1GEQ

Entropic stabilization of the tryptophan synthase A-subunit from a hyperthermophile, pyrococcus furiosus: X-ray analysis and calorimetry

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1geqa_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Ribulose-phoshate binding barrel	Tryptophan biosynthesis enzymes	Trp synthase alpha-subunit	(Pyrococcus furiosus ) [TaxId: 2261 ],	SCOPe (2.08)
B	d1geqb_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Ribulose-phoshate binding barrel	Tryptophan biosynthesis enzymes	Trp synthase alpha-subunit	(Pyrococcus furiosus ) [TaxId: 2261 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Ribulose-phoshate binding barrel	8043261	3000216	SCOP2B (2022-06-29)
B	SCOP2 Family	Tryptophan biosynthesis enzymes	8030882	4003071	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Ribulose-phoshate binding barrel	8043261	3000216	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)
A	Trp_syntA	e1geqA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Trp_syntA	ECOD (1.6)
B	Trp_syntA	e1geqB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Trp_syntA	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	CATH (4.3.0)
B	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00290	Tryptophan synthase alpha chain (Trp_syntA)	Tryptophan synthase alpha chain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	TRYPTOPHAN SYNTHASE ALPHA-SUBUNIT	hydro-lyase activity lyase activity catalytic activity carbon-oxygen lyase activity tryptophan synthase activity	erythrose 4-phosphate/phosphoenolpyruvate family amino acid metabolic process aromatic amino acid metabolic process oxoacid metabolic process carboxylic acid metabolic process indole-containing compound metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process alpha-amino acid metabolic process tryptophan metabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process amine metabolic process indolalkylamine metabolic process erythrose 4-phosphate/phosphoenolpyruvate family amino acid metabolic process aromatic amino acid metabolic process oxoacid metabolic process carboxylic acid metabolic process indole-containing compound metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process alpha-amino acid metabolic process tryptophan metabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process amine metabolic process indolalkylamine metabolic process metabolic process cellular process small molecule metabolic process biogenic amine metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002028	Tryptophan synthase, alpha chain	Family
A, B	IPR011060	Ribulose-phosphate binding barrel	Homologous Superfamily
A, B	IPR018204	Tryptophan synthase, alpha chain, active site	Active Site
A, B	IPR013785	Aldolase-type TIM barrel	Homologous Superfamily

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.