6LKZ | pdb_00006lkz

Crystal structure of isocitrate dehydrogenase 1 from Phaeodactylum tricornutum

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 [auth D]	SCOP2B Superfamily	Isocitrate/Isopropylmalate dehydrogenase-like	8103308	3001375	SCOP2B (2022-06-29)
A [auth C]	SCOP2 Family	Dimeric isocitrate & isopropylmalate dehydrogenases	8103307	4000791	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Superfamily	Isocitrate/Isopropylmalate dehydrogenase-like	8103308	3001375	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 [auth D]	EF-hand_7_8	e6lkzD3	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_8	ECOD (1.6)
B [auth D]	Iso_dh	e6lkzD2	A: a/b three-layered sandwiches	X: Isocitrate/Isopropylmalate dehydrogenase-like (From Topology)	H: Isocitrate/Isopropylmalate dehydrogenase-like (From Topology)	T: Isocitrate/Isopropylmalate dehydrogenase-like	F: Iso_dh	ECOD (1.6)
A [auth C]	EF-hand_7_8	e6lkzC3	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_8	ECOD (1.6)
A [auth C]	Iso_dh	e6lkzC2	A: a/b three-layered sandwiches	X: Isocitrate/Isopropylmalate dehydrogenase-like (From Topology)	H: Isocitrate/Isopropylmalate dehydrogenase-like (From Topology)	T: Isocitrate/Isopropylmalate dehydrogenase-like	F: Iso_dh	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth D]	3.40.718.10	Alpha Beta	3-Layer(aba) Sandwich	Isopropylmalate Dehydrogenase	Isopropylmalate Dehydrogenase	CATH (utative)
A [auth C]	3.40.718.10	Alpha Beta	3-Layer(aba) Sandwich	Isopropylmalate Dehydrogenase	Isopropylmalate Dehydrogenase	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C], B [auth D]	PF00180	Isocitrate/isopropylmalate dehydrogenase (Iso_dh)	Isocitrate/isopropylmalate dehydrogenase		Domain
A [auth C], B [auth D]	PF00036	EF hand domain (EF-hand_1)	EF hand domain	The EF-hands can be divided into two classes: signalling proteins and buffering/transport proteins. The first group is the largest and includes the most well-known members of the family such as calmodulin, troponin C and S100B. These proteins typica ...	The EF-hands can be divided into two classes: signalling proteins and buffering/transport proteins. The first group is the largest and includes the most well-known members of the family such as calmodulin, troponin C and S100B. These proteins typically undergo a calcium-dependent conformational change which opens a target binding site. The latter group is represented by calbindin D9k and do not undergo calcium dependent conformational changes.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C], B [auth D]	isocitrate dehydrogenase	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding calcium ion binding identical protein binding protein binding protein homodimerization activity protein dimerization activity isocitrate dehydrogenase [NAD(P)+] activity oxidoreductase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding calcium ion binding identical protein binding protein binding protein homodimerization activity protein dimerization activity isocitrate dehydrogenase [NAD(P)+] activity oxidoreductase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor isocitrate dehydrogenase (NAD+) activity oxidoreductase activity, acting on CH-OH group of donors catalytic activity isocitrate dehydrogenase (NADP+) activity	aerobic respiration cellular respiration tricarboxylic acid cycle energy derivation by oxidation of organic compounds primary metabolic process metabolic process cellular process generation of precursor metabolites and energy secondary alcohol metabolic process isocitrate metabolic process tricarboxylic acid metabolic process oxoacid metabolic process carboxylic acid metabolic process small molecule metabolic process aerobic respiration cellular respiration tricarboxylic acid cycle energy derivation by oxidation of organic compounds primary metabolic process metabolic process cellular process generation of precursor metabolites and energy secondary alcohol metabolic process isocitrate metabolic process tricarboxylic acid metabolic process oxoacid metabolic process carboxylic acid metabolic process small molecule metabolic process alcohol metabolic process organic acid metabolic process nucleoside phosphate metabolic process nicotinamide nucleotide metabolic process nucleotide metabolic process purine-containing compound metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process pyridine-containing compound metabolic process phosphorus metabolic process NAD+ metabolic process NADP+ metabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C], B [auth D]	IPR004790	Isocitrate dehydrogenase NADP-dependent	Family
A [auth C], B [auth D]	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A [auth C], B [auth D]	IPR024084	Isopropylmalate dehydrogenase-like domain	Domain
A [auth C], B [auth D]	IPR002048	EF-hand domain	Domain
A [auth C], B [auth D]	IPR011992	EF-hand domain pair	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.