ID   T23O_SERP5              Reviewed;         280 AA.
AC   A8GG83;
DT   20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT   13-NOV-2007, sequence version 1.
DT   03-AUG-2022, entry version 71.
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=Spro_3022;
OS   Serratia proteamaculans (strain 568).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Yersiniaceae; Serratia.
OX   NCBI_TaxID=399741;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=568;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Taghavi S., Newman L.,
RA   Vangronsveld J., van der Lelie D., Richardson P.;
RT   "Complete sequence of chromosome of Serratia proteamaculans 568.";
RL   Submitted (SEP-2007) to the EMBL/GenBank/DDBJ databases.
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}.
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; CP000826; ABV42123.1; -; Genomic_DNA.
DR   RefSeq; WP_012145744.1; NC_009832.1.
DR   AlphaFoldDB; A8GG83; -.
DR   SMR; A8GG83; -.
DR   STRING; 399741.Spro_3022; -.
DR   EnsemblBacteria; ABV42123; ABV42123; Spro_3022.
DR   KEGG; spe:Spro_3022; -.
DR   eggNOG; COG3483; Bacteria.
DR   HOGENOM; CLU_063240_0_0_6; -.
DR   OMA; WRWRNDH; -.
DR   OrthoDB; 1660023at2; -.
DR   UniPathway; UPA00333; UER00453.
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..280
FT                   /note="Tryptophan 2,3-dioxygenase"
FT                   /id="PRO_0000360133"
FT   BINDING         47..51
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01972"
FT   BINDING         109
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01972"
FT   BINDING         113
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01972"
FT   BINDING         236
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         250
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01972"
SQ   SEQUENCE   280 AA;  32713 MW;  FCDB8E50CC4A8978 CRC64;
     MNKRELESAI VTDFSKRMSY GDYLCLDQLL DCQHPLSNPQ HHDEMLFVVQ HQTSELWMKL
     MLHELQAARI LVQQDKLSHC FKILARVKQI QRLLFEQWAV LETLTPSEYV EFRDVLGNSS
     GFQSHQYRSI EFLLGNKNAA MLAVFSNDAD KHAALKAILE APSLYDEYLL YLSRHGLPIP
     QECIERDWTQ PYQRNPDLLP AFKEIYDHPQ KYWEAYEMAE KLVDIEESFH LWRFRHMKTV
     ERIIGFKTGT GGSSGVSFLK KALELTFFPE LLDVRTEIGA