8EE1

KS-AT didomain from module 2 of the 6-deoxyerythronolide B synthase in complex with antibody fragment AA5

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e8ee1A3	A: a+b two layers	X: Alpha-beta plaits	H: Probable ACP-binding domain of malonyl-CoA ACP transacylase (From Topology)	T: Probable ACP-binding domain of malonyl-CoA ACP transacylase	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF22621	e8ee1A5	A: a+b two layers	X: KS-MAT linker domain in fatty acid synthase (From Topology)	H: KS-MAT linker domain in fatty acid synthase (From Topology)	T: KS-MAT linker domain in fatty acid synthase	F: PF22621	ECOD (1.6)
A	PF00698	e8ee1A4	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: FabD/lysophospholipase-like	F: PF00698	ECOD (1.6)
A	PF00109	e8ee1A1	A: a/b three-layered sandwiches	X: Thiolase-like (From Topology)	H: Thiolase-like (From Topology)	T: Thiolase-like	F: PF00109	ECOD (1.6)
A	PF02801	e8ee1A2	A: a/b three-layered sandwiches	X: Thiolase-like (From Topology)	H: Thiolase-like (From Topology)	T: Thiolase-like	F: PF02801	ECOD (1.6)
D	F_UNCLASSIFIED	e8ee1D1	A: a+b two layers	X: Alpha-beta plaits	H: Probable ACP-binding domain of malonyl-CoA ACP transacylase (From Topology)	T: Probable ACP-binding domain of malonyl-CoA ACP transacylase	F: F_UNCLASSIFIED	ECOD (1.6)
D	PF22621	e8ee1D2	A: a+b two layers	X: KS-MAT linker domain in fatty acid synthase (From Topology)	H: KS-MAT linker domain in fatty acid synthase (From Topology)	T: KS-MAT linker domain in fatty acid synthase	F: PF22621	ECOD (1.6)
D	PF00698	e8ee1D3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: FabD/lysophospholipase-like	F: PF00698	ECOD (1.6)
D	PF00109	e8ee1D4	A: a/b three-layered sandwiches	X: Thiolase-like (From Topology)	H: Thiolase-like (From Topology)	T: Thiolase-like	F: PF00109	ECOD (1.6)
D	PF02801	e8ee1D5	A: a/b three-layered sandwiches	X: Thiolase-like (From Topology)	H: Thiolase-like (From Topology)	T: Thiolase-like	F: PF02801	ECOD (1.6)
B	PF07654	e8ee1B1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07654	ECOD (1.6)
B	PF07686	e8ee1B2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)
E [auth G]	PF07654	e8ee1G1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07654	ECOD (1.6)
E [auth G]	PF07686	e8ee1G2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)
C	PF07654	e8ee1C2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07654	ECOD (1.6)
C	PF07686	e8ee1C1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)
F [auth H]	PF07654	e8ee1H2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07654	ECOD (1.6)
F [auth H]	PF07686	e8ee1H1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, E [auth G]	Heavy Chain	IGHV4	-	6-deoxyerythronolide b synthase	SAbDab (2024-05-03)
C, F [auth H]	Light Chain	IGKV3	Kappa	6-deoxyerythronolide b synthase	SAbDab (2024-05-03)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D	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
A, D	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 ...	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 most of the structures involved in dimer formation and also the active site cysteine [1].	Domain
A, D	PF16197	Ketoacyl-synthetase C-terminal extension (KAsynt_C_assoc)	Ketoacyl-synthetase C-terminal extension	-	Family
A, D	PF00698	Acyl transferase domain (Acyl_transf_1)	Acyl transferase domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D	6-deoxyerythronolide B synthase	acyltransferase activity erythronolide synthase activity acyltransferase activity, transferring groups other than amino-acyl groups transferase activity catalytic activity vitamin binding amide binding modified amino acid binding binding phosphopantetheine binding small molecule binding 3-oxoacyl-[acyl-carrier-protein] synthase activity	fatty acid metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process oxoacid metabolic process cellular biosynthetic process cellular metabolic process carboxylic acid metabolic process lipid biosynthetic process primary metabolic process organic acid biosynthetic process organic acid metabolic process fatty acid biosynthetic process carboxylic acid biosynthetic process organic substance metabolic process biosynthetic process fatty acid metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process oxoacid metabolic process cellular biosynthetic process cellular metabolic process carboxylic acid metabolic process lipid biosynthetic process primary metabolic process organic acid biosynthetic process organic acid metabolic process fatty acid biosynthetic process carboxylic acid biosynthetic process organic substance metabolic process biosynthetic process organic substance biosynthetic process cellular lipid metabolic process small molecule metabolic process metabolic process cellular process monocarboxylic acid metabolic process lipid metabolic process macrolide biosynthetic process polyketide metabolic process macrolide metabolic process secondary metabolic process antibiotic biosynthetic process organic cyclic compound metabolic process antibiotic metabolic process polyketide biosynthetic process secondary metabolite biosynthetic process lactone metabolic process lactone biosynthetic process organic cyclic compound biosynthetic process	-
B, E [auth G]	AA5 antibody heavy chain	-	-	-
C, F [auth H]	AA5 antibody light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D	IPR016035	Acyl transferase/acyl hydrolase/lysophospholipase	Homologous Superfamily
A, D	IPR014031	Beta-ketoacyl synthase, C-terminal	Domain
A, D	IPR006162	Phosphopantetheine attachment site	PTM
A, D	IPR032821	Polyketide synthase, C-terminal extension	Domain
A, D	IPR009081	Phosphopantetheine binding ACP domain	Domain
A, D	IPR014030	Beta-ketoacyl synthase, N-terminal	Domain
A, D	IPR013968	Polyketide synthase, ketoreductase domain	Domain
A, D	IPR016039	Thiolase-like	Homologous Superfamily
A, D	IPR001227	Acyl transferase domain superfamily	Homologous Superfamily
A, D	IPR016036	Malonyl-CoA ACP transacylase, ACP-binding	Homologous Superfamily
A, D	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, D	IPR020806	Polyketide synthase, phosphopantetheine-binding domain	Domain
A, D	IPR014043	Acyl transferase	Domain
A, D	IPR018201	Beta-ketoacyl synthase, active site	Active Site
A, D	IPR020841	Polyketide synthase, beta-ketoacyl synthase domain	Domain
A, D	IPR036736	ACP-like superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.