1DD8
CRYSTAL STRUCTURE OF BETA-KETOACYL-[ACYL CARRIER PROTEIN] SYNTHASE I FROM ESCHERICHIA COLI
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
B | SCOP2B Superfamily | Thiolase-like | 8037440 | 3000122 | SCOP2B (2022-06-29) |
B | SCOP2B Superfamily | Thiolase-like | 8037437 | 3000122 | SCOP2B (2022-06-29) |
C | SCOP2B Superfamily | Thiolase-like | 8037437 | 3000122 | SCOP2B (2022-06-29) |
C | SCOP2B Superfamily | Thiolase-like | 8037440 | 3000122 | SCOP2B (2022-06-29) |
D | SCOP2B Superfamily | Thiolase-like | 8037437 | 3000122 | SCOP2B (2022-06-29) |
D | SCOP2B Superfamily | Thiolase-like | 8037440 | 3000122 | SCOP2B (2022-06-29) |
A | SCOP2B Superfamily | Thiolase-like | 8037440 | 3000122 | SCOP2B (2022-06-29) |
A | SCOP2B Superfamily | Thiolase-like | 8037437 | 3000122 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
B | ketoacyl-synt | e1dd8B1 | A: a/b three-layered sandwiches | X: Thiolase-like (From Topology) | H: Thiolase-like (From Topology) | T: Thiolase-like | F: ketoacyl-synt | ECOD (1.6) |
B | Ketoacyl-synt_C | e1dd8B2 | A: a/b three-layered sandwiches | X: Thiolase-like (From Topology) | H: Thiolase-like (From Topology) | T: Thiolase-like | F: Ketoacyl-synt_C | ECOD (1.6) |
C | ketoacyl-synt | e1dd8C1 | A: a/b three-layered sandwiches | X: Thiolase-like (From Topology) | H: Thiolase-like (From Topology) | T: Thiolase-like | F: ketoacyl-synt | ECOD (1.6) |
C | Ketoacyl-synt_C | e1dd8C2 | A: a/b three-layered sandwiches | X: Thiolase-like (From Topology) | H: Thiolase-like (From Topology) | T: Thiolase-like | F: Ketoacyl-synt_C | ECOD (1.6) |
D | ketoacyl-synt | e1dd8D1 | A: a/b three-layered sandwiches | X: Thiolase-like (From Topology) | H: Thiolase-like (From Topology) | T: Thiolase-like | F: ketoacyl-synt | ECOD (1.6) |
D | Ketoacyl-synt_C | e1dd8D2 | A: a/b three-layered sandwiches | X: Thiolase-like (From Topology) | H: Thiolase-like (From Topology) | T: Thiolase-like | F: Ketoacyl-synt_C | ECOD (1.6) |
A | ketoacyl-synt | e1dd8A1 | A: a/b three-layered sandwiches | X: Thiolase-like (From Topology) | H: Thiolase-like (From Topology) | T: Thiolase-like | F: ketoacyl-synt | ECOD (1.6) |
A | Ketoacyl-synt_C | e1dd8A2 | A: a/b three-layered sandwiches | X: Thiolase-like (From Topology) | H: Thiolase-like (From Topology) | T: Thiolase-like | F: Ketoacyl-synt_C | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
B | 3.40.47.10 | Alpha Beta | 3-Layer(aba) Sandwich | Peroxisomal Thiolase | Chain A, domain 1 | CATH (4.3.0) |
C | 3.40.47.10 | Alpha Beta | 3-Layer(aba) Sandwich | Peroxisomal Thiolase | Chain A, domain 1 | CATH (4.3.0) |
D | 3.40.47.10 | Alpha Beta | 3-Layer(aba) Sandwich | Peroxisomal Thiolase | Chain A, domain 1 | CATH (4.3.0) |
A | 3.40.47.10 | Alpha Beta | 3-Layer(aba) Sandwich | Peroxisomal Thiolase | Chain A, domain 1 | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF02801 | Beta-ketoacyl synthase, C-terminal domain (Ketoacyl-synt_C) | Beta-ketoacyl synthase, C-terminal domain | The structure of beta-ketoacyl synthase is similar to that of the thiolase family (Pfam:PF00108) and also chalcone synthase. The active site of beta-ketoacyl synthase is located between the N and C-terminal domains. | Domain | |
PF00109 | Beta-ketoacyl synthase, N-terminal domain (ketoacyl-synt) | Beta-ketoacyl synthase, N-terminal domain | The structure of beta-ketoacyl synthase is similar to that of the thiolase family (Pfam:PF00108) and also chalcone synthase. The active site of beta-ketoacyl synthase is located between the N and C-terminal domains. The N-terminal domain contains m ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR016039 | Thiolase-like | Homologous Superfamily | |
IPR014031 | Beta-ketoacyl synthase, C-terminal | Domain | |
IPR000794 | Beta-ketoacyl synthase | Family | |
IPR018201 | Beta-ketoacyl synthase, active site | Active Site | |
IPR014030 | Beta-ketoacyl synthase-like, N-terminal | Domain | |
IPR020841 | Polyketide synthase, beta-ketoacyl synthase domain | Domain |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
beta-ketoacyl-[acyl carrier protein] synthase I M-CSA #292 | Beta-ketoacyl-acyl carrier protein synthase (KAS) I catalyses the Claisen condensation between acyl-ACP and malonyl-ACP to produce free acyl carrier protein (ACP), 3-oxoacyl ACP, and carbon dioxide. KAS I fuctions, together with KAS II and KAS III, to synthesise C16 and C18 fatty acids in plant plastids: KAS III is specific for the first step of the elongation and uses a CoA-activated primer substrate, while KAS I extends C4 to C16 in six rounds of elongation using an ACP substrate. KAS II then carries out an additional step to yield C18. In Escherichia coli, KAS I is essential for the construction of the unsaturated fatty acids characterising Escherichia coli membrane lipids. | Defined by 6 residues: CYS:A-163HIS:A-298LYS:A-328HIS:A-333PHE:A-390PHE:A-392 | EC: 2.3.1.41 (PDB Primary Data) |