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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative


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Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

alpha bundlesalpha-helix bundles with mainly parallel helices

X: all-alpha NTP pyrophosphatases
H: all-alpha NTP pyrophosphatases
T: MazG-related
F: PRA-PH

PF01503 CL0231

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:

e1yvwA1[A:4-95] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

PHOSPHORIBOSYL-ATP PYROPHOSPHATASE , X-RAY DIFFRACTION 2.6Å

e1yvwB1[B:4-95] Image Pymol Jmol Links: PDB, SCOP, CATH

PHOSPHORIBOSYL-ATP PYROPHOSPHATASE , X-RAY DIFFRACTION 2.6Å

Domain assembly:

e1yvwB1[B:4-95] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

PHOSPHORIBOSYL-ATP PYROPHOSPHATASE , X-RAY DIFFRACTION 2.6Å

e1yvwA1[A:4-95] Image Pymol Jmol Links: PDB, SCOP, CATH

PHOSPHORIBOSYL-ATP PYROPHOSPHATASE , X-RAY DIFFRACTION 2.6Å

F: Unmapped domains

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