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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: Rossmann-like domain in Acetyl-CoA synthetase-like proteins
H: Rossmann-like domain in Acetyl-CoA synthetase-like proteins
T: Rossmann-like domain in Acetyl-CoA synthetase-like proteins
F: AMP-binding

PF00501 CL0378

Representatives:

e5oe3A1[A:2-150] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Anthranilate--CoA ligase ; ligands: EDO,PEG ; X-RAY DIFFRACTION 1.430Å

e5oe3A2[A:151-321] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Anthranilate--CoA ligase ; ligands: 3UK,EDO,PEG ; X-RAY DIFFRACTION 1.430Å

e1pg4A4[A:250-436] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

acetyl-CoA synthetase ; ligands: COA,EDO,PRX ; X-RAY DIFFRACTION 1.75Å

e1amuA3[A:17-175] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GRAMICIDIN SYNTHETASE 1 ; X-RAY DIFFRACTION 1.9Å

e1amuA4[A:176-347] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GRAMICIDIN SYNTHETASE 1 ; ligands: AMP,MG,PHE ; X-RAY DIFFRACTION 1.9Å

e1lciA3[A:4-182] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LUCIFERASE ; X-RAY DIFFRACTION 2.0Å

e1lciA4[A:183-355] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LUCIFERASE ; X-RAY DIFFRACTION 2.0Å

e3cw9A3[A:1-146] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-CHLOROBENZOYL COA LIGASE ; ligands: 01A,EDO ; X-RAY DIFFRACTION 2.0Å

e3cw9A4[A:147-323] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

4-CHLOROBENZOYL COA LIGASE ; ligands: 01A,AMP,MG,NO3 ; X-RAY DIFFRACTION 2.0Å

e1mdbA3[A:1-176] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,3-dihydroxybenzoate-AMP ligase ; ligands: SO4 ; X-RAY DIFFRACTION 2.15Å

e1mdbA4[A:177-352] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

2,3-dihydroxybenzoate-AMP ligase ; ligands: AMP,DBH ; X-RAY DIFFRACTION 2.15Å

e4isbA1[A:10-165] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Long chain fatty acid CoA ligase FadD10 ; X-RAY DIFFRACTION 2.200Å

e4isbA2[A:166-340] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Long chain fatty acid CoA ligase FadD10 ; ligands: SO4 ; X-RAY DIFFRACTION 2.200Å

e4oxiA1[A:15-188] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Enterobactin synthetase component F-related protein ; X-RAY DIFFRACTION 2.26Å

e4oxiA2[A:190-368] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Enterobactin synthetase component F-related protein ; ligands: GAP ; X-RAY DIFFRACTION 2.26Å

e1v25A3[A:8-170] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LONG-CHAIN-FATTY-ACID-COA SYNTHETASE ; X-RAY DIFFRACTION 2.3Å

e1v25A4[A:171-356] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LONG-CHAIN-FATTY-ACID-COA SYNTHETASE ; ligands: ANP,MG ; X-RAY DIFFRACTION 2.3Å

e5ey9B1[B:3-173] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Long-chain-fatty-acid--AMP ligase FadD32 ; X-RAY DIFFRACTION 2.50Å

e5ey9B2[B:174-389] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Long-chain-fatty-acid--AMP ligase FadD32 ; ligands: 5SV,GOL ; X-RAY DIFFRACTION 2.50Å

e5u2aA1[A:10-191] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

AMP-dependent synthetase and ligase ; ligands: CL ; X-RAY DIFFRACTION 2.500Å

e5u2aA2[A:192-367] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

AMP-dependent synthetase and ligase ; ligands: CL ; X-RAY DIFFRACTION 2.500Å

e1ultA3[A:171-356] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LONG CHAIN FATTY ACID-COA LIGASE ; X-RAY DIFFRACTION 2.55Å

e1ultA4[A:8-170] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LONG CHAIN FATTY ACID-COA LIGASE ; X-RAY DIFFRACTION 2.55Å

e6eqoA3[A:427-613] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Acetyl-coenzyme A synthetase ; ligands: ACP ; X-RAY DIFFRACTION 2.700Å

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