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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

X: TIM beta/alpha-barrel
H: TIM barrels
T: TIM barrels
F: ThiG

PF05690 CL0036

Representatives:

e1xm3A1[A:2-252] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

THIAZOLE BIOSYNTHESIS PROTEIN THIG ; X-RAY DIFFRACTION 1.8Å

e1xm3C1[C:2-250] Image Pymol Jmol Links: PDB, SCOP, CATH

THIAZOLE BIOSYNTHESIS PROTEIN THIG ; X-RAY DIFFRACTION 1.8Å

e1wv2B1[B:2009-2251] Image Pymol Jmol Links: PDB, SCOP, CATH

Thiazole biosynthesis protein thiG ; X-RAY DIFFRACTION 2.9Å

e1tygA1[A:103-344] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiazole biosynthesis protein thiG ; ligands: PO4 ; X-RAY DIFFRACTION 3.15Å

e1xm3D1[D:2-250] Image Pymol Jmol Links: PDB, SCOP, CATH

THIAZOLE BIOSYNTHESIS PROTEIN THIG ; X-RAY DIFFRACTION 1.8Å

e1xm3B1[B:2-252] Image Pymol Jmol Links: PDB, SCOP, CATH

THIAZOLE BIOSYNTHESIS PROTEIN THIG ; X-RAY DIFFRACTION 1.8Å

e1tygC1[C:103-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiazole biosynthesis protein thiG ; ligands: PO4 ; X-RAY DIFFRACTION 3.15Å

e1wv2A1[A:1009-1251] Image Pymol Jmol Links: PDB, SCOP, CATH

Thiazole biosynthesis protein thiG ; X-RAY DIFFRACTION 2.9Å

e2htmA1[A:1-241] Image Pymol Jmol Links: PDB, SCOP, CATH

THIAZOLE BIOSYNTHESIS PROTEIN THIG ; X-RAY DIFFRACTION 2.3Å

e2htmB1[B:1-241] Image Pymol Jmol Links: PDB, SCOP, CATH

THIAZOLE BIOSYNTHESIS PROTEIN THIG ; X-RAY DIFFRACTION 2.3Å

e2htmC1[C:1-241] Image Pymol Jmol Links: PDB, SCOP, CATH

THIAZOLE BIOSYNTHESIS PROTEIN THIG ; X-RAY DIFFRACTION 2.3Å

e2htmD1[D:1-241] Image Pymol Jmol Links: PDB, SCOP, CATH

THIAZOLE BIOSYNTHESIS PROTEIN THIG ; X-RAY DIFFRACTION 2.3Å

e4n6fA1[A:11-252] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative thiosugar synthase ; ligands: CA,F6R ; X-RAY DIFFRACTION 2.250Å

e4n6eA1[A:11-254] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative thiosugar synthase ; ligands: SO4 ; X-RAY DIFFRACTION 2.600Å

e4n6fB1[B:12-253] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative thiosugar synthase ; ligands: CA,F6R ; X-RAY DIFFRACTION 2.250Å

e5z9yA1[A:5-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiazole synthase ; ligands: DXP ; X-RAY DIFFRACTION 1.480Å

e5z9yB1[B:5-247] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Thiazole synthase ; ligands: DXP ; X-RAY DIFFRACTION 1.480Å

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.

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