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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: Thiolase-like
H: Thiolase-like
T: Thiolase-like
F: Ketoacyl-synt_C

PF02801 CL0046

Representatives:

e1ox0A2[A:252-409] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Beta ketoacyl-acyl carrier protein synthase ; ligands: MG ; X-RAY DIFFRACTION 1.3Å

e2vbaA2[A:254-404] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-OXOACYL-[ACYL-CARRIER-PROTEIN] SYNTHASE 1 ; ligands: P4T ; X-RAY DIFFRACTION 1.36Å

e1tqyB2[B:210-403] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Actinorhodin polyketide putative beta-ketoacyl synthase 2 ; X-RAY DIFFRACTION 2.00Å

e4kc5A2[A:3315-3496] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

RhiE protein ; X-RAY DIFFRACTION 2.14Å

e2pffA2[A:1399-1744] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FATTY ACID SYNTHASE SUBUNIT ALPHA ; X-RAY DIFFRACTION 4.0Å

e3hmjA5[A:1399-1745] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FATTY ACID SYNTHASE SUBUNIT ALPHA ; ligands: CER ; X-RAY DIFFRACTION 4.0Å

e3zenD13[D:2834-3089] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4b3yB13[B:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4b3yC13[C:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjgC13[C:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3zenE13[E:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e3zenF13[F:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjdA13[A:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjdB13[B:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjdC13[C:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjeD13[D:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjeE13[E:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjeF13[F:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjfE13[E:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjfF13[F:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjgA13[A:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4bjgB13[B:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH Obsolete PDB

e4v8lD2[D:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8lE2[E:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8lF2[F:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8lA2[A:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8lB2[B:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8lC2[C:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8vA2[A:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8vB2[B:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8vC2[C:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8vD2[D:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8vE2[E:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8vF2[F:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8wD2[D:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8wE2[E:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8wF2[F:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8wA2[A:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8wB2[B:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e4v8wC2[C:2834-3089] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TYPE-I FATTY ACID SYNTHASE ; ELECTRON MICROSCOPY

e6gjcA9[A:2840-3061] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase ; ELECTRON MICROSCOPY

e6gjcB1[B:2840-3061] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase ; ELECTRON MICROSCOPY

e6gjcC9[C:2840-3061] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase ; ELECTRON MICROSCOPY

e6gjcD10[D:2840-3061] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase ; ELECTRON MICROSCOPY

e6gjcE2[E:2840-3061] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase ; ELECTRON MICROSCOPY

e6gjcF2[F:2840-3061] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase ; ELECTRON MICROSCOPY

e6u5tA4[A:1399-1747] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6u5uA1[A:1399-1747] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ta1A5[A:1399-1745] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ta1B3[B:1399-1745] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ta1D7[D:1399-1745] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ta1K5[K:1399-1745] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ta1F1[F:1399-1745] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ta1I1[I:1399-1745] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ql5A1[A:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ql5B4[B:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ql5C3[C:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ql5D5[D:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ql5E7[E:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ql5F5[F:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ELECTRON MICROSCOPY

e6ql6A5[A:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: J8T ; ELECTRON MICROSCOPY

e6ql6B5[B:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: J8T ; ELECTRON MICROSCOPY

e6ql6C4[C:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: J8T ; ELECTRON MICROSCOPY

e6ql6D5[D:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: J8T ; ELECTRON MICROSCOPY

e6ql6E2[E:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: J8T ; ELECTRON MICROSCOPY

e6ql6F1[F:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: J8T ; ELECTRON MICROSCOPY

e6ql9D2[D:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: EDO,NA,PNS ; X-RAY DIFFRACTION 2.82Å

e6ql7A7[A:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7B6[B:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7C6[C:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7D4[D:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7E3[E:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7F7[F:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7a5[a:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7b6[b:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7c2[c:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7d5[d:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7e4[e:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql7f3[f:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; X-RAY DIFFRACTION 4.6Å

e6ql9A4[A:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: EDO,PNS ; X-RAY DIFFRACTION 2.82Å

e6ql9B5[B:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: ACT,EDO,NA,PNS ; X-RAY DIFFRACTION 2.82Å

e6ql9C3[C:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: ACT,EDO,NA,PNS ; X-RAY DIFFRACTION 2.82Å

e6ql9E1[E:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: EDO,NA,PNS ; X-RAY DIFFRACTION 2.82Å

e6ql9F6[F:1399-1746] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Fatty acid synthase subunit alpha ; ligands: EDO,PNS ; X-RAY DIFFRACTION 2.82Å

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