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Protein

Pyridoxal 5'-phosphate synthase subunit PdxT

Gene

pdxT

Organism
Staphylococcus aureus (strain MSSA476)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

Catalyzes the hydrolysis of glutamine to glutamate and ammonia as part of the biosynthesis of pyridoxal 5'-phosphate. The resulting ammonia molecule is channeled to the active site of PdxS.UniRule annotation

Catalytic activityi

D-ribose 5-phosphate + D-glyceraldehyde 3-phosphate + L-glutamine = pyridoxal 5'-phosphate + L-glutamate + 3 H2O + phosphate.UniRule annotation
L-glutamine + H2O = L-glutamate + NH3.UniRule annotation

Pathwayi: pyridoxal 5'-phosphate biosynthesis

This protein is involved in the pathway pyridoxal 5'-phosphate biosynthesis, which is part of Cofactor biosynthesis.UniRule annotation
View all proteins of this organism that are known to be involved in the pathway pyridoxal 5'-phosphate biosynthesis and in Cofactor biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei75NucleophileUniRule annotation1
Binding sitei101L-glutamineUniRule annotation1
Active sitei165Charge relay systemUniRule annotation1
Active sitei167Charge relay systemUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase, Lyase
LigandPyridoxal phosphate

Enzyme and pathway databases

UniPathwayiUPA00245

Names & Taxonomyi

Protein namesi
Recommended name:
Pyridoxal 5'-phosphate synthase subunit PdxTUniRule annotation (EC:4.3.3.6UniRule annotation)
Alternative name(s):
Pdx2UniRule annotation
Pyridoxal 5'-phosphate synthase glutaminase subunitUniRule annotation (EC:3.5.1.2UniRule annotation)
Gene namesi
Name:pdxTUniRule annotation
Ordered Locus Names:SAS0477
OrganismiStaphylococcus aureus (strain MSSA476)
Taxonomic identifieri282459 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesStaphylococcaceaeStaphylococcus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001356591 – 186Pyridoxal 5'-phosphate synthase subunit PdxTAdd BLAST186

Interactioni

Subunit structurei

In the presence of PdxS, forms a dodecamer of heterodimers. Only shows activity in the heterodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliQ6GBW8
SMRiQ6GBW8
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni46 – 48L-glutamine bindingUniRule annotation3
Regioni129 – 130L-glutamine bindingUniRule annotation2

Sequence similaritiesi

Belongs to the glutaminase PdxT/SNO family.UniRule annotation

Keywords - Domaini

Glutamine amidotransferase

Phylogenomic databases

HOGENOMiHOG000039949
KOiK08681
OMAiVFIRAPI

Family and domain databases

CDDicd01749 GATase1_PB, 1 hit
Gene3Di3.40.50.880, 1 hit
HAMAPiMF_01615 PdxT, 1 hit
InterProiView protein in InterPro
IPR029062 Class_I_gatase-like
IPR002161 PdxT/SNO
IPR021196 PdxT/SNO_CS
PANTHERiPTHR31559 PTHR31559, 1 hit
PfamiView protein in Pfam
PF01174 SNO, 1 hit
PIRSFiPIRSF005639 Glut_amidoT_SNO, 1 hit
SUPFAMiSSF52317 SSF52317, 1 hit
TIGRFAMsiTIGR03800 PLP_synth_Pdx2, 1 hit
PROSITEiView protein in PROSITE
PS01236 PDXT_SNO_1, 1 hit
PS51130 PDXT_SNO_2, 1 hit

Sequencei

Sequence statusi: Complete.

Q6GBW8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKIGVLALQG AVREHIRHIE LSGHEGIAVK KVEQLEEIEG LILPGGESTT
60 70 80 90 100
LRRLMNLYGF KEALQNSTLP MFGTCAGLIV LAQDIVGEEG YLNKLNITVQ
110 120 130 140 150
RNSFGRQVDS FETELDIKGI ATDIEGVFIR APHIEKVGQG VDILCKVNEK
160 170 180
IVAVQQGKYL GVSFHPELTD DYRVTDYFIN HIVKKA
Length:186
Mass (Da):20,630
Last modified:July 19, 2004 - v1
Checksum:iFBBCAA090EA74FF7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BX571857 Genomic DNA Translation: CAG42252.1
RefSeqiWP_000690439.1, NC_002953.3

Genome annotation databases

KEGGisas:SAS0477

Similar proteinsi

Entry informationi

Entry nameiPDXT_STAAS
AccessioniPrimary (citable) accession number: Q6GBW8
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 5, 2005
Last sequence update: July 19, 2004
Last modified: November 22, 2017
This is version 74 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health