PDXT_BREBN
ID PDXT_BREBN Reviewed; 191 AA.
AC C0ZH53;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 26-MAY-2009, sequence version 1.
DT 03-AUG-2022, entry version 71.
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=BBR47_00170;
OS Brevibacillus brevis (strain 47 / JCM 6285 / NBRC 100599).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Paenibacillaceae; Brevibacillus.
OX NCBI_TaxID=358681;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=47 / JCM 6285 / NBRC 100599;
RA Hosoyama A., Yamada R., Hongo Y., Terui Y., Ankai A., Masuyama W.,
RA Sekiguchi M., Takeda T., Asano K., Ohji S., Ichikawa N., Narita S.,
RA Aoki N., Miura H., Matsushita S., Sekigawa T., Yamagata H., Yoshikawa H.,
RA Udaka S., Tanikawa S., Fujita N.;
RT "Brevibacillus brevis strain 47, complete genome.";
RL Submitted (MAR-2005) 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; AP008955; BAH40994.1; -; Genomic_DNA.
DR RefSeq; WP_012683799.1; NC_012491.1.
DR AlphaFoldDB; C0ZH53; -.
DR SMR; C0ZH53; -.
DR STRING; 358681.BBR47_00170; -.
DR MEROPS; C26.A32; -.
DR PRIDE; C0ZH53; -.
DR EnsemblBacteria; BAH40994; BAH40994; BBR47_00170.
DR KEGG; bbe:BBR47_00170; -.
DR eggNOG; COG0311; Bacteria.
DR HOGENOM; CLU_069674_2_0_9; -.
DR OMA; VFIRAPI; -.
DR OrthoDB; 1628378at2; -.
DR UniPathway; UPA00245; -.
DR Proteomes; UP000001877; 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;
KW Reference proteome.
FT CHAIN 1..191
FT /note="Pyridoxal 5'-phosphate synthase subunit PdxT"
FT /id="PRO_1000185879"
FT ACT_SITE 78
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT ACT_SITE 169
FT /note="Charge relay system"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT ACT_SITE 171
FT /note="Charge relay system"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT BINDING 46..48
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT BINDING 105
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT BINDING 133..134
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
SQ SEQUENCE 191 AA; 21160 MW; 8C87FA9B4E791A41 CRC64;
MKIGVLALQG AVAEHLRMLE EVGATAVPVK RVEELDDLDG LVIPGGESTT ISKLMHKYGF
MEAVQEFGKA NKPIFGTCAG AILLAKRIQG QDDYHLGLMD IKVERNAFGR QKESFEVLMP
VADVGADYPA VFIRAPYIME VGENGQVLAK HEDKIVVARS GHYLAAAFHP ELTEDTRLHK
YFLDMVKEYR S
