Annotations: 3A9Y

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Cystathionine synthase-like	8074683	4000672	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PLP-dependent transferases	8074684	3000954	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	PLP-dependent transferases	8074684	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_5_C	e3a9yA3	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_5_C	ECOD (1.6)
A	Aminotran_5_N	e3a9yA2	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: Aminotran_5_N	ECOD (1.6)
B	Aminotran_5_C	e3a9yB3	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_5_C	ECOD (1.6)
B	Aminotran_5_N	e3a9yB2	A: a/b three-layered sandwiches	X: PLP-dependent transferases (From Topology)	H: PLP-dependent transferases (From Topology)	T: PLP-dependent transferases	F: Aminotran_5_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	1.10.260.50	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)		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	1.10.260.50	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)		CATH (4.3.0)
B	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	PF00266	Aminotransferase class-V (Aminotran_5)	Aminotransferase class-V	This domain is found in amino transferases, and other enzymes including cysteine desulphurase EC:4.4.1.-.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Selenocysteine lyase	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity carbon-sulfur lyase activity lyase activity catalytic activity selenocysteine lyase activity vitamin binding vitamin B6 binding organic cyclic compound binding heterocyclic compound binding small molecule binding identical protein binding protein binding binding protein homodimerization activity protein dimerization activity carbon-sulfur lyase activity lyase activity catalytic activity selenocysteine lyase activity vitamin binding vitamin B6 binding organic cyclic compound binding heterocyclic compound binding small molecule binding amino acid binding transferase activity	response to stimulus response to hormone response to chemical response to endogenous stimulus response to peptide hormone response to insulin response to oxygen-containing compound response to nitrogen compound selenium compound metabolic process cellular metabolic process metabolic process cellular process catabolic process serine family amino acid metabolic process response to stimulus response to hormone response to chemical response to endogenous stimulus response to peptide hormone response to insulin response to oxygen-containing compound response to nitrogen compound selenium compound metabolic process cellular metabolic process metabolic process cellular process catabolic process serine family amino acid metabolic process oxoacid metabolic process amino acid metabolic process organic acid catabolic process organic acid metabolic process selenocysteine catabolic process alpha-amino acid metabolic process cellular catabolic process carboxylic acid catabolic process small molecule metabolic process amino acid catabolic process L-amino acid catabolic process carboxylic acid metabolic process primary metabolic process L-amino acid metabolic process serine family amino acid catabolic process proteinogenic amino acid metabolic process selenocysteine metabolic process alpha-amino acid catabolic process proteinogenic amino acid catabolic process small molecule catabolic process lipid metabolic process cellular response to stimulus regulation of cellular process cellular response to oxidative stress regulation of cellular response to stress negative regulation of biological process cellular response to chemical stress regulation of cellular response to oxidative stress cellular response to stress response to stress regulation of response to stress regulation of response to oxidative stress negative regulation of cellular process negative regulation of response to oxidative stress negative regulation of cellular response to oxidative stress regulation of biological process negative regulation of response to stimulus biological regulation response to oxidative stress cellular response to chemical stimulus regulation of response to stimulus	membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle endomembrane system cytosol protein-containing complex catalytic complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR016454	Cysteine desulfurase	Family
A, B	IPR015421	Pyridoxal phosphate-dependent transferase, major domain	Homologous Superfamily
A, B	IPR015422	Pyridoxal phosphate-dependent transferase, small domain	Homologous Superfamily
A, B	IPR015424	Pyridoxal phosphate-dependent transferase	Homologous Superfamily
A, B	IPR000192	Aminotransferase class V 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.