5ZIX | pdb_00005zix

Crystal structure of Ketopantoate reductase from Pseudomonas aeruginosa bound to NADP+

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
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	ApbA_C	e5zixA2	A: alpha arrays	X: 6-phosphogluconate dehydrogenase C-terminal domain-like (From Topology)	H: 6-phosphogluconate dehydrogenase C-terminal domain-like (From Topology)	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: ApbA_C	ECOD (1.6)
A	ApbA	e5zixA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: ApbA	ECOD (1.6)
B	ApbA_C	e5zixB1	A: alpha arrays	X: 6-phosphogluconate dehydrogenase C-terminal domain-like (From Topology)	H: 6-phosphogluconate dehydrogenase C-terminal domain-like (From Topology)	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: ApbA_C	ECOD (1.6)
B	ApbA	e5zixB2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: ApbA	ECOD (1.6)
C	ApbA_C	e5zixC1	A: alpha arrays	X: 6-phosphogluconate dehydrogenase C-terminal domain-like (From Topology)	H: 6-phosphogluconate dehydrogenase C-terminal domain-like (From Topology)	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: ApbA_C	ECOD (1.6)
C	ApbA	e5zixC2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: ApbA	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.1040.10	Mainly Alpha	Orthogonal Bundle	N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase	domain 2	CATH (4.3.0)
B	1.10.1040.10	Mainly Alpha	Orthogonal Bundle	N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase	domain 2	CATH (4.3.0)
C	1.10.1040.10	Mainly Alpha	Orthogonal Bundle	N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF02558	Ketopantoate reductase PanE/ApbA (ApbA)	Ketopantoate reductase PanE/ApbA	This is a family of 2-dehydropantoate 2-reductases also known as ketopantoate reductases, EC:1.1.1.169. The reaction catalysed by this enzyme is: (R)-pantoate + NADP(+) <=> 2-dehydropantoate + NADPH. AbpA catalyses the NADPH reduction of ketopanto ...	This is a family of 2-dehydropantoate 2-reductases also known as ketopantoate reductases, EC:1.1.1.169. The reaction catalysed by this enzyme is: (R)-pantoate + NADP(+) <=> 2-dehydropantoate + NADPH. AbpA catalyses the NADPH reduction of ketopantoic acid to pantoic acid in the alternative pyrimidine biosynthetic (APB) pathway [2]. ApbA and PanE are allelic [2]. ApbA, the ketopantoate reductase enzyme is required for the synthesis of thiamine via the APB biosynthetic pathway [1].	Domain
A, B, C	PF08546	Ketopantoate reductase PanE/ApbA C terminal (ApbA_C)	Ketopantoate reductase PanE/ApbA C terminal	This is a family of 2-dehydropantoate 2-reductases also known as ketopantoate reductases, EC:1.1.1.169. The reaction catalysed by this enzyme is: (R)-pantoate + NADP(+) <=> 2-dehydropantoate + NADPH. AbpA catalyses the NADPH reduction of ketopantoi ...	This is a family of 2-dehydropantoate 2-reductases also known as ketopantoate reductases, EC:1.1.1.169. The reaction catalysed by this enzyme is: (R)-pantoate + NADP(+) <=> 2-dehydropantoate + NADPH. AbpA catalyses the NADPH reduction of ketopantoic acid to pantoic acid in the alternative pyrimidine biosynthetic (APB) pathway [2]. ApbA and PanE are allelic [2]. ApbA, the ketopantoate reductase enzyme is required for the synthesis of thiamine via the APB biosynthetic pathway [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Probable 2-dehydropantoate 2-reductase	binding nucleoside phosphate binding purine nucleotide binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding NADP binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor oxidoreductase activity, acting on CH-OH group of donors 2-dehydropantoate 2-reductase activity catalytic activity	pantothenate metabolic process water-soluble vitamin biosynthetic process monocarboxylic acid biosynthetic process small molecule biosynthetic process oxoacid metabolic process modified amino acid biosynthetic process carboxylic acid metabolic process modified amino acid metabolic process vitamin biosynthetic process amide biosynthetic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process vitamin metabolic process biosynthetic process pantothenate metabolic process water-soluble vitamin biosynthetic process monocarboxylic acid biosynthetic process small molecule biosynthetic process oxoacid metabolic process modified amino acid biosynthetic process carboxylic acid metabolic process modified amino acid metabolic process vitamin biosynthetic process amide biosynthetic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process vitamin metabolic process biosynthetic process pantothenate biosynthetic process metabolic process cellular process small molecule metabolic process amide metabolic process monocarboxylic acid metabolic process water-soluble vitamin metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR003710	Ketopantoate reductase ApbA/PanE	Family
A, B, C	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B, C	IPR013328	6-phosphogluconate dehydrogenase, domain 2	Homologous Superfamily
A, B, C	IPR013752	Ketopantoate reductase, C-terminal domain	Domain
A, B, C	IPR013332	Ketopantoate reductase, N-terminal domain	Domain
A, B, C	IPR050838	Ketopantoate reductase	Family
A, B, C	IPR008927	6-phosphogluconate dehydrogenase-like, C-terminal domain 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 R01GM157729.