Annotations: 4QYS

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth A]	SCOP2B Superfamily	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8100426	3001427	SCOP2B (2022-06-29)
A [auth B]	SCOP2 Family	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8100425	4000798	SCOP2 (2022-06-29)
A [auth B]	SCOP2 Superfamily	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8100426	3001427	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 A]		e4qysA1	A: alpha bundles	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F:	ECOD (develop294)
A [auth B]		e4qysB1	A: alpha bundles	X: cradle loop barrel	H: RIFT-related	T: acid protease	F:	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth A]	3.40.50.1100	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
A [auth B]	3.40.50.1100	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth A]	PF00291	Pyridoxal-phosphate dependent enzyme (PALP)	Pyridoxal-phosphate dependent enzyme	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth A]	Tryptophan synthase beta chain 2	hydro-lyase activity lyase activity catalytic activity carbon-oxygen lyase activity tryptophan synthase activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding anion binding heterocyclic compound binding small molecule binding L-serine hydro-lyase (adding indole, L-tryptophan-forming) activity	oxoacid metabolic process indole-containing compound metabolic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process biogenic amine biosynthetic process indole-containing compound biosynthetic process L-tryptophan metabolic process small molecule metabolic process indolalkylamine biosynthetic process aromatic amino acid family biosynthetic process aromatic amino acid metabolic process oxoacid metabolic process indole-containing compound metabolic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process biogenic amine biosynthetic process indole-containing compound biosynthetic process L-tryptophan metabolic process small molecule metabolic process indolalkylamine biosynthetic process aromatic amino acid family biosynthetic process aromatic amino acid metabolic process small molecule biosynthetic process carboxylic acid metabolic process primary metabolic process L-amino acid biosynthetic process L-amino acid metabolic process L-tryptophan biosynthetic process proteinogenic amino acid metabolic process amine metabolic process amino acid biosynthetic process biosynthetic process amine biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process erythrose 4-phosphate/phosphoenolpyruvate family amino acid biosynthetic process biogenic amine metabolic process alpha-amino acid biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A]	IPR023026	Tryptophan synthase beta chain/beta chain-like	Family
A [auth B], B [auth A]	IPR036052	Tryptophan synthase beta chain-like, PALP domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR006653	Tryptophan synthase, beta chain, conserved site	Conserved Site
A [auth B], B [auth A]	IPR001926	Tryptophan synthase beta chain-like, PALP domain	Domain
A [auth B], B [auth A]	IPR006654	Tryptophan synthase, beta chain	Family
A [auth B], B [auth A]	IPR006316	Tryptophan synthase, beta chain-like	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.