Annotations: 3F6G

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth B]	LeuA_dimer	e3f6gB1	A: a+b two layers	X: dsRBD-like	H: 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain (From Topology)	T: 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain	F: LeuA_dimer	ECOD (1.6)
B [auth A]	LeuA_dimer	e3f6gA1	A: a+b two layers	X: dsRBD-like	H: 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain (From Topology)	T: 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain	F: LeuA_dimer	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth B]	3.30.160.740	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain		CATH (4.3.0)
A [auth B]	3.30.160.340	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain		CATH (4.3.0)
B [auth A]	3.30.160.740	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain		CATH (4.3.0)
B [auth A]	3.30.160.340	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth A]	PF08502	LeuA allosteric (dimerisation) domain (LeuA_dimer)	LeuA allosteric (dimerisation) domain	This is the C-terminal regulatory (R) domain of alpha-isopropylmalate synthase, which catalyses the first committed step in the leucine biosynthetic pathway [1]. This domain, is an internally duplicated structure with a novel fold [1]. It comprises t ...	This is the C-terminal regulatory (R) domain of alpha-isopropylmalate synthase, which catalyses the first committed step in the leucine biosynthetic pathway [1]. This domain, is an internally duplicated structure with a novel fold [1]. It comprises two similar units that are arranged such that the two -helices pack together in the centre, crossing at an angle of 34 degrees, sandwiched between the two three-stranded, antiparallel beta-sheets. The overall domain is thus constructed as a beta-alpha-beta three-layer sandwich [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth A]	Alpha-isopropylmalate synthase	2-isopropylmalate synthase activity acyltransferase activity acyltransferase activity, acyl groups converted into alkyl on transfer transferase activity catalytic activity (R)-citramalate synthase activity acyltransferase activity, transferring groups other than amino-acyl groups lyase activity cation binding ion binding binding metal ion binding small molecule binding	pyruvate family amino acid metabolic process oxoacid metabolic process pyruvate family amino acid biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process branched-chain amino acid metabolic process L-leucine metabolic process L-leucine biosynthetic process small molecule biosynthetic process carboxylic acid metabolic process pyruvate family amino acid metabolic process oxoacid metabolic process pyruvate family amino acid biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process branched-chain amino acid metabolic process L-leucine metabolic process L-leucine biosynthetic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process branched-chain amino acid biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process alpha-amino acid biosynthetic process isoleucine biosynthetic process isoleucine metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A]	IPR050073	2-IPM synthase/homocitrate synthase-like	Family
A [auth B], B [auth A]	IPR036230	2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR013785	Aldolase-type TIM barrel	Homologous Superfamily
A [auth B], B [auth A]	IPR000891	Pyruvate carboxyltransferase	Domain
A [auth B], B [auth A]	IPR013709	2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain	Domain
A [auth B], B [auth A]	IPR054907	(R)-citramalate synthase	Family
A [auth B], B [auth A]	IPR002034	Alpha-isopropylmalate/homocitrate synthase, conserved site	Conserved Site
A [auth B], B [auth A]	IPR054691	2-isopropylmalate synthase/homocitrate synthase, post-catalytic domain	Domain

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.