1QDL

THE CRYSTAL STRUCTURE OF ANTHRANILATE SYNTHASE FROM SULFOLOBUS SOLFATARICUS

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
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1qdla_	Alpha and beta proteins (a+b)	ADC synthase	ADC synthase	ADC synthase	Anthranilate synthase aminodeoxyisochorismate synthase/lyase subunit, TrpE	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
B	d1qdlb_	Alpha and beta proteins (a/b)	Flavodoxin-like	Class I glutamine amidotransferase-like	Class I glutamine amidotransferases (GAT)	Anthranilate synthase GAT subunit, TrpG	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	ADC synthase	8024523	4002317	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	ADC synthase	8036902	3001093	SCOP2 (2022-06-29)
B	SCOP2 Family	Class I glutamine amidotransferases (GAT)	8031778	4003747	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Class I glutamine amidotransferase-like	8044156	3001405	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	Chorismate_bind	e1qdlA1	A: a+b duplicates or obligate multimers	X: ADC synthase (From Topology)	H: ADC synthase (From Topology)	T: ADC synthase	F: Chorismate_bind	ECOD (1.6)
B	GATase	e1qdlB1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Class I glutamine amidotransferase-like	F: GATase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.60.120.10	Alpha Beta	4-Layer Sandwich	Anthranilate synthase	Anthranilate synthase	CATH (4.3.0)
B	3.40.50.880	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Class I glutamine amidotransferase (GATase) domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00425	chorismate binding enzyme (Chorismate_bind)	chorismate binding enzyme	-	Family
A	PF04715	Anthranilate synthase component I, N terminal region (Anth_synt_I_N)	Anthranilate synthase component I, N terminal region	-	Family
B	PF00117	Glutamine amidotransferase class-I (GATase)	Glutamine amidotransferase class-I	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (ANTHRANILATE SYNTHASE (TRPE-SUBUNIT))	cation binding ion binding binding metal ion binding small molecule binding oxo-acid-lyase activity lyase activity anthranilate synthase activity catalytic activity carbon-carbon lyase activity	oxoacid metabolic process cellular biosynthetic 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 tryptophan biosynthetic process indole-containing compound biosynthetic process indolalkylamine metabolic process small molecule metabolic process indolalkylamine biosynthetic process oxoacid metabolic process cellular biosynthetic 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 tryptophan biosynthetic process indole-containing compound biosynthetic process indolalkylamine metabolic process small molecule metabolic process indolalkylamine biosynthetic process aromatic amino acid family biosynthetic process aromatic amino acid metabolic process small molecule biosynthetic process cellular metabolic process carboxylic acid metabolic process primary metabolic process amine metabolic process amino acid biosynthetic process biosynthetic process amine biosynthetic process metabolic process cellular process biogenic amine metabolic process alpha-amino acid biosynthetic process	-
B	PROTEIN (ANTHRANILATE SYNTHASE (TRPG-SUBUNIT))	oxo-acid-lyase activity lyase activity anthranilate synthase activity catalytic activity carbon-carbon lyase activity	oxoacid metabolic process cellular biosynthetic 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 tryptophan biosynthetic process indole-containing compound biosynthetic process indolalkylamine metabolic process small molecule metabolic process indolalkylamine biosynthetic process oxoacid metabolic process cellular biosynthetic 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 tryptophan biosynthetic process indole-containing compound biosynthetic process indolalkylamine metabolic process small molecule metabolic process indolalkylamine biosynthetic process aromatic amino acid family biosynthetic process aromatic amino acid metabolic process small molecule biosynthetic process cellular metabolic process carboxylic acid metabolic process primary metabolic process amine metabolic process amino acid biosynthetic process biosynthetic process amine biosynthetic process metabolic process cellular process biogenic amine metabolic process alpha-amino acid biosynthetic process glutamine metabolic process L-amino acid metabolic process glutamine family amino acid metabolic process proteinogenic amino acid metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR019999	Anthranilate synthase component I-like	Family
A	IPR015890	Chorismate-utilising enzyme, C-terminal	Domain
A	IPR006805	Anthranilate synthase component I, N-terminal	Domain
A	IPR005801	ADC synthase	Homologous Superfamily
A	IPR010116	Anthranilate synthase component I, archaeal type	Family
B	IPR029062	Class I glutamine amidotransferase-like	Homologous Superfamily
B	IPR017926	Glutamine amidotransferase	Domain
B	IPR006221	Anthranilate synthase/para-aminobenzoate synthase like domain	Domain
B	IPR050472	Anthranilate Synthase/Amidotransferase	Family

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

Chains	Enzyme Name	Description	Catalytic Residues
A, B	anthranilate synthase M-CSA #314	Anthranilate synthase catalyses the initial reaction in tryptophan biosynthesis in microorganisms and plants. This enzyme is one of a family of glutamine amidotransferases, enzymes that utilise the amide of glutamine in the biosynthesis of amino acids, nucleotides, coenzymes, and an amino sugar. Glutamine amidotransferases thus exert major role in utilisation of assimilated nitrogen. Anthranilate synthase is the most thoroughly characterised glutamine amidotransferase. The enzyme from Serratia marcescens is a heterotetramer of anthranilate synthase (TrpE) and glutamine amidotransferase (TrpG) subunits both of which are required for function.	Defined by 10 residues: HIS:A-307 [auth A-306]THR:A-334 [auth A-333]TYR:A-358 [auth A-357]ARG:A-378 [auth A-377]GLY:A-394 [auth A-393]GLY:B-56CYS:B-84LEU:B-85HIS:B-175GLU:B-177 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 4.1.3.27 (PDB Primary Data) Search M-CSA Motif + EC 4.1.3.27

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.