3E9K | pdb_00003e9k

Crystal structure of Homo sapiens kynureninase-3-hydroxyhippuric acid inhibitor complex

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e3e9kA1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: IL7	F:	ECOD (20:10:01)

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	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	PF22580	Kynureninase C-terminal domain (KYNU_C)	Kynureninase C-terminal domain	This entry represents de C-terminal domain of kynureninase [1-5], a member of a large family of catalytically diverse but structurally homologous pyridoxal 5'-phosphate (PLP) dependent enzymes. The Homo sapiens and other eukaryotic constitutive kynur ...	This entry represents de C-terminal domain of kynureninase [1-5], a member of a large family of catalytically diverse but structurally homologous pyridoxal 5'-phosphate (PLP) dependent enzymes. The Homo sapiens and other eukaryotic constitutive kynureninases preferentially catalyse the hydrolytic cleavage of 3-hydroxy-l-kynurenine to produce 3-hydroxyanthranilate and l-alanine, while l-kynurenine is the substrate of many prokaryotic inducible kynureninases [1-5]..	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Kynureninase	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding anion binding heterocyclic compound binding small molecule binding hydrolase activity, acting on carbon-carbon bonds hydrolase activity, acting on carbon-carbon bonds, in ketonic substances identical protein binding protein binding binding protein homodimerization activity protein dimerization activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding anion binding heterocyclic compound binding small molecule binding hydrolase activity, acting on carbon-carbon bonds hydrolase activity, acting on carbon-carbon bonds, in ketonic substances kynureninase activity hydrolase activity catalytic activity	biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response response to type II interferon response to cytokine defense response to symbiont response to external stimulus response to biotic stimulus response to peptide response to chemical immune system process defense response to other organism response to stress biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response response to type II interferon response to cytokine defense response to symbiont response to external stimulus response to biotic stimulus response to peptide response to chemical immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus response to nutrient levels response to nutrient response to oxygen-containing compound response to vitamin B6 response to nitrogen compound response to vitamin quinolinate metabolic process oxoacid metabolic process small molecule biosynthetic process dicarboxylic acid metabolic process pyridine-containing compound biosynthetic process carboxylic acid metabolic process organic acid metabolic process organic acid biosynthetic process carboxylic acid biosynthetic process quinolinate biosynthetic process biosynthetic process pyridine-containing compound metabolic process metabolic process cellular process small molecule metabolic process dicarboxylic acid biosynthetic process NAD+ biosynthetic process nucleotide biosynthetic process indole-containing compound metabolic process amino acid metabolic process alpha-amino acid metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process L-tryptophan metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process phosphate-containing compound metabolic process phosphorus metabolic process NAD+ metabolic process pyridine nucleotide biosynthetic process nucleoside phosphate metabolic process nicotinamide nucleotide metabolic process aromatic amino acid metabolic process 'de novo' NAD+ biosynthetic process from L-tryptophan primary metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process L-amino acid metabolic process purine-containing compound metabolic process nicotinamide nucleotide biosynthetic process proteinogenic amino acid metabolic process organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process purine nucleotide biosynthetic process benzene-containing compound metabolic process anthranilate metabolic process monocarboxylic acid metabolic process catabolic process ketone metabolic process organic acid catabolic process L-kynurenine metabolic process non-proteinogenic amino acid metabolic process carboxylic acid catabolic process ketone catabolic process amino acid catabolic process L-kynurenine catabolic process non-proteinogenic amino acid catabolic process L-amino acid catabolic process kynurenine metabolic process alpha-amino acid catabolic process small molecule catabolic process aromatic amino acid family catabolic process L-tryptophan catabolic process proteinogenic amino acid catabolic process indole-containing compound catabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle cytosol nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle cytosol nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR015421	Pyridoxal phosphate-dependent transferase, major domain	Homologous Superfamily
A	IPR015422	Pyridoxal phosphate-dependent transferase, small domain	Homologous Superfamily
A	IPR010111	Kynureninase	Family
A	IPR015424	Pyridoxal phosphate-dependent transferase	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q16719	encephalopathy due to hydroxykynureninuria Inflammation lymphoplasmacytic lymphoma malignant glioma MALT lymphoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia adrenal cortex carcinoma sinusitis brain disease ulcerative colitis Crohn disease lung cancer major depressive disorder malignant mesothelioma encephalopathy due to hydroxykynureninuria Inflammation lymphoplasmacytic lymphoma malignant glioma MALT lymphoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia adrenal cortex carcinoma sinusitis brain disease ulcerative colitis Crohn disease lung cancer major depressive disorder malignant mesothelioma neurodegenerative disease pancreatic ductal adenocarcinoma pilocytic astrocytoma allergic rhinitis Sjogren syndrome breast carcinoma vertebral, cardiac, renal, and limb defects syndrome 2 cutaneous lupus erythematosus glioblastoma invasive ductal breast carcinoma lung carcinoma malignant ependymoma malignant pancreatic neoplasm pancreatic intraductal papillary-mucinous neoplasm psoriasis atopic eczema tuberculosis congenital anomaly of kidney and urinary tract cystic fibrosis ductal breast carcinoma in situ IgA glomerulonephritis

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	CSX	Parent Component: CYS RESID: AA0451 PSI-MOD : 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide MOD:01380

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.