ID   Q1MRA6_LAWIP            Unreviewed;       378 AA.
AC   Q1MRA6;
DT   30-MAY-2006, integrated into UniProtKB/TrEMBL.
DT   30-MAY-2006, sequence version 1.
DT   27-MAR-2024, entry version 87.
DE   RecName: Full=Kynureninase {ECO:0000256|PIRNR:PIRNR038800};
DE            EC=3.7.1.3 {ECO:0000256|PIRNR:PIRNR038800};
GN   OrderedLocusNames=LI0415 {ECO:0000313|EMBL:CAJ54470.1};
OS   Lawsonia intracellularis (strain PHE/MN1-00).
OC   Bacteria; Thermodesulfobacteriota; Desulfovibrionia; Desulfovibrionales;
OC   Desulfovibrionaceae; Lawsonia.
OX   NCBI_TaxID=363253 {ECO:0000313|EMBL:CAJ54470.1, ECO:0000313|Proteomes:UP000002430};
RN   [1] {ECO:0000313|EMBL:CAJ54470.1, ECO:0000313|Proteomes:UP000002430}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PHE/MN1-00 {ECO:0000313|EMBL:CAJ54470.1,
RC   ECO:0000313|Proteomes:UP000002430};
RA   Kaur K., Zhang Q., Beckler D., Munir S., Li L., Kinsley K., Herron L.,
RA   Peterson A., May B., Singh S., Gebhart C., Kapur V.;
RT   "The complete genome sequence of Lawsonia intracellularis: the causative
RT   agent of proliferative enteropathy.";
RL   Submitted (NOV-2005) to the EMBL/GenBank/DDBJ databases.
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.
CC       {ECO:0000256|PIRNR:PIRNR038800}.
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;
CC         Evidence={ECO:0000256|PIRNR:PIRNR038800};
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:0000256|PIRNR:PIRNR038800};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000256|PIRNR:PIRNR038800};
CC   -!- PATHWAY: Amino-acid degradation; L-kynurenine degradation; L-alanine
CC       and anthranilate from L-kynurenine: step 1/1.
CC       {ECO:0000256|PIRNR:PIRNR038800}.
CC   -!- PATHWAY: Cofactor biosynthesis; NAD(+) biosynthesis; quinolinate from
CC       L-kynurenine: step 2/3. {ECO:0000256|PIRNR:PIRNR038800}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000256|PIRNR:PIRNR038800}.
CC   -!- SIMILARITY: Belongs to the kynureninase family.
CC       {ECO:0000256|PIRNR:PIRNR038800}.
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; AM180252; CAJ54470.1; -; Genomic_DNA.
DR   RefSeq; WP_011526500.1; NC_008011.1.
DR   AlphaFoldDB; Q1MRA6; -.
DR   STRING; 363253.LI0415; -.
DR   KEGG; lip:LI0415; -.
DR   eggNOG; COG3844; Bacteria.
DR   HOGENOM; CLU_003433_4_1_7; -.
DR   OrthoDB; 9812626at2; -.
DR   UniPathway; UPA00253; UER00329.
DR   UniPathway; UPA00334; UER00455.
DR   Proteomes; UP000002430; 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-EC.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR   GO; GO:0097053; P:L-kynurenine catabolic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0009435; P:NAD biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0006569; P:tryptophan catabolic process; IEA:InterPro.
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   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.
PE   3: Inferred from homology;
KW   Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|PIRNR:PIRNR038800};
KW   Pyridine nucleotide biosynthesis {ECO:0000256|ARBA:ARBA00022642,
KW   ECO:0000256|PIRNR:PIRNR038800};
KW   Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898,
KW   ECO:0000256|PIRNR:PIRNR038800};
KW   Reference proteome {ECO:0000313|Proteomes:UP000002430}.
FT   DOMAIN          60..313
FT                   /note="Aminotransferase class V"
FT                   /evidence="ECO:0000259|Pfam:PF00266"
SQ   SEQUENCE   378 AA;  42377 MW;  8DE8CFFB416359D8 CRC64;
     MLVDKFILPE CKVYMCGHSL GPSLKTTSDA VCSTLQDFAS YGVSSWNKSG WIDLSYALGA
     KIAALVGAKF DEVIVCDSTV LNLFKALKVA MSLQNGRNII LTTDDNFPAD LYIAQGISEV
     KYIKSNEIYK NIDETVAVLM LTHVNYRDSS VLDMKTINEY AHKYGVLTVW DLSHSIGIVP
     VDLEESSTDF AVGCTYKYLS GGPGSPAFIY ANRMYHEHMQ SPIQGWIGHN QPFSFEKEYT
     SFGVRKFMSG TPAILSMKAL EAALEIFDKE VIVKSYSIAK EYSNILIKSL KSHGIEVYAP
     QNRGGHVAFM HKHGYAFSRA LIDAGFICDY RAPDLIRLCV NPLYISLRNI ESCIEQIQFI
     MERSLYLKPE YNQMQKVT
//