIFFRACTION 2.9Å
e2vp2A1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DGT ; X-RAY DIFFRACTION 2.5Å
e2vp6A1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: 5FU,SO4 ; X-RAY DIFFRACTION 3.0Å
e2jj8A1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: AZZ,SO4 ; X-RAY DIFFRACTION 2.8Å
e1oe0B1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: MG,TTP ; X-RAY DIFFRACTION 2.4Å
e1ot3A1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: SO4,THM ; X-RAY DIFFRACTION 2.5Å
e1ot3E1[E:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: SO4,THM ; X-RAY DIFFRACTION 2.5Å
e2vp6D1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: 5FU,SO4 ; X-RAY DIFFRACTION 3.0Å
e2jj8C1[C:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: AZZ,SO4 ; X-RAY DIFFRACTION 2.8Å
e2vp0B1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: MG,TTP ; X-RAY DIFFRACTION 2.2Å
e2vp4D1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DCP ; X-RAY DIFFRACTION 2.2Å
e2vp9F1[F:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DOC,SO4 ; X-RAY DIFFRACTION 2.9Å
e2vp5A1[A:18-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DCZ,SO4 ; X-RAY DIFFRACTION 2.3Å
e2vp5B1[B:18-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: DCZ,SO4 ; X-RAY DIFFRACTION 2.3Å
e1j90A1[A:18-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYRIBONUCLEOSIDE KINASE ; ligands: DCZ,SO4 ; X-RAY DIFFRACTION 2.56Å
e2vppA1[A:18-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: GEO,SO4 ; X-RAY DIFFRACTION 2.2Å
e2jcsA1[A:12-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: MG,TTP ; X-RAY DIFFRACTION 2.500Å
e2jcsB1[B:12-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
DEOXYNUCLEOSIDE KINASE ; ligands: MG,TTP ; X-RAY DIFFRACTION 2.500Å
e1zmxG1[G:12-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: SO4,THM ; X-RAY DIFFRACTION 3.1Å
e1zmxH1[H:12-207] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: SO4,THM ; X-RAY DIFFRACTION 3.1Å
e1zm7A1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: TTP ; X-RAY DIFFRACTION 2.2Å
e1zm7D1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: MG,TTP ; X-RAY DIFFRACTION 2.2Å
e1zm7B1[B:12-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: TTP ; X-RAY DIFFRACTION 2.2Å
e1zm7C1[C:12-209] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: TTP ; X-RAY DIFFRACTION 2.2Å
e1zmxA1[A:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: SO4,THM ; X-RAY DIFFRACTION 3.1Å
e1zmxC1[C:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: SO4,THM ; X-RAY DIFFRACTION 3.1Å
e1zmxE1[E:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: SO4,THM ; X-RAY DIFFRACTION 3.1Å
e1zmxB1[B:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: SO4,THM ; X-RAY DIFFRACTION 3.1Å
e1zmxD1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: SO4,THM ; X-RAY DIFFRACTION 3.1Å
e6ybhD1[D:12-208] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: 4PC,GOL,SO4 ; X-RAY DIFFRACTION 2.4Å
e6ybhA1[A:12-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: 4PC,GOL,SO4 ; X-RAY DIFFRACTION 2.4Å
e6ybhB1[B:12-226] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: 4PC,GOL,SO4 ; X-RAY DIFFRACTION 2.4Å
e6ybhC1[C:12-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: 4PC,GOL,SO4 ; X-RAY DIFFRACTION 2.4Å
e6ybhE1[E:12-220] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: 4PC,GOL,SO4 ; X-RAY DIFFRACTION 2.4Å
e6ybhF1[F:12-228] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Deoxynucleoside kinase ; ligands: 4PC,GOL,SO4 ; X-RAY DIFFRACTION 2.4Å
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