Annotations: 1IYD

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1iyda_	Multi-domain proteins (alpha and beta)	D-aminoacid aminotransferase-like PLP-dependent enzymes	D-aminoacid aminotransferase-like PLP-dependent enzymes	D-aminoacid aminotransferase-like PLP-dependent enzymes	Branched-chain aminoacid aminotransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1iydc_	Multi-domain proteins (alpha and beta)	D-aminoacid aminotransferase-like PLP-dependent enzymes	D-aminoacid aminotransferase-like PLP-dependent enzymes	D-aminoacid aminotransferase-like PLP-dependent enzymes	Branched-chain aminoacid aminotransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1iydb_	Multi-domain proteins (alpha and beta)	D-aminoacid aminotransferase-like PLP-dependent enzymes	D-aminoacid aminotransferase-like PLP-dependent enzymes	D-aminoacid aminotransferase-like PLP-dependent enzymes	Branched-chain aminoacid aminotransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	D-aminoacid aminotransferase-like PLP-dependent enzymes	8032201	3001836	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	D-aminoacid aminotransferase-like PLP-dependent enzymes	8032201	3001836	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	D-aminoacid aminotransferase-like PLP-dependent enzymes	8032201	3001836	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	PF01063	e1iydA2	A: a+b two layers	X: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	H: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	T: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes	F: PF01063	ECOD (1.6)
A	PF01063	e1iydA1	A: a+b two layers	X: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	H: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	T: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes	F: PF01063	ECOD (1.6)
C	PF01063	e1iydC2	A: a+b two layers	X: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	H: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	T: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes	F: PF01063	ECOD (1.6)
C	PF01063	e1iydC1	A: a+b two layers	X: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	H: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	T: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes	F: PF01063	ECOD (1.6)
B	PF01063	e1iydB2	A: a+b two layers	X: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	H: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	T: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes	F: PF01063	ECOD (1.6)
B	PF01063	e1iydB1	A: a+b two layers	X: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	H: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)	T: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes	F: PF01063	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.470.10	Alpha Beta	2-Layer Sandwich	D-amino Acid Aminotransferase	Chain A, domain 1	CATH (4.3.0)
A	3.20.10.10	Alpha Beta	Alpha-Beta Barrel	D-amino Acid Aminotransferase	Chain A, domain 2	CATH (4.3.0)
C	3.30.470.10	Alpha Beta	2-Layer Sandwich	D-amino Acid Aminotransferase	Chain A, domain 1	CATH (4.3.0)
C	3.20.10.10	Alpha Beta	Alpha-Beta Barrel	D-amino Acid Aminotransferase	Chain A, domain 2	CATH (4.3.0)
B	3.30.470.10	Alpha Beta	2-Layer Sandwich	D-amino Acid Aminotransferase	Chain A, domain 1	CATH (4.3.0)
B	3.20.10.10	Alpha Beta	Alpha-Beta Barrel	D-amino Acid Aminotransferase	Chain A, domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF01063	Amino-transferase class IV (Aminotran_4)	Amino-transferase class IV	The D-amino acid transferases (D-AAT) are required by bacteria to catalyse the synthesis of D-glutamic acid and D-alanine, which are essential constituents of bacterial cell wall and are the building block for other D-amino acids. Despite the diff ...	The D-amino acid transferases (D-AAT) are required by bacteria to catalyse the synthesis of D-glutamic acid and D-alanine, which are essential constituents of bacterial cell wall and are the building block for other D-amino acids. Despite the difference in the structure of the substrates, D-AATs and L-ATTs have strong similarity.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASE	transferase activity, transferring nitrogenous groups branched-chain-amino-acid transaminase activity transaminase activity L-leucine transaminase activity transferase activity catalytic activity L-valine transaminase activity L-isoleucine transaminase activity L-leucine:2-oxoglutarate aminotransferase activity identical protein binding protein binding binding	oxoacid metabolic process cellular biosynthetic process aspartate family amino acid biosynthetic process organonitrogen compound biosynthetic process aspartate family amino acid metabolic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process aspartate biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process organic substance metabolic process organic substance biosynthetic process small molecule metabolic process oxoacid metabolic process cellular biosynthetic process aspartate family amino acid biosynthetic process organonitrogen compound biosynthetic process aspartate family amino acid metabolic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process aspartate biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process organic substance metabolic process organic substance biosynthetic process small molecule metabolic process aspartate metabolic process dicarboxylic acid biosynthetic process organonitrogen compound metabolic process small molecule biosynthetic process cellular metabolic process dicarboxylic acid metabolic 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 proteinogenic amino acid biosynthetic process metabolic process cellular process alpha-amino acid biosynthetic process isoleucine biosynthetic process branched-chain amino acid metabolic process branched-chain amino acid biosynthetic process isoleucine metabolic process pyruvate family amino acid metabolic process pyruvate family amino acid biosynthetic process L-leucine metabolic process L-leucine 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	IPR005785	Branched-chain amino acid aminotransferase I	Family
A, B, C	IPR036038	Aminotransferase-like, PLP-dependent enzymes	Homologous Superfamily
A, B, C	IPR018300	Aminotransferase, class IV, conserved site	Conserved Site
A, B, C	IPR043132	Branched-chain-amino-acid aminotransferase-like, C-terminal	Homologous Superfamily
A, B, C	IPR043131	Branched-chain-amino-acid aminotransferase-like, N-terminal	Homologous Superfamily
A, B, C	IPR001544	Aminotransferase class IV	Family
A, B, C	IPR033939	Branched-chain aminotransferase	Family

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	branched-chain-amino-acid transaminase M-CSA #813	Branched-chain amino acid aminotransferase is involved in the biosynthesis of hydrophobic amino acids ie leucine, isoleucine, valine. The enzyme reversibly catalyses the transfer of the amino group of a hydrophobic amino acide to 2-oxoglutarate to form a 2-oxo acid and a glutamate. This enzyme is a pyridoxal 5'-phosphate-dependent enzyme.	Defined by 1 residue: LYS:A-160 [auth A-159] \| Explore in 3D: M-CSA Motif Definition At least 2 residues must be present to support Structure Motif searching. EC: 2.6.1.42 (PDB Primary Data)

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 R01GM133198.