Annotations: 8R5Q

Structure of apo TDO with a bound inhibitor

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	indolic compounds 2, 3-dioxygenase-like	8098710	3001961	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	indolic compounds 2, 3-dioxygenase-like	8098710	3001961	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	indolic compounds 2, 3-dioxygenase-like	8098710	3001961	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	indolic compounds 2, 3-dioxygenase-like	8098710	3001961	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	bCoV_S1_N	e8r5qA01	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: bCoV_S1_N	ECOD (v295)
B	Rnf-Nqr	e8r5qB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Rnf-Nqr	ECOD (v295)
D	Rnf-Nqr	e8r5qD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Rnf-Nqr	ECOD (v295)
C	Rnf-Nqr	e8r5qC1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Rnf-Nqr	ECOD (v295)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Tryptophan 2,3-dioxygenase	oxygen binding binding small molecule binding tetrapyrrole binding heme binding amino acid binding oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen oxidoreductase activity L-tryptophan 2,3-dioxygenase activity oxidoreductase activity, acting on single donors with incorporation of molecular oxygen catalytic activity dioxygenase activity cation binding ion binding oxygen binding binding small molecule binding tetrapyrrole binding heme binding amino acid binding oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen oxidoreductase activity L-tryptophan 2,3-dioxygenase activity oxidoreductase activity, acting on single donors with incorporation of molecular oxygen catalytic activity dioxygenase activity cation binding ion binding metal ion binding identical protein binding protein binding	response to stimulus response to chemical response to oxygen-containing compound response to nitroglycerin response to nitrogen compound protein-containing complex organization protein homotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization response to stimulus response to chemical response to oxygen-containing compound response to nitroglycerin response to nitrogen compound protein-containing complex organization protein homotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis response to ketone response to lipid response to endogenous stimulus response to alcohol response to cortisol response to glucocorticoid response to corticosteroid response to hormone response to steroid hormone response to ethanol	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR037217	Tryptophan/Indoleamine 2,3-dioxygenase-like	Homologous Superfamily
A, B, C, D	IPR004981	Tryptophan 2,3-dioxygenase	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	: P48775	Starvation familial hypertryptophanemia pancreatic ductal adenocarcinoma primitive neuroectodermal tumor schizophrenia amyotrophic lateral sclerosis spina bifida breast carcinoma ductal breast carcinoma in situ head and neck cancer lung adenocarcinoma medulloblastoma oligodendroglioma periodontitis psoriasis Starvation familial hypertryptophanemia pancreatic ductal adenocarcinoma primitive neuroectodermal tumor schizophrenia amyotrophic lateral sclerosis spina bifida breast carcinoma ductal breast carcinoma in situ head and neck cancer lung adenocarcinoma medulloblastoma oligodendroglioma periodontitis psoriasis astrocytic tumor bipolar disorder chronic obstructive pulmonary disease interstitial cystitis major depressive disorder non-small cell lung carcinoma ovarian cancer pituitary cancer Sjogren syndrome autism ulcerative colitis breast cancer cutaneous lupus erythematosus gastric carcinoma invasive ductal breast carcinoma malignant mesothelioma

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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.