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Protein

Pyridoxal 5'-phosphate synthase subunit PdxT

Gene

pdxT

Organism
Sulfolobus islandicus (strain M.16.27)
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 sitei84NucleophileUniRule annotation1
Binding sitei116L-glutamineUniRule annotation1
Active sitei181Charge relay systemUniRule annotation1
Active sitei183Charge relay systemUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase, Lyase
LigandPyridoxal phosphate

Enzyme and pathway databases

BioCyciSISL427318:GH3D-1733-MONOMER.
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:M1627_1674
OrganismiSulfolobus islandicus (strain M.16.27)
Taxonomic identifieri427318 [NCBI]
Taxonomic lineageiArchaeaCrenarchaeotaThermoproteiSulfolobalesSulfolobaceaeSulfolobus
Proteomesi
  • UP000002307 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10002157211 – 200Pyridoxal 5'-phosphate synthase subunit PdxTAdd BLAST200

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

ProteinModelPortaliC3N6C7.
SMRiC3N6C7.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni52 – 54L-glutamine bindingUniRule annotation3
Regioni145 – 146L-glutamine bindingUniRule annotation2

Sequence similaritiesi

Belongs to the glutaminase PdxT/SNO family.UniRule annotation

Keywords - Domaini

Glutamine amidotransferase

Phylogenomic databases

HOGENOMiHOG000039949.
KOiK08681.
OMAiVFIRAPI.
OrthoDBiPOG093Z0AY8.

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.

C3N6C7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKIGIIAYQG SFEEHYLQLK RAFDKLSING EITPVKIPKD LKDIDGVIIP
60 70 80 90 100
GGESTTIGLV AKRLGILDEL KEKITSGLPV MGTCAGAIML AKEVSDAKVG
110 120 130 140 150
KTSQPLIGAM NISIIRNYYG RQRESFEAII DLSKIGKGKA NVVFIRAPAI
160 170 180 190 200
TKLWGKAQSL AELNGVTVLA EENNILATTF HPELSDTTSI HEYFLHLVKG
Length:200
Mass (Da):21,720
Last modified:June 16, 2009 - v1
Checksum:iD76A1FB013D09287
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001401 Genomic DNA. Translation: ACP55552.1.
RefSeqiWP_012711552.1. NC_012632.1.

Genome annotation databases

EnsemblBacteriaiACP55552; ACP55552; M1627_1674.
GeneIDi7814665.
KEGGisim:M1627_1674.

Similar proteinsi

Entry informationi

Entry nameiPDXT_SULIA
AccessioniPrimary (citable) accession number: C3N6C7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: September 22, 2009
Last sequence update: June 16, 2009
Last modified: November 22, 2017
This is version 47 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

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