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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

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

X: Flavodoxin-like
H: Class I glutamine amidotransferase-like
T: ATC-like
F: Amdase

PF17645 CL0399

Representatives:

e3eisD2[D:4-116] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

ARYLMALONATE DECARBOXYLASE ; ligands: GOL ; X-RAY DIFFRACTION 2.1Å

e4ix1A2[A:7-127] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; ligands: PO4 ; X-RAY DIFFRACTION 2.8Å

e4ix1B2[B:7-127] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e4ix1C1[C:7-128] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e4ix1D1[D:7-128] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; ligands: PO4 ; X-RAY DIFFRACTION 2.8Å

e4ix1E2[E:8-127] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; ligands: PO4 ; X-RAY DIFFRACTION 2.8Å

e4ix1G1[G:7-128] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e4ix1H2[H:8-127] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; ligands: PO4 ; X-RAY DIFFRACTION 2.8Å

e4ix1F1[F:8-128] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e4ix1B3[B:118-163,B:183-259] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e2xecA3[A:123-248] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PUTATIVE MALEATE ISOMERASE ; ligands: CA,TRS ; X-RAY DIFFRACTION 2.2Å

e4ix1H7[H:118-163,H:183-259] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e4ix1D7[D:119-162,D:183-259] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e4ix1G7[G:119-162,G:183-259] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e4ix1E5[E:118-163,E:183-259] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e4ix1C7[C:119-162,C:183-259] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e2vlbB4[B:115-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: BME ; X-RAY DIFFRACTION 1.92Å

e4ix1A3[A:118-163,A:183-259] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e3dtvA4[A:115-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e3eisA4[A:115-240] Image Pymol Jmol Links: PDB, SCOP, CATH

ARYLMALONATE DECARBOXYLASE ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.1Å

e3dtvC4[C:115-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e3eisC4[C:114-240] Image Pymol Jmol Links: PDB, SCOP, CATH

ARYLMALONATE DECARBOXYLASE ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e3ixmA4[A:114-239] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Arylmalonate decarboxylase ; ligands: SO4 ; X-RAY DIFFRACTION 1.9Å

e2vlbD4[D:115-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: BME,EDO,PO4 ; X-RAY DIFFRACTION 1.92Å

e3eisB4[B:114-238] Image Pymol Jmol Links: PDB, SCOP, CATH

ARYLMALONATE DECARBOXYLASE ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.1Å

e2vlbA4[A:115-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: BME ; X-RAY DIFFRACTION 1.92Å

e3dtvB4[B:114-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e3dtvD4[D:114-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e3eisD4[D:114-240] Image Pymol Jmol Links: PDB, SCOP, CATH

ARYLMALONATE DECARBOXYLASE ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e2dgdC3[C:98-223] Image Pymol Jmol Links: PDB, SCOP, CATH

223AA LONG HYPOTHETICAL ARYLMALONATE DECARBOXYLASE ; X-RAY DIFFRACTION 2.9Å

e2vlbC4[C:115-241] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: BME,PO4 ; X-RAY DIFFRACTION 1.92Å

e2dgdD4[D:106-223] Image Pymol Jmol Links: PDB, SCOP, CATH

223AA LONG HYPOTHETICAL ARYLMALONATE DECARBOXYLASE ; X-RAY DIFFRACTION 2.9Å

e2dgdB4[B:106-223] Image Pymol Jmol Links: PDB, SCOP, CATH

223AA LONG HYPOTHETICAL ARYLMALONATE DECARBOXYLASE ; X-RAY DIFFRACTION 2.9Å

e2dgdA4[A:106-223] Image Pymol Jmol Links: PDB, SCOP, CATH

223AA LONG HYPOTHETICAL ARYLMALONATE DECARBOXYLASE ; X-RAY DIFFRACTION 2.9Å

e2xedA4[A:116-248] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PUTATIVE MALEATE ISOMERASE ; ligands: SIN ; X-RAY DIFFRACTION 1.95Å

e4fq5B5[B:120-254] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Maleate cis-trans isomerase ; ligands: MAE ; X-RAY DIFFRACTION 2.100Å

e4fq5A2[A:130-252] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Maleate cis-trans isomerase ; ligands: MAE ; X-RAY DIFFRACTION 2.100Å

e2xecB1[B:116-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PUTATIVE MALEATE ISOMERASE ; ligands: CA ; X-RAY DIFFRACTION 2.2Å

e3ip8A1[A:114-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Arylmalonate decarboxylase ; ligands: B85 ; X-RAY DIFFRACTION 1.498Å

e2xecC2[C:123-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PUTATIVE MALEATE ISOMERASE ; ligands: CA ; X-RAY DIFFRACTION 2.2Å

e4ix1F2[F:119-162,F:183-259] Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN ; X-RAY DIFFRACTION 2.8Å

e3dg9A1[A:114-238] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Arylmalonate decarboxylase ; ligands: PO4 ; X-RAY DIFFRACTION 1.5Å

e3ixlA1[A:114-240] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Arylmalonate decarboxylase ; ligands: GOL,PAC ; X-RAY DIFFRACTION 1.45Å

e2xedB1[B:116-246] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PUTATIVE MALEATE ISOMERASE ; ligands: SIN ; X-RAY DIFFRACTION 1.95Å

e2xedC1[C:116-246] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PUTATIVE MALEATE ISOMERASE ; ligands: SIN ; X-RAY DIFFRACTION 1.95Å

e2xedD1[D:116-246] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PUTATIVE MALEATE ISOMERASE ; ligands: SIN ; X-RAY DIFFRACTION 1.95Å

e4fq7A2[A:120-252] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Maleate cis-trans isomerase ; X-RAY DIFFRACTION 2.950Å

e4fq7B2[B:120-252] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Maleate cis-trans isomerase ; X-RAY DIFFRACTION 2.950Å

e2xecD2[D:116-246] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PUTATIVE MALEATE ISOMERASE ; ligands: CA,TRS ; X-RAY DIFFRACTION 2.2Å

e2vlbC2[C:6-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: EDO,PO4 ; X-RAY DIFFRACTION 1.92Å

e3dtvA2[A:7-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.1Å

e3dtvB2[B:5-115] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: BME,GOL,SO4 ; X-RAY DIFFRACTION 2.1Å

e3dtvC2[C:7-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.1Å

e3dtvD2[D:5-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: GOL ; X-RAY DIFFRACTION 2.1Å

e3eisA2[A:7-116] Image Pymol Jmol Links: PDB, SCOP, CATH

ARYLMALONATE DECARBOXYLASE ; ligands: GOL ; X-RAY DIFFRACTION 2.1Å

e3eisB2[B:5-115] Image Pymol Jmol Links: PDB, SCOP, CATH

ARYLMALONATE DECARBOXYLASE ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e3eisC2[C:5-115] Image Pymol Jmol Links: PDB, SCOP, CATH

ARYLMALONATE DECARBOXYLASE ; ligands: SO4 ; X-RAY DIFFRACTION 2.1Å

e3ip8A2[A:7-115] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Arylmalonate decarboxylase ; ligands: B85 ; X-RAY DIFFRACTION 1.498Å

e3ixmA2[A:7-115] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Arylmalonate decarboxylase ; ligands: SO4 ; X-RAY DIFFRACTION 1.9Å

e2vlbA2[A:6-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: BME,PO4 ; X-RAY DIFFRACTION 1.92Å

e2vlbB2[B:6-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: BME,EDO,PO4 ; X-RAY DIFFRACTION 1.92Å

e2vlbD2[D:6-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ARYLMALONATE DECARBOXYLASE ; ligands: EDO,PO4 ; X-RAY DIFFRACTION 1.92Å

e3dg9A2[A:7-116] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Arylmalonate decarboxylase ; ligands: PO4 ; X-RAY DIFFRACTION 1.5Å

e3ixlA2[A:6-115] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Arylmalonate decarboxylase ; ligands: PAC,SO4 ; X-RAY DIFFRACTION 1.45Å

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.

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