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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

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

X: LuxS, MPP, ThrRS/AlaRS common domain

looks like an elaborated ferredoxin

X: C-terminal domain in some PLP-dependent transferases
H: C-terminal domain in some PLP-dependent transferases
T: C-terminal domain in some PLP-dependent transferases
F: Aminotran_3

PF00202 CL0061

Representatives:

e4nogB2[B:339-440] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative ornithine aminotransferase, mitochondrial ; ligands: ACT,BME ; X-RAY DIFFRACTION 1.2Å

e1vefA1[A:306-395] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

ACETYLORNITHINE/ACETYL-LYSINE AMINOTRANSFERASE ; X-RAY DIFFRACTION 1.35Å

e5g4iA2[A:333-440] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PHOSPHOLYASE ; X-RAY DIFFRACTION 1.50Å

e5m4bA2[A:319-436] nonrep Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Aminotransferase class-III ; ligands: 7F7,EDO ; X-RAY DIFFRACTION 1.500Å

e1s0aA1[A:331-429] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Adenosylmethionine-8-amino-7-oxononanoate aminotransferase ; X-RAY DIFFRACTION 1.71Å

e1zodA2[A:326-433] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

2,2-DIALKYLGLYCINE DECARBOXYLASE ; ligands: MES ; X-RAY DIFFRACTION 1.8Å

e3n5mB2[B:341-449] Image Pymol Jmol Links: PDB, SCOP, CATH

Adenosylmethionine-8-amino-7-oxononanoate aminotransferase ; ligands: SO4 ; X-RAY DIFFRACTION 2.05Å

e3n5mD1[D:341-449] Image Pymol Jmol Links: PDB, SCOP, CATH

Adenosylmethionine-8-amino-7-oxononanoate aminotransferase ; ligands: SO4 ; X-RAY DIFFRACTION 2.05Å

e1d7rA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (2,2-DIALKYLGLYCINE DECARBOXYLASE (PYRUVATE)) ; ligands: 5PA ; X-RAY DIFFRACTION 2.0Å

e1d7sA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (2,2-DIALKYLGLYCINE DECARBOXYLASE (PYRUVATE)) ; ligands: DCS ; X-RAY DIFFRACTION 2.05Å

e1d7uA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (2,2-DIALKYLGLYCINE DECARBOXYLASE (PYRUVATE)) ; ligands: LCS ; X-RAY DIFFRACTION 1.95Å

e1d7vA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (2,2-DIALKYLGLYCINE DECARBOXYLASE (PYRUVATE)) ; ligands: NMA ; X-RAY DIFFRACTION 2.80Å

e1dgdA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DIALKYLGLYCINE DECARBOXYLASE ; ligands: MES ; X-RAY DIFFRACTION

e1dgeA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DIALKYLGLYCINE DECARBOXYLASE ; ligands: MES ; X-RAY DIFFRACTION

e1dkaA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

2,2-DIALKYLGLYCINE DECARBOXYLASE (PYRUVATE) ; ligands: MES ; X-RAY DIFFRACTION

e1m0nA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,2-Dialkylglycine decarboxylase ; ligands: HCP ; X-RAY DIFFRACTION 2.2Å

e1m0oA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,2-Dialkylglycine decarboxylase ; ligands: MPM ; X-RAY DIFFRACTION 2.4Å

e1m0pA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,2-Dialkylglycine Decarboxylase ; ligands: ELP ; X-RAY DIFFRACTION 2.6Å

e1m0qA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,2-Dialkylglycine Decarboxylase ; ligands: EPC ; X-RAY DIFFRACTION 2.0Å

e1z3zA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

dialkylglycine decarboxylase ; ligands: MES ; X-RAY DIFFRACTION 2.9Å

e1zc9A1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,2-DIALKYLGLYCINE DECARBOXYLASE ; X-RAY DIFFRACTION 2.0Å

e1zobA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH

2,2-DIALKYLGLYCINE DECARBOXYLASE ; ligands: MES ; X-RAY DIFFRACTION 2.75Å

e2dkbA1[A:326-433] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

2,2-DIALKYLGLYCINE DECARBOXYLASE (PYRUVATE) ; ligands: MES ; X-RAY DIFFRACTION

e3r4tA3[A:344-445] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate aminotransferase GabT ; ligands: CL ; X-RAY DIFFRACTION 2.500Å

e3oksA3[A:346-446] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate transaminase ; ligands: EDO,FMT ; X-RAY DIFFRACTION 1.800Å

e3oksB3[B:346-446] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate transaminase ; ligands: EDO,FMT ; X-RAY DIFFRACTION 1.800Å

e3oksD3[D:346-446] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate transaminase ; ligands: EDO,FMT ; X-RAY DIFFRACTION 1.800Å

e3oksC3[C:346-446] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate transaminase ; ligands: EDO ; X-RAY DIFFRACTION 1.800Å

e3q8nA3[A:347-448] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate transaminase ; X-RAY DIFFRACTION 2.050Å

e3q8nC3[C:347-449] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate transaminase ; X-RAY DIFFRACTION 2.050Å

e3q8nD3[D:347-449] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate transaminase ; X-RAY DIFFRACTION 2.050Å

e3q8nB3[B:347-448] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate transaminase ; X-RAY DIFFRACTION 2.050Å

e4ffcA3[A:342-446] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate aminotransferase (GabT) ; ligands: EDO ; X-RAY DIFFRACTION 1.800Å

e4ffcB3[B:342-446] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate aminotransferase (GabT) ; X-RAY DIFFRACTION 1.800Å

e4ffcC3[C:342-447] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate aminotransferase (GabT) ; ligands: EDO ; X-RAY DIFFRACTION 1.800Å

e4ffcD3[D:342-446] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate aminotransferase (GabT) ; X-RAY DIFFRACTION 1.800Å

e4atpA3[A:348-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atpC3[C:348-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atpI3[I:348-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atpH3[H:348-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atpG3[G:348-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atpD3[D:348-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atpB3[B:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atpE3[E:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atqE3[E:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atqJ3[J:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atpJ3[J:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atpL3[L:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e3nuiB1[B:343-455] Image Pymol Jmol Links: PDB, SCOP, CATH

Pyruvate transaminase ; X-RAY DIFFRACTION 2.0Å

e4atqI2[I:349-456] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atpF2[F:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atpK2[K:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.8Å

e4atqA2[A:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atqB2[B:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atqC2[C:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atqD2[D:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atqF2[F:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atqG2[G:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atqH2[H:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atqK2[K:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4atqL2[L:349-455] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE TRANSAMINASE ; X-RAY DIFFRACTION 2.75Å

e4grxB2[B:345-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Aminotransferase ; X-RAY DIFFRACTION 2.600Å

e4grxD2[D:345-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Aminotransferase ; X-RAY DIFFRACTION 2.600Å

e3n5mA2[A:339-449] Image Pymol Jmol Links: PDB, SCOP, CATH

Adenosylmethionine-8-amino-7-oxononanoate aminotransferase ; ligands: SO4 ; X-RAY DIFFRACTION 2.05Å

e3n5mC2[C:339-449] Image Pymol Jmol Links: PDB, SCOP, CATH

Adenosylmethionine-8-amino-7-oxononanoate aminotransferase ; X-RAY DIFFRACTION 2.05Å

e3nuiA1[A:345-454] Image Pymol Jmol Links: PDB, SCOP, CATH

Pyruvate transaminase ; X-RAY DIFFRACTION 2.0Å

e4grxA2[A:345-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Aminotransferase ; ligands: DAV ; X-RAY DIFFRACTION 2.600Å

e4grxC2[C:345-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Aminotransferase ; ligands: DAV ; X-RAY DIFFRACTION 2.600Å

e4e3qA2[A:345-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PYRUVATE TRANSAMINASE ; ligands: BEN ; X-RAY DIFFRACTION 1.9Å

e4e3qD3[D:345-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PYRUVATE TRANSAMINASE ; X-RAY DIFFRACTION 1.9Å

e4e3qB2[B:345-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PYRUVATE TRANSAMINASE ; X-RAY DIFFRACTION 1.9Å

e4e3qC1[C:345-452] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PYRUVATE TRANSAMINASE ; X-RAY DIFFRACTION 1.9Å

e4e3rA2[A:345-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pyruvate transaminase ; X-RAY DIFFRACTION 1.9Å

e4e3rB1[B:345-453] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pyruvate transaminase ; X-RAY DIFFRACTION 1.9Å

e4e3rC2[C:345-452] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pyruvate transaminase ; X-RAY DIFFRACTION 1.9Å

e4e3rD1[D:345-452] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Pyruvate transaminase ; X-RAY DIFFRACTION 1.9Å

e1sffA1[A:321-426] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-aminobutyrate aminotransferase ; ligands: SO4 ; X-RAY DIFFRACTION 1.9Å

e4uoxC2[C:353-458] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PUTRESCINE AMINOTRANSFERASE ; X-RAY DIFFRACTION 2.10Å

e2bylA1[A:346-439] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ORNITHINE AMINOTRANSFERASE ; X-RAY DIFFRACTION 2.15Å

e1ohwA1[A:376-471] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-AMINOBUTYRATE AMINOTRANSFERASE ; X-RAY DIFFRACTION 2.3Å

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.

X: ClpS-like

contains a HTH motif

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