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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: Flavodoxin-like
H: Succinyl-CoA synthetase domains
T: Succinyl-CoA synthetase domains
F: Ligase_CoA

PF00549 CL0506

Representatives:

e1oi7A2[A:122-288] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

SUCCINYL-COA SYNTHETASE ALPHA CHAIN ; X-RAY DIFFRACTION 1.23Å

e3dmyA3[A:330-497] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

Protein fdrA ; X-RAY DIFFRACTION 2.0Å

e3dmyB7[B:330-494] Image Pymol Jmol Links: PDB, SCOP, CATH

Protein fdrA ; X-RAY DIFFRACTION 2.0Å

e6g4qA1[A:171-345] Image Pymol Jmol Links: PDB, SCOP, CATH

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: EDO ; X-RAY DIFFRACTION 2.59Å

e6melA2[A:123-290] Image Pymol Jmol Links: PDB, SCOP, CATH

Succinate--CoA ligase subunit alpha ; ligands: CIT,CL ; X-RAY DIFFRACTION 2.060Å

e6mggC1[C:123-296] Image Pymol Jmol Links: PDB, SCOP, CATH

Succinate--CoA ligase [ADP-forming] subunit alpha ; ligands: COA,MG ; X-RAY DIFFRACTION 1.780Å

e6mggA1[A:123-294] Image Pymol Jmol Links: PDB, SCOP, CATH

Succinate--CoA ligase [ADP-forming] subunit alpha ; ligands: COA,MG ; X-RAY DIFFRACTION 1.780Å

e6hxqA1[A:132-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citryl-CoA synthetase small subunit ; ligands: COA,PGE ; X-RAY DIFFRACTION 2.91Å

e6pfnA1[A:123-296] Image Pymol Jmol Links: PDB, SCOP, CATH

Succinate--CoA ligase [ADP-forming] subunit alpha ; ligands: COA ; X-RAY DIFFRACTION 1.760Å

e6pfnC1[C:123-294] Image Pymol Jmol Links: PDB, SCOP, CATH

Succinate--CoA ligase [ADP-forming] subunit alpha ; ligands: COA ; X-RAY DIFFRACTION 1.760Å

e6hxhA2[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase,Human ATP citrate lyase ; ligands: COA,FLC,PO4 ; X-RAY DIFFRACTION 3.30Å

e6hxhB2[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase,Human ATP citrate lyase ; ligands: COA,FLC,PO4 ; X-RAY DIFFRACTION 3.30Å

e6hxhC2[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase,Human ATP citrate lyase ; ligands: COA,FLC,PO4 ; X-RAY DIFFRACTION 3.30Å

e6hxhD2[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase,Human ATP citrate lyase ; ligands: COA,FLC,PO4 ; X-RAY DIFFRACTION 3.30Å

e6hxhE2[E:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase,Human ATP citrate lyase ; ligands: COA,FLC,PO4 ; X-RAY DIFFRACTION 3.30Å

e6hxhF2[F:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase,Human ATP citrate lyase ; ligands: COA,FLC,PO4 ; X-RAY DIFFRACTION 3.30Å

e6hxhG2[G:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase,Human ATP citrate lyase ; ligands: COA,FLC,PO4 ; X-RAY DIFFRACTION 3.30Å

e6hxhH2[H:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase,Human ATP citrate lyase ; ligands: COA,FLC,PO4 ; X-RAY DIFFRACTION 3.30Å

e6qfbA2[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: 2HP ; X-RAY DIFFRACTION 3.25Å

e6qfbB2[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: 2HP,COA,FLC ; X-RAY DIFFRACTION 3.25Å

e6qfbC2[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; X-RAY DIFFRACTION 3.25Å

e6qfbD2[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: 2HP ; X-RAY DIFFRACTION 3.25Å

e6hxqC2[C:132-345] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Citryl-CoA synthetase small subunit ; ligands: COA,PGE ; X-RAY DIFFRACTION 2.91Å

e6hxiD2[D:139-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Succinyl-CoA ligase (ADP-forming) subunit alpha ; ligands: COA,FLC ; X-RAY DIFFRACTION 2.10Å

e6hxjD2[D:137-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate lyase alpha-subunit ; ligands: FLC,PGE,TRS ; X-RAY DIFFRACTION 2.58Å

e6hxjF2[F:137-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate lyase alpha-subunit ; ligands: FLC ; X-RAY DIFFRACTION 2.58Å

e6hxjH2[H:137-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate lyase alpha-subunit ; ligands: FLC ; X-RAY DIFFRACTION 2.58Å

e6poeA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6poeB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6poeC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: COA ; ELECTRON MICROSCOPY

e6poeD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: COA ; ELECTRON MICROSCOPY

e6pofA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6pofB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6pofC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6pofD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6ui9A3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ACLY ; ligands: ACO ; ELECTRON MICROSCOPY

e6ui9B3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ACLY ; ligands: ACO ; ELECTRON MICROSCOPY

e6ui9C3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ACLY ; ligands: ACO ; ELECTRON MICROSCOPY

e6ui9D3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ACLY ; ligands: ACO ; ELECTRON MICROSCOPY

e6uiaC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: COA ; ELECTRON MICROSCOPY

e6uiaD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6uiaA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6uiaB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: COA ; ELECTRON MICROSCOPY

e6uuwA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: QHD ; ELECTRON MICROSCOPY

e6uuwB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: QHD ; ELECTRON MICROSCOPY

e6uuwC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: QHD ; ELECTRON MICROSCOPY

e6uuwD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: QHD ; ELECTRON MICROSCOPY

e6uuzA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: COA ; ELECTRON MICROSCOPY

e6uuzB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: COA ; ELECTRON MICROSCOPY

e6uuzC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: COA ; ELECTRON MICROSCOPY

e6uuzD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: COA ; ELECTRON MICROSCOPY

e6uv5A3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP citrate lyase ; ligands: ACO,OAA ; ELECTRON MICROSCOPY

e6uv5B3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP citrate lyase ; ligands: ACO,OAA ; ELECTRON MICROSCOPY

e6uv5C3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP citrate lyase ; ligands: ACO ; ELECTRON MICROSCOPY

e6uv5D3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP citrate lyase ; ligands: ACO,OAA ; ELECTRON MICROSCOPY

e6o0hA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6o0hB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6o0hC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6o0hD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e6wcvA1[A:131-307] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: TUY ; X-RAY DIFFRACTION 1.520Å

e6xruA1[A:131-310] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinyl-CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: DCA,EDO,GOL,PO4,SIN ; X-RAY DIFFRACTION 1.40Å

e7llaA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: ACO,OAA ; ELECTRON MICROSCOPY

e7lj9D3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: ACO ; ELECTRON MICROSCOPY

e7jfpA2[A:131-306] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: GDP,GOL,MG ; X-RAY DIFFRACTION 2.55Å

e7jj0A2[A:131-306] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: GCP ; X-RAY DIFFRACTION 2.25Å

e7jj0C1[C:131-306] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; X-RAY DIFFRACTION 2.25Å

e7jkrA2[A:131-306] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: GNP,GOL ; X-RAY DIFFRACTION 2.64Å

e7jmkA1[A:131-306] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: GDP ; X-RAY DIFFRACTION 2.50Å

e7jmkC1[C:131-306] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; X-RAY DIFFRACTION 2.50Å

e7llaB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: ACO,OAA ; ELECTRON MICROSCOPY

e7llaC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: ACO,OAA ; ELECTRON MICROSCOPY

e7llaD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: ACO,OAA ; ELECTRON MICROSCOPY

e7liwB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: COA,Y2A ; ELECTRON MICROSCOPY

e6znwB2[B:139-336] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Methanosaeta concilii ACLY-B ; ligands: FLC,PO4 ; X-RAY DIFFRACTION 2.12Å

e7msrA1[A:131-308] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: DCA,EDO,GOL,ZNS ; X-RAY DIFFRACTION 1.580Å

e7mssA1[A:131-308] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: COA,GOL,PO4,SIN ; X-RAY DIFFRACTION 1.750Å

e7mstA1[A:131-309] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial ; ligands: COA,EDO,GOL ; X-RAY DIFFRACTION 1.610Å

e8g1eA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e8g1eB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e8g1eC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e8g1eD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e8g1fA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e8g1fB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e8g1fC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e8g1fD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e8g5cA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e8g5dD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e7rigA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e7rigB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e7rigC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e7rigD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e7rkzA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: Q5B ; ELECTRON MICROSCOPY

e7rkzB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: Q5B ; ELECTRON MICROSCOPY

e7rkzC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e7rkzD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: Q5B ; ELECTRON MICROSCOPY

e7rmpA3[A:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e7rmpB3[B:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e7rmpC3[C:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ELECTRON MICROSCOPY

e7rmpD3[D:624-821] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP-citrate synthase ; ligands: PO4,Q5B ; ELECTRON MICROSCOPY

e1eucB2[B:246-393] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

SUCCINYL-COA SYNTHETASE, BETA CHAIN ; ligands: PO4,ZN ; X-RAY DIFFRACTION 2.1Å

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