1NP3

Crystal structure of class I acetohydroxy acid isomeroreductase from Pseudomonas aeruginosa

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
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: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1np3a1	All alpha proteins	6-phosphogluconate dehydrogenase C-terminal domain-like	6-phosphogluconate dehydrogenase C-terminal domain-like	Acetohydroxy acid isomeroreductase (ketol-acid reductoisomerase, KARI)	Class I ketol-acid reductoisomerase	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
A	d1np3a2	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	6-phosphogluconate dehydrogenase-like, N-terminal domain	Class I ketol-acid reductoisomerase (KARI)	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
B	d1np3b1	All alpha proteins	6-phosphogluconate dehydrogenase C-terminal domain-like	6-phosphogluconate dehydrogenase C-terminal domain-like	Acetohydroxy acid isomeroreductase (ketol-acid reductoisomerase, KARI)	Class I ketol-acid reductoisomerase	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
B	d1np3b2	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	6-phosphogluconate dehydrogenase-like, N-terminal domain	Class I ketol-acid reductoisomerase (KARI)	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
C	d1np3c1	All alpha proteins	6-phosphogluconate dehydrogenase C-terminal domain-like	6-phosphogluconate dehydrogenase C-terminal domain-like	Acetohydroxy acid isomeroreductase (ketol-acid reductoisomerase, KARI)	Class I ketol-acid reductoisomerase	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
C	d1np3c2	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	6-phosphogluconate dehydrogenase-like, N-terminal domain	Class I ketol-acid reductoisomerase (KARI)	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
D	d1np3d1	All alpha proteins	6-phosphogluconate dehydrogenase C-terminal domain-like	6-phosphogluconate dehydrogenase C-terminal domain-like	Acetohydroxy acid isomeroreductase (ketol-acid reductoisomerase, KARI)	Class I ketol-acid reductoisomerase	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
D	d1np3d2	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	6-phosphogluconate dehydrogenase-like, N-terminal domain	Class I ketol-acid reductoisomerase (KARI)	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Ketol-acid reductoisomerase (KARI)-like	8001123	4000106	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	6-phosphogluconate dehydrogenase-like	8001124	3000048	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	6-phosphogluconate dehydrogenase-like	8001124	3000048	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	6-phosphogluconate dehydrogenase-like	8001124	3000048	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	6-phosphogluconate dehydrogenase-like	8001124	3000048	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)
A	IlvC	e1np3A1	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: IlvC	ECOD (1.6)
A	IlvN	e1np3A2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: IlvN	ECOD (1.6)
B	IlvC	e1np3B1	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: IlvC	ECOD (1.6)
B	IlvN	e1np3B2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: IlvN	ECOD (1.6)
C	IlvC	e1np3C1	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: IlvC	ECOD (1.6)
C	IlvN	e1np3C2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: IlvN	ECOD (1.6)
D	IlvC	e1np3D1	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: IlvC	ECOD (1.6)
D	IlvN	e1np3D2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: IlvN	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	6.10.240.10	Special	Helix non-globular	ProC C-terminal domain-like fold		CATH (4.3.0)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
B	6.10.240.10	Special	Helix non-globular	ProC C-terminal domain-like fold		CATH (4.3.0)
C	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
C	6.10.240.10	Special	Helix non-globular	ProC C-terminal domain-like fold		CATH (4.3.0)
D	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
D	6.10.240.10	Special	Helix non-globular	ProC C-terminal domain-like fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF07991	Acetohydroxy acid isomeroreductase, NADPH-binding domain (IlvN)	Acetohydroxy acid isomeroreductase, NADPH-binding domain	-	Family
A, B, C, D	PF01450	Acetohydroxy acid isomeroreductase, catalytic domain (IlvC)	Acetohydroxy acid isomeroreductase, catalytic domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Ketol-acid reductoisomerase	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding NADP binding oxidoreductase activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding NADP 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 ketol-acid reductoisomerase activity catalytic activity	oxoacid metabolic process cellular biosynthetic process organonitrogen compound biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process organic substance metabolic process isoleucine biosynthetic process organic substance biosynthetic process nitrogen compound metabolic process small molecule metabolic process branched-chain amino acid metabolic process oxoacid metabolic process cellular biosynthetic process organonitrogen compound biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process organic substance metabolic process isoleucine biosynthetic process organic substance biosynthetic process nitrogen compound metabolic process small molecule metabolic process branched-chain amino acid metabolic process organonitrogen compound metabolic process small molecule biosynthetic process cellular metabolic process carboxylic acid metabolic process primary metabolic process amino acid biosynthetic process biosynthetic process branched-chain amino acid biosynthetic process metabolic process cellular process isoleucine metabolic process alpha-amino acid biosynthetic process valine biosynthetic process valine metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR013023	Ketol-acid reductoisomerase	Family
A, B, C, D	IPR014359	Ketol-acid reductoisomerase, prokaryotic	Family
A, B, C, D	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B, C, D	IPR000506	Ketol-acid reductoisomerase, C-terminal	Domain
A, B, C, D	IPR013116	Ketol-acid reductoisomerase, N-terminal	Domain
A, B, C, D	IPR008927	6-phosphogluconate dehydrogenase-like, C-terminal domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.