ID KYNU_XANAC Reviewed; 423 AA. AC Q8PM33; DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot. DT 01-OCT-2002, sequence version 1. DT 03-MAY-2023, entry version 110. DE RecName: Full=Kynureninase {ECO:0000255|HAMAP-Rule:MF_01970}; DE EC=3.7.1.3 {ECO:0000255|HAMAP-Rule:MF_01970}; DE AltName: Full=L-kynurenine hydrolase {ECO:0000255|HAMAP-Rule:MF_01970}; GN Name=kynU {ECO:0000255|HAMAP-Rule:MF_01970}; OrderedLocusNames=XAC1601; OS Xanthomonas axonopodis pv. citri (strain 306). OC Bacteria; Pseudomonadota; Gammaproteobacteria; Xanthomonadales; OC Xanthomonadaceae; Xanthomonas. OX NCBI_TaxID=190486; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=306; RX PubMed=12024217; DOI=10.1038/417459a; RA da Silva A.C.R., Ferro J.A., Reinach F.C., Farah C.S., Furlan L.R., RA Quaggio R.B., Monteiro-Vitorello C.B., Van Sluys M.A., Almeida N.F. Jr., RA Alves L.M.C., do Amaral A.M., Bertolini M.C., Camargo L.E.A., Camarotte G., RA Cannavan F., Cardozo J., Chambergo F., Ciapina L.P., Cicarelli R.M.B., RA Coutinho L.L., Cursino-Santos J.R., El-Dorry H., Faria J.B., RA Ferreira A.J.S., Ferreira R.C.C., Ferro M.I.T., Formighieri E.F., RA Franco M.C., Greggio C.C., Gruber A., Katsuyama A.M., Kishi L.T., RA Leite R.P., Lemos E.G.M., Lemos M.V.F., Locali E.C., Machado M.A., RA Madeira A.M.B.N., Martinez-Rossi N.M., Martins E.C., Meidanis J., RA Menck C.F.M., Miyaki C.Y., Moon D.H., Moreira L.M., Novo M.T.M., RA Okura V.K., Oliveira M.C., Oliveira V.R., Pereira H.A., Rossi A., RA Sena J.A.D., Silva C., de Souza R.F., Spinola L.A.F., Takita M.A., RA Tamura R.E., Teixeira E.C., Tezza R.I.D., Trindade dos Santos M., RA Truffi D., Tsai S.M., White F.F., Setubal J.C., Kitajima J.P.; RT "Comparison of the genomes of two Xanthomonas pathogens with differing host RT specificities."; RL Nature 417:459-463(2002). CC -!- FUNCTION: Catalyzes the cleavage of L-kynurenine (L-Kyn) and L-3- CC hydroxykynurenine (L-3OHKyn) into anthranilic acid (AA) and 3- CC hydroxyanthranilic acid (3-OHAA), respectively. {ECO:0000255|HAMAP- CC Rule:MF_01970}. CC -!- CATALYTIC ACTIVITY: CC Reaction=H2O + L-kynurenine = anthranilate + H(+) + L-alanine; CC Xref=Rhea:RHEA:16813, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, CC ChEBI:CHEBI:16567, ChEBI:CHEBI:57959, ChEBI:CHEBI:57972; EC=3.7.1.3; CC Evidence={ECO:0000255|HAMAP-Rule:MF_01970}; CC -!- CATALYTIC ACTIVITY: CC Reaction=3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate + H(+) + CC L-alanine; Xref=Rhea:RHEA:25143, ChEBI:CHEBI:15377, CC ChEBI:CHEBI:15378, ChEBI:CHEBI:36559, ChEBI:CHEBI:57972, CC ChEBI:CHEBI:58125; EC=3.7.1.3; Evidence={ECO:0000255|HAMAP- CC Rule:MF_01970}; CC -!- COFACTOR: CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326; CC Evidence={ECO:0000255|HAMAP-Rule:MF_01970}; CC -!- PATHWAY: Amino-acid degradation; L-kynurenine degradation; L-alanine CC and anthranilate from L-kynurenine: step 1/1. {ECO:0000255|HAMAP- CC Rule:MF_01970}. CC -!- PATHWAY: Cofactor biosynthesis; NAD(+) biosynthesis; quinolinate from CC L-kynurenine: step 2/3. {ECO:0000255|HAMAP-Rule:MF_01970}. CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01970}. CC -!- SIMILARITY: Belongs to the kynureninase family. {ECO:0000255|HAMAP- CC Rule:MF_01970}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AE008923; AAM36469.1; -; Genomic_DNA. DR RefSeq; WP_011051023.1; NC_003919.1. DR AlphaFoldDB; Q8PM33; -. DR SMR; Q8PM33; -. DR STRING; 190486.XAC1601; -. DR EnsemblBacteria; AAM36469; AAM36469; XAC1601. DR GeneID; 66910759; -. DR KEGG; xac:XAC1601; -. DR eggNOG; COG3844; Bacteria. DR HOGENOM; CLU_003433_4_0_6; -. DR OMA; TFPTDGY; -. DR UniPathway; UPA00253; UER00329. DR UniPathway; UPA00334; UER00455. DR Proteomes; UP000000576; Chromosome. DR GO; GO:0005737; C:cytoplasm; IEA:InterPro. DR GO; GO:0061981; F:3-hydroxykynureninase activity; IEA:RHEA. DR GO; GO:0030429; F:kynureninase activity; IEA:UniProtKB-UniRule. DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule. DR GO; GO:0034354; P:'de novo' NAD biosynthetic process from tryptophan; IEA:UniProtKB-UniRule. DR GO; GO:0043420; P:anthranilate metabolic process; IEA:UniProtKB-UniRule. DR GO; GO:0097053; P:L-kynurenine catabolic process; IEA:UniProtKB-UniPathway. DR GO; GO:0019805; P:quinolinate biosynthetic process; IEA:UniProtKB-UniRule. DR GO; GO:0006569; P:tryptophan catabolic process; IEA:UniProtKB-UniRule. DR Gene3D; 3.90.1150.10; Aspartate Aminotransferase, domain 1; 1. DR Gene3D; 3.40.640.10; Type I PLP-dependent aspartate aminotransferase-like (Major domain); 1. DR HAMAP; MF_01970; Kynureninase; 1. DR InterPro; IPR000192; Aminotrans_V_dom. DR InterPro; IPR010111; Kynureninase. DR InterPro; IPR015424; PyrdxlP-dep_Trfase. DR InterPro; IPR015421; PyrdxlP-dep_Trfase_major. DR InterPro; IPR015422; PyrdxlP-dep_Trfase_small. DR PANTHER; PTHR14084; KYNURENINASE; 1. DR PANTHER; PTHR14084:SF0; KYNURENINASE; 1. DR Pfam; PF00266; Aminotran_5; 1. DR PIRSF; PIRSF038800; KYNU; 1. DR SUPFAM; SSF53383; PLP-dependent transferases; 1. DR TIGRFAMs; TIGR01814; kynureninase; 1. PE 3: Inferred from homology; KW Hydrolase; Pyridine nucleotide biosynthesis; Pyridoxal phosphate. FT CHAIN 1..423 FT /note="Kynureninase" FT /id="PRO_0000357014" FT BINDING 105 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 106 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 133..136 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 218 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 221 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 243 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 273 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 301 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT MOD_RES 244 FT /note="N6-(pyridoxal phosphate)lysine" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" SQ SEQUENCE 423 AA; 45845 MW; D05719233F2F29BC CRC64; MTDPLSRAHA AALDAADPLR NLRDAFVFPQ HGDDDQTYFV GNSLGLQPRA ARAMVDEVLD QWGALAVEGH FTGPTQWLTY HQLVGDALAR VVGAQPGEVV AMNTLSVNLH LMMASFYRPT AERGAILIEA GAFPSDRHAV ESQLRLHGLD PATHLIEVEA DEPNGTVSMS AIAEAIAQHG PHLALVLWPG IQYRTGQAFD LAEIVRLARA QGAAVGLDLA HAVGNLPLTL HDDGVDFAVW CHYKYLNAGP GAVGGCFVHA RHATSDLPRM AGWWGHEQQT RFRMDPQFVP SPGAEGWQLS NPPVLALAPL RASLALFDQA GMAALRAKSE QLTGHLEQMI HARVPQVLQI VTPVEPARRG CQLSLRVAGG RARGRALFEH LHAAGVLGDW REPDVIRIAP VPLYNRFSDL HTFVEQVEAW AAA //