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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: ACP_syn_III_C

PF08541 CL0046

Representatives:

e1hnjA2[A:175-317] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-KETOACYL-ACYL CARRIER PROTEIN SYNTHASE III ; ligands: MLC ; X-RAY DIFFRACTION 1.46Å

e6b2sA1[A:220-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[ACP] synthase III ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 2.000Å

e6b2rA2[A:220-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[ACP] synthase III ; ligands: GOL ; X-RAY DIFFRACTION 1.770Å

e6b2rB2[B:220-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[ACP] synthase III ; ligands: GOL ; X-RAY DIFFRACTION 1.770Å

e6b2sB2[B:220-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[ACP] synthase III ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 2.000Å

e6b2tA2[A:220-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[ACP] synthase III ; ligands: GOL,PO4 ; X-RAY DIFFRACTION 2.800Å

e6b2tB1[B:220-358] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[ACP] synthase III ; ligands: GOL ; X-RAY DIFFRACTION 2.800Å

e6b2uA1[A:220-358] Image Pymol Jmol Links: PDB, SCOP, CATH

3-oxoacyl-[ACP] synthase III ; ligands: CER ; X-RAY DIFFRACTION 2.040Å

e5wgcB2[B:184-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Daunorubicin-doxorubicin polyketide synthase ; ligands: AFY ; X-RAY DIFFRACTION 2.15Å

e5wgcA1[A:184-350] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Daunorubicin-doxorubicin polyketide synthase ; ligands: AFY ; X-RAY DIFFRACTION 2.15Å

e6eszA2[A:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPD,SO4 ; X-RAY DIFFRACTION 1.840Å

e6et3A1[A:191-200,A:238-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: BU3,SO4 ; X-RAY DIFFRACTION 2.250Å

e6eszC2[C:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPD ; X-RAY DIFFRACTION 1.840Å

e6et0A2[A:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPD,MRD,SO4 ; X-RAY DIFFRACTION 1.530Å

e6et0C1[C:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPD,MRD,SO4 ; X-RAY DIFFRACTION 1.530Å

e6et1A2[A:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; X-RAY DIFFRACTION 2.650Å

e6et1C1[C:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; X-RAY DIFFRACTION 2.650Å

e6et1E1[E:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; X-RAY DIFFRACTION 2.650Å

e6et1G1[G:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; X-RAY DIFFRACTION 2.650Å

e6et2A1[A:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPO ; X-RAY DIFFRACTION 2.600Å

e6et2C1[C:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPO ; X-RAY DIFFRACTION 2.600Å

e6et2E2[E:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPO ; X-RAY DIFFRACTION 2.600Å

e6et2G2[G:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPO ; X-RAY DIFFRACTION 2.600Å

e6et2I1[I:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPO ; X-RAY DIFFRACTION 2.600Å

e6et2K2[K:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPO ; X-RAY DIFFRACTION 2.600Å

e6et2M1[M:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPO ; X-RAY DIFFRACTION 2.600Å

e6et2O1[O:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; ligands: MPO ; X-RAY DIFFRACTION 2.600Å

e6et3C2[C:191-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PqsC ; X-RAY DIFFRACTION 2.250Å

e6a9nA1[A:184-332] Image Pymol Jmol Links: PDB, SCOP, CATH

3-oxoacyl-[acyl-carrier-protein] synthase 3 ; ligands: K ; X-RAY DIFFRACTION 2.100Å

e6a9nB1[B:184-332] Image Pymol Jmol Links: PDB, SCOP, CATH

3-oxoacyl-[acyl-carrier-protein] synthase 3 ; ligands: K ; X-RAY DIFFRACTION 2.100Å

e5yo9A1[A:217-368] Image Pymol Jmol Links: PDB, SCOP, CATH

3-Oxoacyl-[acyl-carrier-(ACP)] synthase III C terminal family protein ; ligands: GOL ; X-RAY DIFFRACTION 2.000Å

e5yo9B2[B:217-367] Image Pymol Jmol Links: PDB, SCOP, CATH

3-Oxoacyl-[acyl-carrier-(ACP)] synthase III C terminal family protein ; ligands: COA,GOL ; X-RAY DIFFRACTION 2.000Å

e5yoaA1[A:217-368] Image Pymol Jmol Links: PDB, SCOP, CATH

3-Oxoacyl-[acyl-carrier-(ACP)] synthase III C terminal family protein ; X-RAY DIFFRACTION 2.330Å

e5yoaB2[B:217-367] Image Pymol Jmol Links: PDB, SCOP, CATH

3-Oxoacyl-[acyl-carrier-(ACP)] synthase III C terminal family protein ; ligands: CO8 ; X-RAY DIFFRACTION 2.330Å

e5yzuA1[A:217-368] Image Pymol Jmol Links: PDB, SCOP, CATH

3-Oxoacyl-[acyl-carrier-(ACP)] synthase III C terminal family protein ; X-RAY DIFFRACTION 2.100Å

e5yzuB1[B:217-367] Image Pymol Jmol Links: PDB, SCOP, CATH

3-Oxoacyl-[acyl-carrier-(ACP)] synthase III C terminal family protein ; X-RAY DIFFRACTION 2.100Å

e3ledA2[A:219-371] Image Pymol Jmol Links: PDB, SCOP, CATH

3-oxoacyl-acyl carrier protein synthase III ; X-RAY DIFFRACTION 1.45Å

e3ledB1[B:218-371] Image Pymol Jmol Links: PDB, SCOP, CATH

3-oxoacyl-acyl carrier protein synthase III ; ligands: FMT ; X-RAY DIFFRACTION 1.45Å

e5gk0B1[B:206-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ketosynthase StlD ; X-RAY DIFFRACTION 2.300Å

e5gk0C1[C:206-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ketosynthase StlD ; X-RAY DIFFRACTION 2.300Å

e5gk1A1[A:206-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ketosynthase StlD ; ligands: 2K3 ; X-RAY DIFFRACTION 1.830Å

e5gk1B1[B:206-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ketosynthase StlD ; X-RAY DIFFRACTION 1.830Å

e5gk1C1[C:206-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ketosynthase StlD ; ligands: 2K3 ; X-RAY DIFFRACTION 1.830Å

e5gk1D1[D:206-382] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Ketosynthase StlD ; X-RAY DIFFRACTION 1.830Å

e6kueA1[A:175-328] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[acyl-carrier-protein] synthase III ; X-RAY DIFFRACTION 1.99Å

e6kueB2[B:175-328] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[acyl-carrier-protein] synthase III ; X-RAY DIFFRACTION 1.99Å

e6kvsA1[A:485-626] Image Pymol Jmol Links: PDB, SCOP, CATH

3-oxoacyl-[acyl-carrier-protein] synthase 3 ; ligands: OAX ; X-RAY DIFFRACTION 2.3Å

e6kvsB1[B:485-626] Image Pymol Jmol Links: PDB, SCOP, CATH

3-oxoacyl-[acyl-carrier-protein] synthase 3 ; ligands: OAX ; X-RAY DIFFRACTION 2.3Å

e6x7rA1[A:175-317] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

3-oxoacyl-[acyl-carrier-protein] synthase 3 ; ligands: DMS,UT7 ; X-RAY DIFFRACTION 1.35Å

e7eqiA1[A:175-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ChlB3 ; X-RAY DIFFRACTION 3.100Å

e6x7sA2[A:175-317] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: DMS,UT7

e7eqiB2[B:175-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ChlB3 ; X-RAY DIFFRACTION 3.100Å

e7eqiC2[C:175-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ChlB3 ; X-RAY DIFFRACTION 3.100Å

e7eqiD2[D:175-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ChlB3 ; X-RAY DIFFRACTION 3.100Å

e7eqiE1[E:175-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ChlB3 ; X-RAY DIFFRACTION 3.100Å

e7eqiF2[F:175-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ChlB3 ; X-RAY DIFFRACTION 3.100Å

e7eqiG1[G:175-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ChlB3 ; X-RAY DIFFRACTION 3.100Å

e7eqiH2[H:175-346] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ChlB3 ; X-RAY DIFFRACTION 3.100Å

e8d1uA2[A:175-317] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[acyl-carrier-protein] synthase 3 ; ligands: CL,UT7 ; X-RAY DIFFRACTION 1.302Å

e7vyuA2[A:176-342] Image Pymol Jmol Links: PDB, SCOP, CATH

3-oxoacyl-ACP synthase ; X-RAY DIFFRACTION 1.800Å

e7vyuB2[B:176-342] Image Pymol Jmol Links: PDB, SCOP, CATH

3-oxoacyl-ACP synthase ; X-RAY DIFFRACTION 1.800Å

e5m3kA1[A:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PhlA ; X-RAY DIFFRACTION 2.83Å

e5m3kD1[D:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PhlA ; X-RAY DIFFRACTION 2.83Å

e5mg5A1[A:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hydroxymethylglutaryl-CoA synthase ; X-RAY DIFFRACTION 3.44Å

e5mg5D1[D:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hydroxymethylglutaryl-CoA synthase ; X-RAY DIFFRACTION 3.44Å

e5mg5G1[G:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hydroxymethylglutaryl-CoA synthase ; X-RAY DIFFRACTION 3.44Å

e5mg5J1[J:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hydroxymethylglutaryl-CoA synthase ; X-RAY DIFFRACTION 3.44Å

e5mg5M2[M:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hydroxymethylglutaryl-CoA synthase ; X-RAY DIFFRACTION 3.44Å

e5mg5P2[P:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hydroxymethylglutaryl-CoA synthase ; X-RAY DIFFRACTION 3.44Å

e5mg5S1[S:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hydroxymethylglutaryl-CoA synthase ; X-RAY DIFFRACTION 3.44Å

e5mg5V1[V:174-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hydroxymethylglutaryl-CoA synthase ; X-RAY DIFFRACTION 3.44Å

e6esqJ1[J:173-349] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HydroxyMethylGlutaryl-CoA synthase ; ligands: COA ; X-RAY DIFFRACTION 2.95Å

e6esqI2[I:173-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HydroxyMethylGlutaryl-CoA synthase ; ligands: COA ; X-RAY DIFFRACTION 2.95Å

e6esqK2[K:173-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HydroxyMethylGlutaryl-CoA synthase ; ligands: COA ; X-RAY DIFFRACTION 2.95Å

e6esqL1[L:173-348] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HydroxyMethylGlutaryl-CoA synthase ; ligands: COA,K ; X-RAY DIFFRACTION 2.95Å

e6et9I1[I:173-349] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HydroxyMethylGlutaryl-CoA synthase ; ligands: GOL,TRS ; X-RAY DIFFRACTION 2.75Å

e6et9J1[J:173-349] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HydroxyMethylGlutaryl-CoA synthase ; ligands: GOL,TRS ; X-RAY DIFFRACTION 2.75Å

e6et9K2[K:173-349] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HydroxyMethylGlutaryl-CoA synthase ; ligands: GOL,TRS ; X-RAY DIFFRACTION 2.75Å

e6et9L1[L:173-349] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HydroxyMethylGlutaryl-CoA synthase ; ligands: GOL ; X-RAY DIFFRACTION 2.75Å

Previous

e1u6eA2[A:175-317] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

3-oxoacyl-[acyl-carrier-protein] synthase III ; ligands: CL ; X-RAY DIFFRACTION 1.85Å

e1ub7A2[A:174-322] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

3-OXOACYL-[ACYL-CARRIER PROTEIN] SYNTHASE ; ligands: GOL ; X-RAY DIFFRACTION 2.3Å

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