T23O_BACHK
ID T23O_BACHK Reviewed; 279 AA.
AC Q6HHX9;
DT 20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT 19-JUL-2004, sequence version 1.
DT 03-AUG-2022, entry version 91.
DE RecName: Full=Tryptophan 2,3-dioxygenase {ECO:0000255|HAMAP-Rule:MF_01972};
DE Short=TDO {ECO:0000255|HAMAP-Rule:MF_01972};
DE EC=1.13.11.11 {ECO:0000255|HAMAP-Rule:MF_01972};
DE AltName: Full=Tryptamin 2,3-dioxygenase {ECO:0000255|HAMAP-Rule:MF_01972};
DE AltName: Full=Tryptophan oxygenase {ECO:0000255|HAMAP-Rule:MF_01972};
DE Short=TO {ECO:0000255|HAMAP-Rule:MF_01972};
DE Short=TRPO {ECO:0000255|HAMAP-Rule:MF_01972};
DE AltName: Full=Tryptophan pyrrolase {ECO:0000255|HAMAP-Rule:MF_01972};
DE AltName: Full=Tryptophanase {ECO:0000255|HAMAP-Rule:MF_01972};
GN Name=kynA {ECO:0000255|HAMAP-Rule:MF_01972}; OrderedLocusNames=BT9727_2521;
OS Bacillus thuringiensis subsp. konkukian (strain 97-27).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC Bacillus cereus group.
OX NCBI_TaxID=281309;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=97-27;
RX PubMed=16621833; DOI=10.1128/jb.188.9.3382-3390.2006;
RA Han C.S., Xie G., Challacombe J.F., Altherr M.R., Bhotika S.S., Bruce D.,
RA Campbell C.S., Campbell M.L., Chen J., Chertkov O., Cleland C.,
RA Dimitrijevic M., Doggett N.A., Fawcett J.J., Glavina T., Goodwin L.A.,
RA Hill K.K., Hitchcock P., Jackson P.J., Keim P., Kewalramani A.R.,
RA Longmire J., Lucas S., Malfatti S., McMurry K., Meincke L.J., Misra M.,
RA Moseman B.L., Mundt M., Munk A.C., Okinaka R.T., Parson-Quintana B.,
RA Reilly L.P., Richardson P., Robinson D.L., Rubin E., Saunders E., Tapia R.,
RA Tesmer J.G., Thayer N., Thompson L.S., Tice H., Ticknor L.O., Wills P.L.,
RA Brettin T.S., Gilna P.;
RT "Pathogenomic sequence analysis of Bacillus cereus and Bacillus
RT thuringiensis isolates closely related to Bacillus anthracis.";
RL J. Bacteriol. 188:3382-3390(2006).
CC -!- FUNCTION: Heme-dependent dioxygenase that catalyzes the oxidative
CC cleavage of the L-tryptophan (L-Trp) pyrrole ring and converts L-
CC tryptophan to N-formyl-L-kynurenine. Catalyzes the oxidative cleavage
CC of the indole moiety. {ECO:0000255|HAMAP-Rule:MF_01972}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-tryptophan + O2 = N-formyl-L-kynurenine;
CC Xref=Rhea:RHEA:24536, ChEBI:CHEBI:15379, ChEBI:CHEBI:57912,
CC ChEBI:CHEBI:58629; EC=1.13.11.11; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01972};
CC -!- COFACTOR:
CC Name=heme; Xref=ChEBI:CHEBI:30413;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01972};
CC Note=Binds 1 heme group per subunit. {ECO:0000255|HAMAP-Rule:MF_01972};
CC -!- PATHWAY: Amino-acid degradation; L-tryptophan degradation via
CC kynurenine pathway; L-kynurenine from L-tryptophan: step 1/2.
CC {ECO:0000255|HAMAP-Rule:MF_01972}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_01972}.
CC -!- SIMILARITY: Belongs to the tryptophan 2,3-dioxygenase family.
CC {ECO:0000255|HAMAP-Rule:MF_01972}.
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DR EMBL; AE017355; AAT61838.1; -; Genomic_DNA.
DR RefSeq; WP_000661971.1; NC_005957.1.
DR RefSeq; YP_036847.1; NC_005957.1.
DR AlphaFoldDB; Q6HHX9; -.
DR SMR; Q6HHX9; -.
DR EnsemblBacteria; AAT61838; AAT61838; BT9727_2521.
DR KEGG; btk:BT9727_2521; -.
DR PATRIC; fig|281309.8.peg.2669; -.
DR HOGENOM; CLU_063240_0_0_9; -.
DR OMA; WRWRNDH; -.
DR UniPathway; UPA00333; UER00453.
DR Proteomes; UP000001301; Chromosome.
DR GO; GO:0020037; F:heme binding; ISS:UniProtKB.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004833; F:tryptophan 2,3-dioxygenase activity; ISS:UniProtKB.
DR GO; GO:0019441; P:tryptophan catabolic process to kynurenine; ISS:UniProtKB.
DR HAMAP; MF_01972; T23O; 1.
DR InterPro; IPR037217; Trp/Indoleamine_2_3_dOase-like.
DR InterPro; IPR017485; Trp_2-3-dOase_bac.
DR InterPro; IPR004981; Trp_2_3_dOase.
DR PANTHER; PTHR10138; PTHR10138; 2.
DR Pfam; PF03301; Trp_dioxygenase; 1.
DR SUPFAM; SSF140959; SSF140959; 1.
DR TIGRFAMs; TIGR03036; trp_2_3_diox; 1.
PE 3: Inferred from homology;
KW Dioxygenase; Heme; Iron; Metal-binding; Oxidoreductase;
KW Tryptophan catabolism.
FT CHAIN 1..279
FT /note="Tryptophan 2,3-dioxygenase"
FT /id="PRO_0000360087"
FT BINDING 48..52
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01972"
FT BINDING 110
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01972"
FT BINDING 114
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01972"
FT BINDING 237
FT /ligand="heme"
FT /ligand_id="ChEBI:CHEBI:30413"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01972"
FT BINDING 251
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01972"
SQ SEQUENCE 279 AA; 32780 MW; A61302B529A40203 CRC64;
MKENEKVIME KGIHTDFKEN MTYGEYLQLD SLLSSQKRLS DHHDEMLFIV IHQASELWMK
LILHELNAAI ESIKQDKLQP AFKMLARVSK IQSQIIQSWD ILATLTPSEY IEFRDSLGQA
SGFQSYQYRM IEYALGYKTP HALKIYEKDQ ELHARLHTAL HAPSLYDVAI QALVKEGFSI
HKDVLNRDIT QPYEEDATVE AAWLEVYADV KKYWNLYQLA EKLIDIEDWL QQWRFRHMKT
VERIIGHKMG TGGSSGVSYL KRVLDQRFFP ELWNVRTKL
