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PDXT_SALAI
ID   PDXT_SALAI              Reviewed;         201 AA.
AC   A8LWZ5;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   04-DEC-2007, sequence version 1.
DT   03-AUG-2022, entry version 72.
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=Sare_1778;
OS   Salinispora arenicola (strain CNS-205).
OC   Bacteria; Actinobacteria; Micromonosporales; Micromonosporaceae;
OC   Salinispora.
OX   NCBI_TaxID=391037;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CNS-205;
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., Foster B., Schmutz J., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Ivanova N., Jensen P.R., Moore B.S., Penn K., Jenkins C.,
RA   Udwary D., Xiang L., Gontang E., Richardson P.;
RT   "Complete sequence of Salinispora arenicola CNS-205.";
RL   Submitted (OCT-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; CP000850; ABV97665.1; -; Genomic_DNA.
DR   RefSeq; WP_012181970.1; NC_009953.1.
DR   AlphaFoldDB; A8LWZ5; -.
DR   SMR; A8LWZ5; -.
DR   STRING; 391037.Sare_1778; -.
DR   MEROPS; C26.A32; -.
DR   EnsemblBacteria; ABV97665; ABV97665; Sare_1778.
DR   GeneID; 5704520; -.
DR   KEGG; saq:Sare_1778; -.
DR   PATRIC; fig|391037.6.peg.1810; -.
DR   eggNOG; COG0311; Bacteria.
DR   HOGENOM; CLU_069674_2_0_11; -.
DR   OMA; VFIRAPI; -.
DR   OrthoDB; 1628378at2; -.
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..201
FT                   /note="Pyridoxal 5'-phosphate synthase subunit PdxT"
FT                   /id="PRO_1000088055"
FT   ACT_SITE        81
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT   ACT_SITE        180
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT   ACT_SITE        182
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         110
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
FT   BINDING         139..140
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01615"
SQ   SEQUENCE   201 AA;  21299 MW;  5D1071349004D752 CRC64;
     MTAPVIGVLA LQGDVREHTA ALAAAGADAR PVRRPGELDL VDGLVIPGGE STTISRLADV
     FELREPIDKR IADGMPVYGS CAGMIMLASE VLDGRPDQRA FAGIEMTVRR NAFGRQVHSF
     EAPVSVAGID GGPFHVLFIR APWVERVGQG VEVLGTVTEG PAAGRIVAVR QGNLLATSFH
     PELTGDRRLH AYFADLVRAA V
 
 
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