ID H1Q0T5_9BACT Unreviewed; 194 AA.
AC H1Q0T5;
DT 21-MAR-2012, integrated into UniProtKB/TrEMBL.
DT 21-MAR-2012, sequence version 1.
DT 24-JAN-2024, entry version 50.
DE RecName: Full=Pyridoxal 5'-phosphate synthase subunit PdxT {ECO:0000256|HAMAP-Rule:MF_01615};
DE EC=4.3.3.6 {ECO:0000256|HAMAP-Rule:MF_01615};
DE AltName: Full=Pdx2 {ECO:0000256|HAMAP-Rule:MF_01615};
DE AltName: Full=Pyridoxal 5'-phosphate synthase glutaminase subunit {ECO:0000256|HAMAP-Rule:MF_01615};
DE EC=3.5.1.2 {ECO:0000256|HAMAP-Rule:MF_01615};
GN Name=pdxT {ECO:0000256|HAMAP-Rule:MF_01615};
GN ORFNames=HMPREF9140_00523 {ECO:0000313|EMBL:EHO72763.1};
OS Prevotella micans F0438.
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Prevotellaceae;
OC Prevotella.
OX NCBI_TaxID=883158 {ECO:0000313|EMBL:EHO72763.1, ECO:0000313|Proteomes:UP000016023};
RN [1] {ECO:0000313|EMBL:EHO72763.1, ECO:0000313|Proteomes:UP000016023}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=F0438 {ECO:0000313|EMBL:EHO72763.1,
RC ECO:0000313|Proteomes:UP000016023};
RG The Broad Institute Genome Sequencing Platform;
RA Earl A., Ward D., Feldgarden M., Gevers D., Izard J., Baranova O.V.,
RA Blanton J.M., Wade W.G., Dewhirst F.E., Young S.K., Zeng Q., Gargeya S.,
RA Fitzgerald M., Haas B., Abouelleil A., Alvarado L., Arachchi H.M.,
RA Berlin A., Chapman S.B., Gearin G., Goldberg J., Griggs A., Gujja S.,
RA Hansen M., Heiman D., Howarth C., Larimer J., Lui A., MacDonald P.J.P.,
RA McCowen C., Montmayeur A., Murphy C., Neiman D., Pearson M., Priest M.,
RA Roberts A., Saif S., Shea T., Sisk P., Stolte C., Sykes S., Wortman J.,
RA Nusbaum C., Birren B.;
RT "The Genome Sequence of Prevotella micans F0438.";
RL Submitted (DEC-2011) 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:0000256|HAMAP-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:0000256|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:0000256|HAMAP-
CC Rule:MF_01615};
CC -!- PATHWAY: Cofactor biosynthesis; pyridoxal 5'-phosphate biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_01615}.
CC -!- SUBUNIT: In the presence of PdxS, forms a dodecamer of heterodimers.
CC Only shows activity in the heterodimer. {ECO:0000256|HAMAP-
CC Rule:MF_01615}.
CC -!- SIMILARITY: Belongs to the glutaminase PdxT/SNO family.
CC {ECO:0000256|ARBA:ARBA00008345, ECO:0000256|HAMAP-Rule:MF_01615}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EHO72763.1}.
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DR EMBL; AGWK01000018; EHO72763.1; -; Genomic_DNA.
DR RefSeq; WP_006951559.1; NZ_JH594521.1.
DR AlphaFoldDB; H1Q0T5; -.
DR STRING; 883158.HMPREF9140_00523; -.
DR PATRIC; fig|883158.3.peg.536; -.
DR eggNOG; COG0311; Bacteria.
DR HOGENOM; CLU_069674_2_0_10; -.
DR UniPathway; UPA00245; -.
DR Proteomes; UP000016023; Unassembled WGS sequence.
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 NCBIfam; TIGR03800; PLP_synth_Pdx2; 1.
DR PANTHER; PTHR31559; PYRIDOXAL 5'-PHOSPHATE SYNTHASE SUBUNIT SNO; 1.
DR PANTHER; PTHR31559:SF0; PYRIDOXAL 5'-PHOSPHATE SYNTHASE SUBUNIT SNO1-RELATED; 1.
DR Pfam; PF01174; SNO; 1.
DR PIRSF; PIRSF005639; Glut_amidoT_SNO; 1.
DR SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 1.
DR PROSITE; PS51273; GATASE_TYPE_1; 1.
DR PROSITE; PS01236; PDXT_SNO_1; 1.
DR PROSITE; PS51130; PDXT_SNO_2; 1.
PE 3: Inferred from homology;
KW Glutamine amidotransferase {ECO:0000256|HAMAP-Rule:MF_01615,
KW ECO:0000256|PROSITE-ProRule:PRU00605};
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_01615};
KW Lyase {ECO:0000256|HAMAP-Rule:MF_01615};
KW Pyridoxal phosphate {ECO:0000256|HAMAP-Rule:MF_01615};
KW Reference proteome {ECO:0000313|Proteomes:UP000016023}.
FT ACT_SITE 79
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01615,
FT ECO:0000256|PIRSR:PIRSR005639-1"
FT ACT_SITE 172
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 172
FT /note="Charge relay system"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01615,
FT ECO:0000256|PIRSR:PIRSR005639-1"
FT ACT_SITE 174
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 174
FT /note="Charge relay system"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01615,
FT ECO:0000256|PIRSR:PIRSR005639-1"
FT BINDING 47..49
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01615,
FT ECO:0000256|PIRSR:PIRSR005639-2"
FT BINDING 108
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01615,
FT ECO:0000256|PIRSR:PIRSR005639-2"
FT BINDING 136..137
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01615,
FT ECO:0000256|PIRSR:PIRSR005639-2"
SQ SEQUENCE 194 AA; 21617 MW; 87ECE7BDC7F9C60A CRC64;
MNIAVLALQG AFVEHRQMLR GLGAETFEIR QPDDWNKPKD ALIIPGGEST VMLKLLHELG
LFQPIRQAIV EGLPVFGTCA GLILLSQQLE NARSPYTRFA TMNITTCRNA YGRQLGSFFA
KAPFKGIDHD VPMTFIRAPY IEQASEQVEI LAEIGGHIVA ARQDNQLVTA FHPELNNDAS
IHAYFIEMIK NNLK
//
