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Database: UniProt/SWISS-PROT
Entry: KYNU_STRMK
LinkDB: KYNU_STRMK
Original site: KYNU_STRMK 
ID   KYNU_STRMK              Reviewed;         424 AA.
AC   B2FL97;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   05-DEC-2018, entry version 67.
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=Smlt3160;
OS   Stenotrophomonas maltophilia (strain K279a).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Stenotrophomonas;
OC   Stenotrophomonas maltophilia group.
OX   NCBI_TaxID=522373;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K279a;
RX   PubMed=18419807; DOI=10.1186/gb-2008-9-4-r74;
RA   Crossman L.C., Gould V.C., Dow J.M., Vernikos G.S., Okazaki A.,
RA   Sebaihia M., Saunders D., Arrowsmith C., Carver T., Peters N.,
RA   Adlem E., Kerhornou A., Lord A., Murphy L., Seeger K., Squares R.,
RA   Rutter S., Quail M.A., Rajandream M.A., Harris D., Churcher C.,
RA   Bentley S.D., Parkhill J., Thomson N.R., Avison M.B.;
RT   "The complete genome, comparative and functional analysis of
RT   Stenotrophomonas maltophilia reveals an organism heavily shielded by
RT   drug resistance determinants.";
RL   Genome Biol. 9:R74.1-R74.13(2008).
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:0000255|HAMAP-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;
CC         EC=3.7.1.3; Evidence={ECO:0000255|HAMAP-Rule:MF_01970};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=3-hydroxy-L-kynurenine + H2O = 3-hydroxyanthranilate +
CC         H(+) + 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-
CC       alanine and anthranilate from L-kynurenine: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_01970}.
CC   -!- PATHWAY: Cofactor biosynthesis; NAD(+) biosynthesis; quinolinate
CC       from 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.
CC       {ECO:0000255|HAMAP-Rule:MF_01970}.
DR   EMBL; AM743169; CAQ46604.1; -; Genomic_DNA.
DR   RefSeq; WP_012480764.1; NC_010943.1.
DR   ProteinModelPortal; B2FL97; -.
DR   SMR; B2FL97; -.
DR   STRING; 522373.Smlt3160; -.
DR   EnsemblBacteria; CAQ46604; CAQ46604; Smlt3160.
DR   GeneID; 6391370; -.
DR   KEGG; sml:Smlt3160; -.
DR   PATRIC; fig|522373.3.peg.2956; -.
DR   eggNOG; ENOG4105CKY; Bacteria.
DR   eggNOG; COG3844; LUCA.
DR   HOGENOM; HOG000242438; -.
DR   KO; K01556; -.
DR   OMA; AGWWGHD; -.
DR   BioCyc; SMAL522373:SMLT_RS15045_3-MONOMER; -.
DR   UniPathway; UPA00253; UER00329.
DR   UniPathway; UPA00334; UER00455.
DR   Proteomes; UP000008840; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:InterPro.
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; 3.40.640.10; -; 1.
DR   Gene3D; 3.90.1150.10; -; 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; IPR015422; PyrdxlP-dep_Trfase_dom1.
DR   InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR   PANTHER; PTHR14084; PTHR14084; 1.
DR   Pfam; PF00266; Aminotran_5; 1.
DR   PIRSF; PIRSF038800; KYNU; 1.
DR   SUPFAM; SSF53383; SSF53383; 1.
DR   TIGRFAMs; TIGR01814; kynureninase; 1.
PE   3: Inferred from homology;
KW   Complete proteome; Hydrolase; Pyridine nucleotide biosynthesis;
KW   Pyridoxal phosphate.
FT   CHAIN         1    424       Kynureninase.
FT                                /FTId=PRO_0000357013.
FT   REGION      133    136       Pyridoxal phosphate binding.
FT                                {ECO:0000255|HAMAP-Rule:MF_01970}.
FT   BINDING     105    105       Pyridoxal phosphate; via amide nitrogen.
FT                                {ECO:0000255|HAMAP-Rule:MF_01970}.
FT   BINDING     106    106       Pyridoxal phosphate. {ECO:0000255|HAMAP-
FT                                Rule:MF_01970}.
FT   BINDING     218    218       Pyridoxal phosphate. {ECO:0000255|HAMAP-
FT                                Rule:MF_01970}.
FT   BINDING     221    221       Pyridoxal phosphate. {ECO:0000255|HAMAP-
FT                                Rule:MF_01970}.
FT   BINDING     243    243       Pyridoxal phosphate. {ECO:0000255|HAMAP-
FT                                Rule:MF_01970}.
FT   BINDING     274    274       Pyridoxal phosphate. {ECO:0000255|HAMAP-
FT                                Rule:MF_01970}.
FT   BINDING     302    302       Pyridoxal phosphate. {ECO:0000255|HAMAP-
FT                                Rule:MF_01970}.
FT   MOD_RES     244    244       N6-(pyridoxal phosphate)lysine.
FT                                {ECO:0000255|HAMAP-Rule:MF_01970}.
SQ   SEQUENCE   424 AA;  46800 MW;  9B81C2D46958FDC4 CRC64;
     MSDLLSRTHA IALDAADPLR PLRNEFLIPR HGGGEQTYFV GNSLGLQPRG AQAAVQEVMK
     QWGELAVEGH FTGPTQWLSY HRLVSAQLAR VVGALPSEVV AMNTLSVNLH LMMVSFYRPT
     AQRPVILMEA GAFPTDRHAV EAQIRFHGFD PAECLVEVQP DEANGTISLT AIERAIAEHG
     PRLALVLWPG VQYRTGQAFD LDAITRAARL QGARIGFDLA HSVGNLPLRL HDVAPDFAVW
     CHYKYLNSGP GAVAGAFVHE RHHRDTTLPR FAGWWGHEEA TRFQMAPQFT PAIGAEGWQL
     SNPPILGLAP LRASLDLFER AGMEALRSKS LALTGMLEAL VRARLSGVLD IITPAEPQRR
     GCQLSLRVIG GRERGRALFE HLRGIGVLGD WREPDVIRIS PTPLYNRYLD VHHFVEEVEA
     WAGL
//
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