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Protein

Pyridoxal 5'-phosphate synthase subunit PdxT

Gene

pdxT

Organism
Streptococcus pneumoniae (strain ATCC 700669 / Spain 23F-1)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-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 sitei82NucleophileUniRule annotation1
Binding sitei109L-glutamineUniRule annotation1
Active sitei172Charge relay systemUniRule annotation1
Active sitei174Charge 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:SPN23F14310
OrganismiStreptococcus pneumoniae (strain ATCC 700669 / Spain 23F-1)
Taxonomic identifieri561276 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10001859041 – 193Pyridoxal 5'-phosphate synthase subunit PdxTAdd BLAST193

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

ProteinModelPortaliB8ZL13.
SMRiB8ZL13.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni50 – 52L-glutamine bindingUniRule annotation3
Regioni136 – 137L-glutamine bindingUniRule annotation2

Sequence similaritiesi

Belongs to the glutaminase PdxT/SNO family.UniRule annotation

Keywords - Domaini

Glutamine amidotransferase

Phylogenomic databases

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.
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.

B8ZL13-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKIGILALQG AFAEHAKVLD QLGVESVELR NLDDFQQDQS DLSGLILPGG
60 70 80 90 100
ESTTMGKLLR DQNMLLPIRE AILSGLPVFG TCAGLILLAK EITSQKESHL
110 120 130 140 150
GTMDMVVERN AYGRQLGSFY TEAECKGVGK IPMTFIRGPI ISSVGEGVEI
160 170 180 190
LATVNNQIVA AQEKNMLVSS FHPELTDDVR LHQYFINMCK EKS
Length:193
Mass (Da):21,094
Last modified:March 3, 2009 - v1
Checksum:i135F3A27477734F7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
FM211187 Genomic DNA. Translation: CAR69222.1.
RefSeqiWP_000689945.1. NC_011900.1.

Genome annotation databases

EnsemblBacteriaiCAR69222; CAR69222; SPN23F14310.
KEGGisne:SPN23F14310.

Similar proteinsi

Entry informationi

Entry nameiPDXT_STRPJ
AccessioniPrimary (citable) accession number: B8ZL13
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: March 3, 2009
Last modified: June 7, 2017
This is version 58 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families