Annotations: 1SF2

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1sf2a_	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	GABA-aminotransferase-like	4-aminobutyrate aminotransferase, GABA-aminotransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1sf2b_	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	GABA-aminotransferase-like	4-aminobutyrate aminotransferase, GABA-aminotransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1sf2c_	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	GABA-aminotransferase-like	4-aminobutyrate aminotransferase, GABA-aminotransferase	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
D	d1sf2d_	Alpha and beta proteins (a/b)	PLP-dependent transferase-like	PLP-dependent transferases	GABA-aminotransferase-like	4-aminobutyrate aminotransferase, GABA-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	PLP-dependent transferases	8039387	3000954	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	PLP-dependent transferases	8039387	3000954	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	PLP-dependent transferases	8039387	3000954	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	PLP-dependent transferases	8039387	3000954	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	Aminotran_3_C	e1sf2A3	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: Aminotran_3_C	ECOD (1.6)
A	Aminotran_3_N	e1sf2A2	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: Aminotran_3_N	ECOD (1.6)
B	Aminotran_3_C	e1sf2B3	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: Aminotran_3_C	ECOD (1.6)
B	Aminotran_3_N	e1sf2B2	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: Aminotran_3_N	ECOD (1.6)
C	Aminotran_3_C	e1sf2C3	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: Aminotran_3_C	ECOD (1.6)
C	Aminotran_3_N	e1sf2C2	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: Aminotran_3_N	ECOD (1.6)
D	Aminotran_3_C	e1sf2D3	A: a+b two layers	X: C-terminal domain in some PLP-dependent transferases (From Topology)	H: C-terminal domain in some PLP-dependent transferases (From Topology)	T: C-terminal domain in some PLP-dependent transferases	F: Aminotran_3_C	ECOD (1.6)
D	Aminotran_3_N	e1sf2D2	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: Aminotran_3_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.1150.10	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	Aspartate Aminotransferase, domain 1	CATH (4.3.0)
A	3.40.640.10	Alpha Beta	3-Layer(aba) Sandwich	Aspartate Aminotransferase	domain 2	CATH (4.3.0)
B	3.90.1150.10	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	Aspartate Aminotransferase, domain 1	CATH (4.3.0)
B	3.40.640.10	Alpha Beta	3-Layer(aba) Sandwich	Aspartate Aminotransferase	domain 2	CATH (4.3.0)
C	3.90.1150.10	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	Aspartate Aminotransferase, domain 1	CATH (4.3.0)
C	3.40.640.10	Alpha Beta	3-Layer(aba) Sandwich	Aspartate Aminotransferase	domain 2	CATH (4.3.0)
D	3.90.1150.10	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1	Aspartate Aminotransferase, domain 1	CATH (4.3.0)
D	3.40.640.10	Alpha Beta	3-Layer(aba) Sandwich	Aspartate Aminotransferase	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00202	Aminotransferase class-III (Aminotran_3)	Aminotransferase class-III	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	4-aminobutyrate aminotransferase	transferase activity, transferring nitrogenous groups 4-aminobutyrate:2-oxoglutarate transaminase activity transaminase activity transferase activity catalytic activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding transferase activity, transferring nitrogenous groups 4-aminobutyrate:2-oxoglutarate transaminase activity transaminase activity transferase activity catalytic activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding 5-aminovalerate transaminase activity N2-acetyl-L-ornithine:2-oxoglutarate 5-aminotransferase activity	ornithine metabolic process oxoacid metabolic process small molecule biosynthetic process cellular biosynthetic process cellular metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process arginine biosynthetic process via ornithine arginine metabolic process non-proteinogenic amino acid metabolic process ornithine metabolic process oxoacid metabolic process small molecule biosynthetic process cellular biosynthetic process cellular metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process arginine biosynthetic process via ornithine arginine metabolic process non-proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process metabolic process small molecule metabolic process cellular process alpha-amino acid biosynthetic process catabolic process gamma-aminobutyric acid metabolic process non-proteinogenic amino acid catabolic process organic acid catabolic process gamma-aminobutyric acid catabolic process cellular catabolic process carboxylic acid catabolic process monocarboxylic acid metabolic process small molecule catabolic process amino acid catabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR049704	Aminotransferases class-III pyridoxal-phosphate attachment site	Conserved Site
A, B, C, D	IPR050103	Class-III Pyridoxal-phosphate-dependent Aminotransferase	Family
A, B, C, D	IPR015421	Pyridoxal phosphate-dependent transferase, major domain	Homologous Superfamily
A, B, C, D	IPR015422	Pyridoxal phosphate-dependent transferase, small domain	Homologous Superfamily
A, B, C, D	IPR015424	Pyridoxal phosphate-dependent transferase	Homologous Superfamily
A, B, C, D	IPR005814	Aminotransferase class-III	Family
A, B, C, D	IPR004632	4-aminobutyrate aminotransferase, bacterial	Family

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.