7M7E | pdb_00007m7e

6-Deoxyerythronolide B synthase (DEBS) hybrid module (M3/1) in complex with antibody fragment 1B2

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth A]	SCOP2B Superfamily	FabD/lysophospholipase-like	8055831	3001121	SCOP2B (2022-06-29)
B [auth A]	SCOP2B Superfamily	FabD/lysophospholipase-like	8055831	3001121	SCOP2B (2022-06-29)
B [auth A]	SCOP2B Superfamily	Probable ACP-binding domain of malonyl-CoA ACP transacylase	8055834	3001224	SCOP2B (2022-06-29)
B [auth A]	SCOP2B Superfamily	Thiolase-like	8055829	3000122	SCOP2B (2022-06-29)
B [auth A]	SCOP2B Superfamily	KASAT domain-like	8055827	3002319	SCOP2B (2022-06-29)
B [auth A]	SCOP2B Superfamily	KASAT domain-like	8055827	3002319	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	Thiolase-like	8055829	3000122	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	KASAT domain-like	8055827	3002319	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	FabD/lysophospholipase-like	8055831	3001121	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	FabD/lysophospholipase-like	8055831	3001121	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	Probable ACP-binding domain of malonyl-CoA ACP transacylase	8055834	3001224	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	KASAT domain-like	8055827	3002319	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)
D	C1-set_4	e7m7eD2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
D	V-set	e7m7eD1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
C	C1-set_1	e7m7eC2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
C	V-set_12	e7m7eC1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
B [auth A]	Acyl_transf_1_2nd	e7m7eA4	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: Acyl_transf_1_2nd	ECOD (1.6)
B [auth A]	PksD_2	e7m7eA1	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: PksD_2	ECOD (1.6)
B [auth A]	Acyl_transf_1_1st	e7m7eA2	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: FabD/lysophospholipase-like	F: Acyl_transf_1_1st	ECOD (1.6)
B [auth A]	ketoacyl-synt	e7m7eA5	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 [auth A]	Ketoacyl-synt_C	e7m7eA3	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 [auth B]	Acyl_transf_1_2nd	e7m7eB4	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: Acyl_transf_1_2nd	ECOD (1.6)
A [auth B]	PksD_2	e7m7eB3	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: PksD_2	ECOD (1.6)
A [auth B]	Acyl_transf_1_1st	e7m7eB2	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: FabD/lysophospholipase-like	F: Acyl_transf_1_1st	ECOD (1.6)
A [auth B]	ketoacyl-synt	e7m7eB1	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 [auth B]	Ketoacyl-synt_C	e7m7eB5	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)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A [auth B]	3.40.47.10	Alpha Beta	3-Layer(aba) Sandwich	Peroxisomal Thiolase	Chain A, domain 1	CATH (utative)
A [auth B]	3.30.70.3290	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (utative)
A [auth B]	3.40.366.10	Alpha Beta	3-Layer(aba) Sandwich	Malonyl-Coenzyme A Acyl Carrier Protein	domain 2	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D	Light Chain	IGKV2	Kappa	6-deoxyerythronolide-b synthase erya2, modules 3 and 4,eryai,6-deoxyerythronolide-b synthase erya3, modules 5 and 6 chimera \| 6-deoxyerythronolide-b synthase erya2, modules 3 and 4,eryai,6-deoxyerythronolide-b synthase erya3, modules 5 and 6 chimera	SAbDab (2026-01-23)
C	Heavy Chain	IGHV3	-	6-deoxyerythronolide-b synthase erya2, modules 3 and 4,eryai,6-deoxyerythronolide-b synthase erya3, modules 5 and 6 chimera \| 6-deoxyerythronolide-b synthase erya2, modules 3 and 4,eryai,6-deoxyerythronolide-b synthase erya3, modules 5 and 6 chimera	SAbDab (2026-01-23)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D	1B2 (light chain)	-	-	-
C	1B2 (heavy chain)	-	-	-
A [auth B], B [auth A]	6-deoxyerythronolide-B synthase EryA2, modules 3 and 4,EryAI,6-deoxyerythronolide-B synthase EryA3, modules 5 and 6 chimera	acyltransferase activity erythronolide synthase activity acyltransferase activity, transferring groups other than amino-acyl groups transferase activity catalytic activity vitamin binding modified amino acid binding binding ion binding anion binding phosphopantetheine binding sulfur compound binding small molecule binding fatty acid synthase activity acyltransferase activity erythronolide synthase activity acyltransferase activity, transferring groups other than amino-acyl groups transferase activity catalytic activity vitamin binding modified amino acid binding binding ion binding anion binding phosphopantetheine binding sulfur compound binding small molecule binding fatty acid synthase activity 3-oxoacyl-[acyl-carrier-protein] synthase activity oxidoreductase activity	fatty acid metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process oxoacid 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 biosynthetic process small molecule metabolic process metabolic process fatty acid metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process oxoacid 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 biosynthetic 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 antibiotic metabolic process polyketide biosynthetic process secondary metabolite biosynthetic process lactone metabolic process lactone biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A]	IPR014031	Beta-ketoacyl synthase, C-terminal domain	Domain
A [auth B], B [auth A]	IPR016035	Acyl transferase/acyl hydrolase/lysophospholipase	Homologous Superfamily
A [auth B], B [auth A]	IPR006162	Phosphopantetheine attachment site	PTM
A [auth B], B [auth A]	IPR032821	Polyketide synthase, C-terminal extension	Domain
A [auth B], B [auth A]	IPR057326	Ketoreductase domain	Domain
A [auth B], B [auth A]	IPR009081	Phosphopantetheine binding ACP domain	Domain
A [auth B], B [auth A]	IPR020806	Polyketide synthase-like, phosphopantetheine-binding domain	Domain
A [auth B], B [auth A]	IPR014030	Beta-ketoacyl synthase-like, N-terminal domain	Domain
A [auth B], B [auth A]	IPR013968	Polyketide synthase-like, ketoreductase domain	Domain
A [auth B], B [auth A]	IPR016039	Thiolase-like	Homologous Superfamily
A [auth B], B [auth A]	IPR001227	Acyl transferase domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR016036	Malonyl-CoA ACP transacylase, ACP-binding	Homologous Superfamily
A [auth B], B [auth A]	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR050091	Polyketide and Nonribosomal Peptide Biosynthesis Enzymes	Family
A [auth B], B [auth A]	IPR018201	Beta-ketoacyl synthase, active site	Active Site
A [auth B], B [auth A]	IPR020841	Polyketide synthase, beta-ketoacyl synthase domain	Domain
A [auth B], B [auth A]	IPR036736	ACP-like superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR014043	Acyl transferase domain	Domain
A [auth B], B [auth A]	IPR016035	Acyl transferase/acyl hydrolase/lysophospholipase	Homologous Superfamily
A [auth B], B [auth A]	IPR015083	Polyketide synthase NorB/C/GfsB-E-like, docking domain	Domain
A [auth B], B [auth A]	IPR006162	Phosphopantetheine attachment site	PTM
A [auth B], B [auth A]	IPR013154	Alcohol dehydrogenase-like, N-terminal	Domain
A [auth B], B [auth A]	IPR057326	Ketoreductase domain	Domain
A [auth B], B [auth A]	IPR036347	Erythronolide synthase, docking domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR014030	Beta-ketoacyl synthase-like, N-terminal domain	Domain
A [auth B], B [auth A]	IPR049552	Polyketide synthase, dehydratase domain, N-terminal	Domain
A [auth B], B [auth A]	IPR049900	Polyketide synthase, dehydratase domain	Domain
A [auth B], B [auth A]	IPR049551	Polyketide synthase, dehydratase domain, C-terminal	Domain
A [auth B], B [auth A]	IPR016036	Malonyl-CoA ACP transacylase, ACP-binding	Homologous Superfamily
A [auth B], B [auth A]	IPR050091	Polyketide and Nonribosomal Peptide Biosynthesis Enzymes	Family
A [auth B], B [auth A]	IPR020841	Polyketide synthase, beta-ketoacyl synthase domain	Domain
A [auth B], B [auth A]	IPR020807	Polyketide/metazoan fatty acid synthase-like, dehydratase domain	Domain
A [auth B], B [auth A]	IPR036736	ACP-like superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR014043	Acyl transferase domain	Domain
A [auth B], B [auth A]	IPR020843	Enoylreductase domain	Domain
A [auth B], B [auth A]	IPR014031	Beta-ketoacyl synthase, C-terminal domain	Domain
A [auth B], B [auth A]	IPR032821	Polyketide synthase, C-terminal extension	Domain
A [auth B], B [auth A]	IPR011032	GroES-like superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR009081	Phosphopantetheine binding ACP domain	Domain
A [auth B], B [auth A]	IPR020806	Polyketide synthase-like, phosphopantetheine-binding domain	Domain
A [auth B], B [auth A]	IPR015357	EryA2-like, docking domain	Domain
A [auth B], B [auth A]	IPR013968	Polyketide synthase-like, ketoreductase domain	Domain
A [auth B], B [auth A]	IPR016039	Thiolase-like	Homologous Superfamily
A [auth B], B [auth A]	IPR001227	Acyl transferase domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR018201	Beta-ketoacyl synthase, active site	Active Site
A [auth B], B [auth A]	IPR042104	Polyketide synthase, dehydratase domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR055123	Polyketide synthase extender module SpnB-like, Rossmann fold domain	Domain
A [auth B], B [auth A]	IPR016035	Acyl transferase/acyl hydrolase/lysophospholipase	Homologous Superfamily
A [auth B], B [auth A]	IPR015083	Polyketide synthase NorB/C/GfsB-E-like, docking domain	Domain
A [auth B], B [auth A]	IPR006162	Phosphopantetheine attachment site	PTM
A [auth B], B [auth A]	IPR057326	Ketoreductase domain	Domain
A [auth B], B [auth A]	IPR014030	Beta-ketoacyl synthase-like, N-terminal domain	Domain
A [auth B], B [auth A]	IPR016036	Malonyl-CoA ACP transacylase, ACP-binding	Homologous Superfamily
A [auth B], B [auth A]	IPR050091	Polyketide and Nonribosomal Peptide Biosynthesis Enzymes	Family
A [auth B], B [auth A]	IPR020841	Polyketide synthase, beta-ketoacyl synthase domain	Domain
A [auth B], B [auth A]	IPR036736	ACP-like superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR014043	Acyl transferase domain	Domain
A [auth B], B [auth A]	IPR020802	Thioesterase TesA-like	Domain
A [auth B], B [auth A]	IPR014031	Beta-ketoacyl synthase, C-terminal domain	Domain
A [auth B], B [auth A]	IPR032821	Polyketide synthase, C-terminal extension	Domain
A [auth B], B [auth A]	IPR009081	Phosphopantetheine binding ACP domain	Domain
A [auth B], B [auth A]	IPR020806	Polyketide synthase-like, phosphopantetheine-binding domain	Domain
A [auth B], B [auth A]	IPR036299	Polyketide synthase, docking domain superfmaily	Homologous Superfamily
A [auth B], B [auth A]	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily
A [auth B], B [auth A]	IPR013968	Polyketide synthase-like, ketoreductase domain	Domain
A [auth B], B [auth A]	IPR016039	Thiolase-like	Homologous Superfamily
A [auth B], B [auth A]	IPR001227	Acyl transferase domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR018201	Beta-ketoacyl synthase, active site	Active Site
A [auth B], B [auth A]	IPR001031	Thioesterase	Domain