ID KYNU_KORVE Reviewed; 424 AA. AC Q1ITW5; DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot. DT 13-JUN-2006, sequence version 1. DT 27-MAR-2024, entry version 90. 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}; GN OrderedLocusNames=Acid345_0680; OS Koribacter versatilis (strain Ellin345). OC Bacteria; Acidobacteriota; Terriglobia; Terriglobales; Acidobacteriaceae; OC Koribacter. OX NCBI_TaxID=204669; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=Ellin345; RX PubMed=19201974; DOI=10.1128/aem.02294-08; RA Ward N.L., Challacombe J.F., Janssen P.H., Henrissat B., Coutinho P.M., RA Wu M., Xie G., Haft D.H., Sait M., Badger J., Barabote R.D., Bradley B., RA Brettin T.S., Brinkac L.M., Bruce D., Creasy T., Daugherty S.C., RA Davidsen T.M., DeBoy R.T., Detter J.C., Dodson R.J., Durkin A.S., RA Ganapathy A., Gwinn-Giglio M., Han C.S., Khouri H., Kiss H., Kothari S.P., RA Madupu R., Nelson K.E., Nelson W.C., Paulsen I., Penn K., Ren Q., RA Rosovitz M.J., Selengut J.D., Shrivastava S., Sullivan S.A., Tapia R., RA Thompson L.S., Watkins K.L., Yang Q., Yu C., Zafar N., Zhou L., Kuske C.R.; RT "Three genomes from the phylum Acidobacteria provide insight into the RT lifestyles of these microorganisms in soils."; RL Appl. Environ. Microbiol. 75:2046-2056(2009). 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; CP000360; ABF39685.1; -; Genomic_DNA. DR AlphaFoldDB; Q1ITW5; -. DR SMR; Q1ITW5; -. DR STRING; 204669.Acid345_0680; -. DR EnsemblBacteria; ABF39685; ABF39685; Acid345_0680. DR KEGG; aba:Acid345_0680; -. DR eggNOG; COG3844; Bacteria. DR HOGENOM; CLU_003433_4_0_0; -. DR UniPathway; UPA00253; UER00329. DR UniPathway; UPA00334; UER00455. DR Proteomes; UP000002432; 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 NCBIfam; TIGR01814; kynureninase; 1. 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. PE 3: Inferred from homology; KW Hydrolase; Pyridine nucleotide biosynthesis; Pyridoxal phosphate; KW Reference proteome. FT CHAIN 1..424 FT /note="Kynureninase" FT /id="PRO_0000356985" FT BINDING 109 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 110 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 137..140 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 222 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 225 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 247 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 278 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT BINDING 306 FT /ligand="pyridoxal 5'-phosphate" FT /ligand_id="ChEBI:CHEBI:597326" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" FT MOD_RES 248 FT /note="N6-(pyridoxal phosphate)lysine" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01970" SQ SEQUENCE 424 AA; 47776 MW; DDE23AF052AE8A83 CRC64; MAAAAFDTTE NFAIEMDARD PMSRFRGRFH IPPAPDGSAS VYLVGHSLGL QPKTVRAYLE QELKDWETLG VEGHFRGKHP WMPYHRLLTE QTARLVCAQP SEVVVMNSLT VNLHLMMVSF YRPTRERHNI LIEGSAFPSD QYAVQSQIKF HGFDPASSLL ELCPRVGEAT MRDEDILELI EREGQSIALI LLGGVNYATG QAFDMAEITK AGHAQGCVVA FDCAHAAGNL ELKLHEWDVD WAAWCSYKYL NGGPGCIGGC FVHERYARDF ELPRFAGWWG HDQETRFKMG PEFHPMAGAE GWQLSNPSIL TMAALRASME IFDEAGIGKL RQRSIALTGY LEFLLDQQKS ARFEIITPRE PERRGAQLSI RVAAGNRSVC DRLVEEGALC DWREPDILRV APVPLYCSYR DCYRFVQRFV ANLN //