PDXT_MYCSJ
ID PDXT_MYCSJ Reviewed; 206 AA.
AC A3PYU8;
DT 26-JUN-2007, integrated into UniProtKB/Swiss-Prot.
DT 03-APR-2007, sequence version 1.
DT 03-AUG-2022, entry version 78.
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}; OrderedLocusNames=Mjls_2289;
OS Mycobacterium sp. (strain JLS).
OC Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC Mycobacterium; unclassified Mycobacterium.
OX NCBI_TaxID=164757;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JLS;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Mikhailova N., Miller C.D., Anderson A.J.,
RA Sims R.C., Richardson P.;
RT "Complete sequence of Mycobacterium sp. JLS.";
RL Submitted (FEB-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000580; ABN98075.1; -; Genomic_DNA.
DR AlphaFoldDB; A3PYU8; -.
DR SMR; A3PYU8; -.
DR STRING; 164757.Mjls_2289; -.
DR MEROPS; C26.A32; -.
DR KEGG; mjl:Mjls_2289; -.
DR HOGENOM; CLU_069674_2_0_11; -.
DR OMA; VFIRAPI; -.
DR BioCyc; MSP164757:G1G8C-2308-MON; -.
DR UniPathway; UPA00245; -.
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..206
FT /note="Pyridoxal 5'-phosphate synthase subunit PdxT"
FT /id="PRO_0000293005"
FT ACT_SITE 91
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT ACT_SITE 187
FT /note="Charge relay system"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT ACT_SITE 189
FT /note="Charge relay system"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT BINDING 59..61
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT BINDING 123
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT BINDING 151..152
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
SQ SEQUENCE 206 AA; 22130 MW; ECFF7C749E109D6E CRC64;
MNAVPDGRSD KPRSVVGVLA LQGDTREHLA ALTEAGAEAV TVRRLRELEA VDALVIPGGE
STAMSHLLRE FELLEPLRAR LAEGMPAYGS CAGMILLATE ILDAGAAGRE ATPLKGIDMS
VRRNAFGRQV DSFEGDIPFV GLDSSVHAVF IRAPWVERIG DGVEVLARAD GHIVAVRQGR
MLATAFHPEV TGDRRVHKLF VDMVSE
