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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

X: Profilin-like
H: sensor domains
T: sensor domains
F: dCache_1

PF02743 CL0165

Representatives:

e4jgoB1[B:0-245] * nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SPORULATION KINASE D ; ligands: GOL,PYR ; X-RAY DIFFRACTION 2.28Å

e4jgoA2[A:39-244] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SPORULATION KINASE D ; ligands: GOL,PYR ; X-RAY DIFFRACTION 2.28Å

e4jgpA2[A:39-244] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SPORULATION KINASE D ; ligands: PYR ; X-RAY DIFFRACTION 2.03Å

e4jgpB2[B:40-245] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SPORULATION KINASE D ; ligands: PYR ; X-RAY DIFFRACTION 2.03Å

e4jgrB2[B:38-243] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SPORULATION KINASE D ; ligands: ACY,GOL ; X-RAY DIFFRACTION 2.4Å

e4jgqA2[A:40-242] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SPORULATION KINASE D ; ligands: ACY ; X-RAY DIFFRACTION 2.63Å

e4jgrA2[A:41-243] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SPORULATION KINASE D ; ligands: ACY,GOL ; X-RAY DIFFRACTION 2.4Å

e4jgqB2[B:41-242] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SPORULATION KINASE D ; ligands: ACY ; X-RAY DIFFRACTION 2.63Å

e5t65A1[A:30-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Methyl-accepting chemotaxis protein PctA ; ligands: ILE ; X-RAY DIFFRACTION 2.20Å

e5t65B1[B:35-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Methyl-accepting chemotaxis protein PctA ; ligands: ILE ; X-RAY DIFFRACTION 2.20Å

e5ltxA1[A:30-183] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Chemotaxis protein ; ligands: ACT,FMT,GOL,MET ; X-RAY DIFFRACTION 2.020Å

e5t7mA2[A:30-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Chemotaxis protein ; ligands: ACT,TRP ; X-RAY DIFFRACTION 2.25Å

e5ltvA2[A:40-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Chemotactic transducer PctC ; ligands: ABU,GOL,SO4 ; X-RAY DIFFRACTION 2.310Å

e5ltvB1[B:44-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Chemotactic transducer PctC ; ligands: ABU,ACT,SO4 ; X-RAY DIFFRACTION 2.310Å

e5ltvC1[C:41-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Chemotactic transducer PctC ; ligands: ABU,ACT,GOL,SO4 ; X-RAY DIFFRACTION 2.310Å

e5ltvD2[D:41-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Chemotactic transducer PctC ; ligands: ABU,SO4 ; X-RAY DIFFRACTION 2.310Å

e5ltvE1[E:41-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Chemotactic transducer PctC ; ligands: ABU,SO4 ; X-RAY DIFFRACTION 2.310Å

e5ltvF2[F:41-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Chemotactic transducer PctC ; ligands: ABU,ACT,GOL,SO4 ; X-RAY DIFFRACTION 2.310Å

e5ltvG2[G:42-186] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Chemotactic transducer PctC ; ligands: SO4 ; X-RAY DIFFRACTION 2.310Å

e5ltxB1[B:37-183] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Chemotaxis protein ; ligands: FMT,GOL,MET ; X-RAY DIFFRACTION 2.020Å

e5t7mB1[B:36-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Chemotaxis protein ; ligands: TRP ; X-RAY DIFFRACTION 2.25Å

e6mniA2[A:29-200] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Methyl-accepting chemotaxis protein ; ligands: GOL,PRO ; X-RAY DIFFRACTION 1.6960Å

e6mniB1[B:35-200] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Methyl-accepting chemotaxis protein ; ligands: CL,PRO ; X-RAY DIFFRACTION 1.6960Å

e6py3B2[B:31-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative methyl-accepting chemotaxis protein ; ligands: ILE ; X-RAY DIFFRACTION 1.900Å

e6py3A1[A:34-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative methyl-accepting chemotaxis protein ; ligands: ILE ; X-RAY DIFFRACTION 1.900Å

e6py4A2[A:35-183] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Putative methyl-accepting chemotaxis protein ; ligands: LEU ; X-RAY DIFFRACTION 2.000Å

e7k5nA1[A:44-206] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Sensor domain-containing diguanylate cyclase ; ligands: GOL,PRO ; X-RAY DIFFRACTION 1.80Å

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 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