ID E4TS96_MARTH Unreviewed; 436 AA.
AC E4TS96;
DT 08-FEB-2011, integrated into UniProtKB/TrEMBL.
DT 08-FEB-2011, sequence version 1.
DT 27-MAR-2024, entry version 70.
DE RecName: Full=Kynureninase {ECO:0000256|HAMAP-Rule:MF_01970, ECO:0000256|PIRNR:PIRNR038800};
DE EC=3.7.1.3 {ECO:0000256|HAMAP-Rule:MF_01970, ECO:0000256|PIRNR:PIRNR038800};
DE AltName: Full=L-kynurenine hydrolase {ECO:0000256|HAMAP-Rule:MF_01970};
GN Name=kynU {ECO:0000256|HAMAP-Rule:MF_01970};
GN OrderedLocusNames=Ftrac_2835 {ECO:0000313|EMBL:ADR22813.1};
OS Marivirga tractuosa (strain ATCC 23168 / DSM 4126 / NBRC 15989 / NCIMB 1408
OS / VKM B-1430 / H-43) (Microscilla tractuosa) (Flexibacter tractuosus).
OC Bacteria; Bacteroidota; Cytophagia; Cytophagales; Marivirgaceae; Marivirga.
OX NCBI_TaxID=643867 {ECO:0000313|EMBL:ADR22813.1, ECO:0000313|Proteomes:UP000008720};
RN [1] {ECO:0000313|EMBL:ADR22813.1, ECO:0000313|Proteomes:UP000008720}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 23168 / DSM 4126 / NBRC 15989 / NCIMB 1408 / VKM B-1430 /
RC H-43 {ECO:0000313|Proteomes:UP000008720};
RX PubMed=21677852; DOI=10.4056/sigs.1623941;
RA Pagani I., Chertkov O., Lapidus A., Lucas S., Del Rio T.G., Tice H.,
RA Copeland A., Cheng J.F., Nolan M., Saunders E., Pitluck S., Held B.,
RA Goodwin L., Liolios K., Ovchinikova G., Ivanova N., Mavromatis K., Pati A.,
RA Chen A., Palaniappan K., Land M., Hauser L., Jeffries C.D., Detter J.C.,
RA Han C., Tapia R., Ngatchou-Djao O.D., Rohde M., Goker M., Spring S.,
RA Sikorski J., Woyke T., Bristow J., Eisen J.A., Markowitz V., Hugenholtz P.,
RA Klenk H.P., Kyrpides N.C.;
RT "Complete genome sequence of Marivirga tractuosa type strain (H-43).";
RL Stand. Genomic Sci. 4:154-162(2011).
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:0000256|HAMAP-
CC Rule:MF_01970, 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|HAMAP-Rule:MF_01970,
CC ECO:0000256|PIRNR:PIRNR038800};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01970,
CC ECO:0000256|PIRNR:PIRNR038800};
CC -!- PATHWAY: Amino-acid degradation; L-kynurenine degradation; L-alanine
CC and anthranilate from L-kynurenine: step 1/1. {ECO:0000256|HAMAP-
CC Rule:MF_01970, ECO:0000256|PIRNR:PIRNR038800}.
CC -!- PATHWAY: Cofactor biosynthesis; NAD(+) biosynthesis; quinolinate from
CC L-kynurenine: step 2/3. {ECO:0000256|HAMAP-Rule:MF_01970,
CC ECO:0000256|PIRNR:PIRNR038800}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01970,
CC ECO:0000256|PIRNR:PIRNR038800}.
CC -!- SIMILARITY: Belongs to the kynureninase family. {ECO:0000256|HAMAP-
CC Rule:MF_01970, ECO:0000256|PIRNR:PIRNR038800}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01970}.
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DR EMBL; CP002349; ADR22813.1; -; Genomic_DNA.
DR RefSeq; WP_013454956.1; NC_014759.1.
DR AlphaFoldDB; E4TS96; -.
DR STRING; 643867.Ftrac_2835; -.
DR KEGG; mtt:Ftrac_2835; -.
DR eggNOG; COG3844; Bacteria.
DR HOGENOM; CLU_003433_4_0_10; -.
DR OrthoDB; 9812626at2; -.
DR UniPathway; UPA00253; UER00329.
DR UniPathway; UPA00334; UER00455.
DR Proteomes; UP000008720; 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 {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_01970};
KW Pyridine nucleotide biosynthesis {ECO:0000256|ARBA:ARBA00022642,
KW ECO:0000256|HAMAP-Rule:MF_01970};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW Rule:MF_01970}; Reference proteome {ECO:0000313|Proteomes:UP000008720}.
FT DOMAIN 140..355
FT /note="Aminotransferase class V"
FT /evidence="ECO:0000259|Pfam:PF00266"
FT BINDING 109
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01970"
FT BINDING 110
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01970"
FT BINDING 137..140
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01970"
FT BINDING 229
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01970"
FT BINDING 232
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01970"
FT BINDING 254
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01970"
FT BINDING 285
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01970"
FT BINDING 313
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01970"
FT MOD_RES 255
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01970"
SQ SEQUENCE 436 AA; 50494 MW; 5F2ECF8C278070D1 CRC64;
MAENYQNTLE YAQKMDQEDP LKKYRNEFHI PIIDGQQVIY YTGNSLGLQP KRTRSFIEKE
MKDWELFGVE GHFNKKKENI WYKYHEYGKD AIAEIVGAKP IEVVPMNNLT VNLHLLLVSF
YRPTAKKFKI IVEKGAFPSD QYVFESQLNF HAFHGGQKLF DPQEALVEIA PREGEDTLRT
EDIIATIEEH QNELCLVMMG GLQYYTGQFF DLKKITKAAH KVGAYAGFDL AHAAGNIELK
LHDWDVDFAS WCTYKYLNSG PGNVSGVYVH ERFANDKSLP RFAGWWGHDE KERFKMEKGF
IPMEGADGWQ LSNTNVLGHA AHYASLEIFK EVGMKALRKK SVLLTGYLEF LINEFNKQEK
IFEILTPKEP ENRGCQLSLY LLKYGKPLFD ELMKRGVLGD WREPDVIRLA PVPLYNTFEE
QYLFIEKLRE AVEALK
//
