Evolutionary classification of protein domain structures
alpha arraysalpha-helix arrays with mainly perpendicular helices
alpha bundlesalpha-helix bundles with mainly parallel helices
Representatives:
e1y6xA1[A:7-93] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 1.25Å
e3c90A1[A:7-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 1.79Å
e1yxbA1[A:4-90] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e3c90X1[X:7-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 1.79Å
e1yxbG1[G:4-90] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e1yxbC1[C:4-90] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e1yxbF1[F:4-90] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e1yxbD1[D:4-90] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e1yxbE1[E:4-90] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e3c90C1[C:7-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 1.79Å
e1yxbB1[B:4-90] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e3c90B1[B:7-93] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 1.79Å
e1yxbH1[H:4-90] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e2a7wC2[C:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wA1[A:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wB1[B:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wD1[D:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wE1[E:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wF1[F:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wG1[G:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wH1[H:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wI1[I:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wJ1[J:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wK1[K:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e2a7wL1[L:4-94] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.8Å
e1yvwC1[C:4-95] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e1yvwD1[D:4-95] Image Pymol Jmol Links: PDB, SCOP, CATH
PHOSPHORIBOSYL-ATP PYROPHOSPHATASE ; X-RAY DIFFRACTION 2.6Å
e6j22A2[A:111-201] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Histidine biosynthesis bifunctional protein HisIE ; X-RAY DIFFRACTION 2.2Å
e6j22B2[B:111-201] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Histidine biosynthesis bifunctional protein HisIE ; X-RAY DIFFRACTION 2.2Å
e6j2lA2[A:111-201] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Histidine biosynthesis bifunctional protein HisIE ; ligands: ZN ; X-RAY DIFFRACTION 2.17Å
e6j2lB2[B:111-201] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Histidine biosynthesis bifunctional protein HisIE ; ligands: MG ; X-RAY DIFFRACTION 2.17Å
e7bgmA2[A:170-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Phosphoribosyl-AMP cyclohydrolase ; ligands: ZN ; X-RAY DIFFRACTION 1.60Å
e7bgmB2[B:170-265] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Phosphoribosyl-AMP cyclohydrolase ; ligands: ZN ; X-RAY DIFFRACTION 1.60Å
e7bgnA2[A:170-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Phosphoribosyl-AMP cyclohydrolase ; ligands: AMP,MG,ZN ; X-RAY DIFFRACTION 2.70Å
e7bgnB2[B:170-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Phosphoribosyl-AMP cyclohydrolase ; ligands: AMP,ZN ; X-RAY DIFFRACTION 2.70Å
e7bgnC2[C:170-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Phosphoribosyl-AMP cyclohydrolase ; ligands: AMP,ZN ; X-RAY DIFFRACTION 2.70Å
e7bgnD2[D:170-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Phosphoribosyl-AMP cyclohydrolase ; ligands: AMP,ZN ; X-RAY DIFFRACTION 2.70Å
e7bgnE2[E:170-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Phosphoribosyl-AMP cyclohydrolase ; ligands: AMP,ZN ; X-RAY DIFFRACTION 2.70Å
e7bgnF2[F:170-264] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI
Phosphoribosyl-AMP cyclohydrolase ; ligands: AMP,GOL,ZN ; X-RAY DIFFRACTION 2.70Å
Domain assembly:
Domain assembly:
Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.
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
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