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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: Bacillus chorismate mutase-like
H: DAK1/DegV C-terminal domain
T: DAK1/DegV C-terminal domain
F: DegV

PF02645 CL0245

Representatives:

e1mgpA3[A:182-309] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HYPOTHETICAL PROTEIN TM841 ; ligands: PLM ; X-RAY DIFFRACTION 2.0Å

e1pzxA3[A:157-287] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

Hypothetical protein APC36103 ; ligands: PLM ; X-RAY DIFFRACTION 2.0Å

e3eglA2[A:134-263] Image Pymol Jmol Links: PDB, SCOP, CATH

DEGV FAMILY PROTEIN ; ligands: PLM ; X-RAY DIFFRACTION 2.41Å

e3eglB2[B:134-264] Image Pymol Jmol Links: PDB, SCOP, CATH

DEGV FAMILY PROTEIN ; ligands: PLM ; X-RAY DIFFRACTION 2.41Å

e3eglC2[C:134-264] Image Pymol Jmol Links: PDB, SCOP, CATH

DEGV FAMILY PROTEIN ; ligands: FMT,PLM ; X-RAY DIFFRACTION 2.41Å

e3fdjA2[A:150-275] Image Pymol Jmol Links: PDB, SCOP, CATH

DegV family protein ; ligands: ACY,EDO,NA,P6G,PG4 ; X-RAY DIFFRACTION 1.800Å

e3jr7A1[A:174-298] Image Pymol Jmol Links: PDB, SCOP, CATH

UNCHARACTERIZED EGV FAMILY PROTEIN COG1307 ; ligands: NA,PG6 ; X-RAY DIFFRACTION 2.0Å

e3jr7B2[B:174-298] Image Pymol Jmol Links: PDB, SCOP, CATH

UNCHARACTERIZED EGV FAMILY PROTEIN COG1307 ; ligands: PG6 ; X-RAY DIFFRACTION 2.0Å

e3lupA1[A:155-282] Image Pymol Jmol Links: PDB, SCOP, CATH

DegV family protein ; ligands: ELA ; X-RAY DIFFRACTION 2.65Å

e3nyiA2[A:159-293] Image Pymol Jmol Links: PDB, SCOP, CATH

fat acid-binding protein ; ligands: STE ; X-RAY DIFFRACTION 1.90Å

e3nyiB1[B:159-293] Image Pymol Jmol Links: PDB, SCOP, CATH

fat acid-binding protein ; ligands: STE ; X-RAY DIFFRACTION 1.90Å

e3pl5A2[A:159-286] Image Pymol Jmol Links: PDB, SCOP, CATH

PUTATIVE UNCHARACTERIZED PROTEIN ; ligands: PLM ; X-RAY DIFFRACTION 2.04Å

e1pzxB1[B:157-287] Image Pymol Jmol Links: PDB, SCOP, CATH

Hypothetical protein APC36103 ; ligands: PLM ; X-RAY DIFFRACTION 2.0Å

e4x9xA2[A:153-279] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

DegV domain-containing protein MW1315 ; ligands: EDO,OLA ; X-RAY DIFFRACTION 1.2Å

e7sclA2[A:156-288] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty Acid Kinase B1 ; ligands: PLM ; X-RAY DIFFRACTION 1.60Å

e7sclB2[B:156-288] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty Acid Kinase B1 ; ligands: PLM ; X-RAY DIFFRACTION 1.60Å

e7sg3A2[A:156-288] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty Acid Kinase B1 ; ligands: PLM ; X-RAY DIFFRACTION 2.35Å

e7sg3B2[B:156-288] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty Acid Kinase B1 ; ligands: PLM ; X-RAY DIFFRACTION 2.35Å

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