4LN9

Crystal structure of the dehydratase domain from the terminal module of the rifamycin polyketide synthase

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family 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	SCOP2B Superfamily	Thioesterase/thiol ester dehydrase-isomerase-like	8055945	3000149	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Thioesterase/thiol ester dehydrase-isomerase-like	8055944	3000149	SCOP2B (2022-06-29)
A	SCOP2 Family	PKS dehydratase-like	8050563	4006953	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Thioesterase/thiol ester dehydrase-isomerase-like	8055945	3000149	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Thioesterase/thiol ester dehydrase-isomerase-like	8055944	3000149	SCOP2 (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	PS-DH_N	e4ln9B6	A: a+b two layers	X: Thioesterase/thiol ester dehydrase-isomerase-like	H: Thioesterase/thiol ester dehydrase-isomerase (From Topology)	T: Thioesterase/thiol ester dehydrase-isomerase	F: PS-DH_N	ECOD (1.6)
B	PS-DH_C	e4ln9B5	A: a+b two layers	X: Thioesterase/thiol ester dehydrase-isomerase-like	H: Thioesterase/thiol ester dehydrase-isomerase (From Topology)	T: Thioesterase/thiol ester dehydrase-isomerase	F: PS-DH_C	ECOD (1.6)
A	PS-DH_N	e4ln9A6	A: a+b two layers	X: Thioesterase/thiol ester dehydrase-isomerase-like	H: Thioesterase/thiol ester dehydrase-isomerase (From Topology)	T: Thioesterase/thiol ester dehydrase-isomerase	F: PS-DH_N	ECOD (1.6)
A	PS-DH_C	e4ln9A5	A: a+b two layers	X: Thioesterase/thiol ester dehydrase-isomerase-like	H: Thioesterase/thiol ester dehydrase-isomerase (From Topology)	T: Thioesterase/thiol ester dehydrase-isomerase	F: PS-DH_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.10.129.110	Alpha Beta	Roll	Thiol Ester Dehydrase	Chain A	CATH (4.3.0)
A	3.10.129.110	Alpha Beta	Roll	Thiol Ester Dehydrase	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF21089	Polyketide synthase dehydratase domain (PKS_DH_N)	Polyketide synthase dehydratase domain	This domain is part of a dehydratase domain found in diverse PKS enzymes. This domain adopts a HotDog fold.	Domain
A, B	PF14765	Polyketide synthase dehydratase N-terminal domain (PS-DH)	Polyketide synthase dehydratase N-terminal domain	This entry represents the N-terminal HotDog domain of the dehydratase (DH) module of polyketide synthases [1]. Structural analysis shows these DH domains are double hotdogs in which the active site contains a histidine from the N-terminal hotdog and ...	This entry represents the N-terminal HotDog domain of the dehydratase (DH) module of polyketide synthases [1]. Structural analysis shows these DH domains are double hotdogs in which the active site contains a histidine from the N-terminal hotdog and an aspartate from the C-terminal hotdog. Studies have uncovered that a substrate tunnel formed between the DH domains may be essential for loading substrates and unloading products [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Rifamycin polyketide synthase	vitamin binding amide binding modified amino acid binding binding phosphopantetheine 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 fatty acid synthase activity	cellular component biogenesis cellular component organization peptidoglycan-based cell wall biogenesis cellular component assembly cell wall biogenesis DIM/DIP cell wall layer assembly cell wall organization or biogenesis cellular process Actinobacterium-type cell wall biogenesis cellular component organization or biogenesis fatty acid metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process oxoacid metabolic process cellular component biogenesis cellular component organization peptidoglycan-based cell wall biogenesis cellular component assembly cell wall biogenesis DIM/DIP cell wall layer assembly cell wall organization or biogenesis cellular process Actinobacterium-type cell wall biogenesis cellular component organization or biogenesis 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 biosynthetic process cellular lipid metabolic process small molecule metabolic process metabolic 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	cell periphery plasma membrane membrane cellular anatomical entity intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR016035	Acyl transferase/acyl hydrolase/lysophospholipase	Homologous Superfamily
A, B	IPR014031	Beta-ketoacyl synthase, C-terminal	Domain
A, B	IPR006162	Phosphopantetheine attachment site	PTM
A, B	IPR020807	Polyketide synthase, dehydratase domain	Domain
A, B	IPR049552	Polyketide synthase, dehydratase domain, N-terminal	Domain
A, B	IPR049551	Polyketide synthase, dehydratase domain, C-terminal	Domain
A, B	IPR013968	Polyketide synthase, ketoreductase domain	Domain
A, B	IPR016036	Malonyl-CoA ACP transacylase, ACP-binding	Homologous Superfamily
A, B	IPR050091	Polyketide and Nonribosomal Peptide Biosynthesis Enzymes	Family
A, B	IPR020806	Polyketide synthase, phosphopantetheine-binding domain	Domain
A, B	IPR020841	Polyketide synthase, beta-ketoacyl synthase domain	Domain
A, B	IPR036736	ACP-like superfamily	Homologous Superfamily
A, B	IPR014043	Acyl transferase domain	Domain
A, B	IPR015083	Polyketide synthase, docking domain	Domain
A, B	IPR032821	Polyketide synthase, C-terminal extension	Domain
A, B	IPR009081	Phosphopantetheine binding ACP domain	Domain
A, B	IPR016039	Thiolase-like	Homologous Superfamily
A, B	IPR001227	Acyl transferase domain superfamily	Homologous Superfamily
A, B	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B	IPR018201	Beta-ketoacyl synthase, active site	Active Site
A, B	IPR014030	Beta-ketoacyl synthase-like, N-terminal	Domain
A, B	IPR042104	Polyketide synthase, dehydratase domain superfamily	Homologous Superfamily
A, B	IPR049900	Polyketide/metazoan fatty acid synthase, dehydratase domain	Domain