Annotations: 7M7J

6-Deoxyerythronolide B synthase (DEBS) module 1 in complex with antibody fragment 1B2: "turnstile closed" state (TE-free)

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody 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)
D	Secretin_N	e7m7jD1	A: alpha arrays	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Secretin_N	ECOD (v295)
F	Secretin_N	e7m7jF1	A: alpha arrays	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Secretin_N	ECOD (v295)
C	Secretin_N	e7m7jC1	A: alpha arrays	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Secretin_N	ECOD (v295)
E	Secretin_N	e7m7jE1	A: alpha arrays	X: Nuclear receptor ligand-binding domain	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Secretin_N	ECOD (v295)
A [auth B]	TRPM2	e7m7jB01	A: alpha arrays	X: Histone-like	H: all-alpha NTP pyrophosphatases	T: Hypothetical protein AF_0060	F: TRPM2	ECOD (v295)
B [auth A]	AAA_lid_RFC1	e7m7jA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: AAA_lid_RFC1	ECOD (v295)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D, F	Light Chain	IGKV2	Kappa	eryai	SAbDab (2026-06-26)
C, E	Heavy Chain	IGHV3	-	eryai	SAbDab (2026-06-26)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D, F	1B2 (light chain)	-	-	-
C, E	1B2 (heavy chain)	-	-	-
A [auth B], B [auth A]	EryAI	vitamin binding modified amino acid binding binding ion binding anion binding phosphopantetheine binding sulfur compound binding small molecule binding acyltransferase activity 3-oxoacyl-[acyl-carrier-protein] synthase activity acyltransferase activity, transferring groups other than amino-acyl groups transferase activity catalytic activity erythronolide synthase activity vitamin binding modified amino acid binding binding ion binding anion binding phosphopantetheine binding sulfur compound binding small molecule binding acyltransferase activity 3-oxoacyl-[acyl-carrier-protein] synthase activity acyltransferase activity, transferring groups other than amino-acyl groups transferase activity catalytic activity erythronolide synthase activity fatty acid synthase 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 fatty acid biosynthetic process carboxylic acid biosynthetic process biosynthetic process small molecule metabolic process metabolic process cellular process monocarboxylic acid 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 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]	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]	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]	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]	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]	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]	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]	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]	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]	IPR055123	Polyketide synthase extender module SpnB-like, Rossmann fold domain	Domain

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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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

7M7J | pdb_00007m7j

6-Deoxyerythronolide B synthase (DEBS) module 1 in complex with antibody fragment 1B2: "turnstile closed" state (TE-free)

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

SAbDab Antibody Annotation SAbDab Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage