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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: Isocitrate/Isopropylmalate dehydrogenase-like
H: Isocitrate/Isopropylmalate dehydrogenase-like
T: Isocitrate/Isopropylmalate dehydrogenase-like
F: Iso_dh

PF00180 CL0270

Representatives:

e1hqsA1[A:1-116,A:289-329] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ISOCITRATE DEHYDROGENASE ; ligands: CIT,PGO ; X-RAY DIFFRACTION 1.55Å

e1hqsA2[A:117-322] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ISOCITRATE DEHYDROGENASE ; ligands: CIT,PGO,PGR ; X-RAY DIFFRACTION 1.55Å

e1w0dA1[A:1-91,A:246-336] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-ISOPROPYLMALATE DEHYDROGENASE ; X-RAY DIFFRACTION 1.650Å

e3flkA1[A:5-102,A:261-364] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Tartrate dehydrogenase/decarboxylase ; ligands: NAI,NH4,OXL,SO4 ; X-RAY DIFFRACTION 2.0Å

e3flkB2[B:5-102,B:261-364] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Tartrate dehydrogenase/decarboxylase ; ligands: NAI,NH4,OXL,SO4 ; X-RAY DIFFRACTION 2.0Å

e3flkC1[C:5-102,C:261-364] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Tartrate dehydrogenase/decarboxylase ; ligands: NAI,NH4,OXL,SO4 ; X-RAY DIFFRACTION 2.0Å

e3flkD2[D:5-102,D:261-364] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Tartrate dehydrogenase/decarboxylase ; ligands: DTT,NAI,NH4,OXL,SO4 ; X-RAY DIFFRACTION 2.0Å

e2g4oA1[A:1-91,A:246-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-isopropylmalate dehydrogenase ; ligands: CL,SO4 ; X-RAY DIFFRACTION 2.0Å

e2g4oB1[B:1-91,B:246-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-isopropylmalate dehydrogenase ; X-RAY DIFFRACTION 2.0Å

e2g4oC2[C:1-91,C:246-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-isopropylmalate dehydrogenase ; X-RAY DIFFRACTION 2.0Å

e2g4oD2[D:1-91,D:246-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-isopropylmalate dehydrogenase ; X-RAY DIFFRACTION 2.0Å

e1w0dB1[B:1-91,B:246-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-ISOPROPYLMALATE DEHYDROGENASE ; X-RAY DIFFRACTION 1.650Å

e1w0dC2[C:1-91,C:246-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-ISOPROPYLMALATE DEHYDROGENASE ; X-RAY DIFFRACTION 1.650Å

e1w0dD1[D:1-91,D:246-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-ISOPROPYLMALATE DEHYDROGENASE ; ligands: SO4 ; X-RAY DIFFRACTION 1.650Å

e1w0dA2[A:92-245] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-ISOPROPYLMALATE DEHYDROGENASE ; X-RAY DIFFRACTION 1.650Å

e1cnzA1[A:1-104,A:262-363] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (3-ISOPROPYLMALATE DEHYDROGENASE) ; ligands: SO4 ; X-RAY DIFFRACTION 1.76Å

e1cnzA2[A:105-261] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (3-ISOPROPYLMALATE DEHYDROGENASE) ; ligands: MN,SO4 ; X-RAY DIFFRACTION 1.76Å

e1lwdA1[A:1-106,A:287-413] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Isocitrate Dehydrogenase ; ligands: ICT ; X-RAY DIFFRACTION 1.800Å

e1lwdA2[A:107-286] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Isocitrate Dehydrogenase ; ligands: ICT,MN ; X-RAY DIFFRACTION 1.800Å

e1wpwA1[A:1-91,A:236-336] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

3-ISOPROPYLMALATE DEHYDROGENASE ; ligands: MG ; X-RAY DIFFRACTION 2.8Å

e1wpwA2[A:92-235] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

3-ISOPROPYLMALATE DEHYDROGENASE ; ligands: MG ; X-RAY DIFFRACTION 2.8Å

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