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PDXT_MYCBO
ID   PDXT_MYCBO              Reviewed;         198 AA.
AC   Q7TY92; A0A1R3Y1P1; X2BLD1;
DT   05-JUL-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   03-AUG-2022, entry version 93.
DE   RecName: Full=Pyridoxal 5'-phosphate synthase subunit PdxT {ECO:0000255|HAMAP-Rule:MF_01615};
DE            EC=4.3.3.6 {ECO:0000255|HAMAP-Rule:MF_01615};
DE   AltName: Full=Pdx2 {ECO:0000255|HAMAP-Rule:MF_01615};
DE   AltName: Full=Pyridoxal 5'-phosphate synthase glutaminase subunit {ECO:0000255|HAMAP-Rule:MF_01615};
DE            EC=3.5.1.2 {ECO:0000255|HAMAP-Rule:MF_01615};
GN   Name=pdxT {ECO:0000255|HAMAP-Rule:MF_01615};
GN   OrderedLocusNames=BQ2027_MB2636C;
OS   Mycobacterium bovis (strain ATCC BAA-935 / AF2122/97).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=233413;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-935 / AF2122/97;
RX   PubMed=12788972; DOI=10.1073/pnas.1130426100;
RA   Garnier T., Eiglmeier K., Camus J.-C., Medina N., Mansoor H., Pryor M.,
RA   Duthoy S., Grondin S., Lacroix C., Monsempe C., Simon S., Harris B.,
RA   Atkin R., Doggett J., Mayes R., Keating L., Wheeler P.R., Parkhill J.,
RA   Barrell B.G., Cole S.T., Gordon S.V., Hewinson R.G.;
RT   "The complete genome sequence of Mycobacterium bovis.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:7877-7882(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND GENOME REANNOTATION.
RC   STRAIN=ATCC BAA-935 / AF2122/97;
RX   PubMed=28385856; DOI=10.1128/genomea.00157-17;
RA   Malone K.M., Farrell D., Stuber T.P., Schubert O.T., Aebersold R.,
RA   Robbe-Austerman S., Gordon S.V.;
RT   "Updated reference genome sequence and annotation of Mycobacterium bovis
RT   AF2122/97.";
RL   Genome Announc. 5:E00157-E00157(2017).
CC   -!- FUNCTION: Catalyzes the hydrolysis of glutamine to glutamate and
CC       ammonia as part of the biosynthesis of pyridoxal 5'-phosphate. The
CC       resulting ammonia molecule is channeled to the active site of PdxS.
CC       {ECO:0000255|HAMAP-Rule:MF_01615}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=aldehydo-D-ribose 5-phosphate + D-glyceraldehyde 3-phosphate +
CC         L-glutamine = H(+) + 3 H2O + L-glutamate + phosphate + pyridoxal 5'-
CC         phosphate; Xref=Rhea:RHEA:31507, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:29985, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:58273, ChEBI:CHEBI:58359, ChEBI:CHEBI:59776,
CC         ChEBI:CHEBI:597326; EC=4.3.3.6; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01615};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + L-glutamine = L-glutamate + NH4(+);
CC         Xref=Rhea:RHEA:15889, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:29985, ChEBI:CHEBI:58359; EC=3.5.1.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01615};
CC   -!- PATHWAY: Cofactor biosynthesis; pyridoxal 5'-phosphate biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_01615}.
CC   -!- SUBUNIT: In the presence of PdxS, forms a dodecamer of heterodimers.
CC       Only shows activity in the heterodimer. {ECO:0000255|HAMAP-
CC       Rule:MF_01615}.
CC   -!- SIMILARITY: Belongs to the glutaminase PdxT/SNO family.
CC       {ECO:0000255|HAMAP-Rule:MF_01615}.
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DR   EMBL; LT708304; SIU01254.1; -; Genomic_DNA.
DR   RefSeq; NP_856282.1; NC_002945.3.
DR   RefSeq; WP_003413465.1; NC_002945.4.
DR   AlphaFoldDB; Q7TY92; -.
DR   SMR; Q7TY92; -.
DR   EnsemblBacteria; SIU01254; SIU01254; BQ2027_MB2636C.
DR   PATRIC; fig|233413.5.peg.2897; -.
DR   OMA; VFIRAPI; -.
DR   UniPathway; UPA00245; -.
DR   Proteomes; UP000001419; Chromosome.
DR   GO; GO:0004359; F:glutaminase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0036381; F:pyridoxal 5'-phosphate synthase (glutamine hydrolysing) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006543; P:glutamine catabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0042823; P:pyridoxal phosphate biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd01749; GATase1_PB; 1.
DR   Gene3D; 3.40.50.880; -; 1.
DR   HAMAP; MF_01615; PdxT; 1.
DR   InterPro; IPR029062; Class_I_gatase-like.
DR   InterPro; IPR002161; PdxT/SNO.
DR   InterPro; IPR021196; PdxT/SNO_CS.
DR   PANTHER; PTHR31559; PTHR31559; 1.
DR   Pfam; PF01174; SNO; 1.
DR   PIRSF; PIRSF005639; Glut_amidoT_SNO; 1.
DR   SUPFAM; SSF52317; SSF52317; 1.
DR   TIGRFAMs; TIGR03800; PLP_synth_Pdx2; 1.
DR   PROSITE; PS01236; PDXT_SNO_1; 1.
DR   PROSITE; PS51130; PDXT_SNO_2; 1.
PE   3: Inferred from homology;
KW   Glutamine amidotransferase; Hydrolase; Lyase; Pyridoxal phosphate.
FT   CHAIN           1..198
FT                   /note="Pyridoxal 5'-phosphate synthase subunit PdxT"
FT                   /id="PRO_0000135646"
FT   ACT_SITE        81
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT   ACT_SITE        177
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT   ACT_SITE        179
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT   BINDING         49..51
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT   BINDING         113
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT   BINDING         141..142
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
SQ   SEQUENCE   198 AA;  21072 MW;  1B143808EB05CD4F CRC64;
     MSVPRVGVLA LQGDTREHLA ALRECGAEPM TVRRRDELDA VDALVIPGGE STTMSHLLLD
     LDLLGPLRAR LADGLPAYGS CAGMILLASE ILDAGAAGRQ ALPLRAMNMT VRRNAFGSQV
     DSFEGDIEFA GLDDPVRAVF IRAPWVERVG DGVQVLARAA GHIVAVRQGA VLATAFHPEM
     TGDRRIHQLF VDIVTSAA
 
 
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