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pstB phosphate ABC transporter ATP binding subunit [ Escherichia coli str. K-12 substr. MG1655 ]

Gene ID: 948240, updated on 4-Feb-2026
Official Symbol
pstB
Official Full Name
phosphate ABC transporter ATP binding subunit
Primary source
ECOCYC:EG10783
Locus tag
b3725
See related
ASAP:ABE-0012179
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Escherichia coli str. K-12 substr. MG1655 (strain: K-12, substrain: MG1655)
Lineage
Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria; Enterobacterales; Enterobacteriaceae; Escherichia
Also known as
ECK3718; phoT
Summary
PstABCS is an ATP-dependent phosphate uptake system that is a member of the ATP-Binding Cassette (ABC) Superfamily of transporters . [More information is available at EcoCyc: EG10783].
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Sequence:
NC_000913.3 (3907593..3908366, complement)

NC_000913.3Genomic Context describing neighboring genes Neighboring gene transcriptional antiterminator BglG Neighboring gene negative regulator of the pho regulon Neighboring gene phosphate ABC transporter membrane subunit PstA Neighboring gene phosphate ABC transporter membrane subunit PstC Neighboring gene phosphate ABC transporter periplasmic binding protein

Genomic Sequence:
NC_000913.3

Go to nucleotide: Graphics FASTA GenBank

Related articles in PubMed

  1. The effect of the locus pstB on phosphate binding in the phosphate specific transport (PST) system of Escherichia coli. Levitz R, et al. Mol Gen Genet, 1985. PMID 3897789
  2. Photoaffinity labeling with UMP of lysine 992 of carbamyl phosphate synthetase from Escherichia coli allows identification of the binding site for the pyrimidine inhibitor. Cervera J, et al. Biochemistry, 1996 Jun 4. PMID 8679554
  3. PstB protein of the phosphate-specific transport system of Escherichia coli is an ATPase. Chan FY, et al. J Bacteriol, 1996 Jul. PMID 8682808, Free PMC Article
  4. Specific amino acid residues in both the PstB and PstC proteins are required for phosphate transport by the Escherichia coli Pst system. Cox GB, et al. J Bacteriol, 1989 Mar. PMID 2646285, Free PMC Article
  5. From cell membrane to nucleotides: the phosphate regulon in Escherichia coli. Torriani A. Bioessays, 1990 Aug. PMID 2241934

See all (28) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. PhoU interacts with PhoR, PstB, and metals to form a phosphate-signaling complex at the membrane.
    Title: The PhoU protein from Escherichia coli interacts with PhoR, PstB, and metals to form a phosphate-signaling complex at the membrane.
Submit: New GeneRIF Correction
Products Interactant Other Gene Complex Source Pubs Description

Homology

Gene Ontology Provided by EcoCyc

Function Evidence Code Pubs
enables ATP binding IEA
Inferred from Electronic Annotation
more info
  
enables ATP binding ISM
Inferred from Sequence Model
more info
 PubMed 
enables ATP hydrolysis activity IEA
Inferred from Electronic Annotation
more info
  
enables ATPase-coupled phosphate ion transmembrane transporter activity IEA
Inferred from Electronic Annotation
more info
  
enables nucleotide binding IEA
Inferred from Electronic Annotation
more info
  
enables phosphate transmembrane transporter activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables phosphate transmembrane transporter activity IDA
Inferred from Direct Assay
more info
 PubMed 
enables phosphate transmembrane transporter activity IEA
Inferred from Electronic Annotation
more info
  
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
involved_in phosphate ion transmembrane transport IBA
Inferred from Biological aspect of Ancestor
more info
  
acts_upstream_of_or_within phosphate ion transmembrane transport IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in phosphate ion transmembrane transport IEA
Inferred from Electronic Annotation
more info
  
acts_upstream_of_or_within phosphate ion transmembrane transport IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in phosphate ion transmembrane transport NAS
Non-traceable Author Statement
more info
 PubMed 
acts_upstream_of_or_within phosphate ion transport IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in phosphate ion transport IEA
Inferred from Electronic Annotation
more info
  
Component Evidence Code Pubs
located_in membrane IEA
Inferred from Electronic Annotation
more info
  
located_in membrane NAS
Non-traceable Author Statement
more info
 PubMed 
is_active_in plasma membrane IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in plasma membrane IDA
Inferred from Direct Assay
more info
 PubMed 
located_in plasma membrane IEA
Inferred from Electronic Annotation
more info
  
Preferred Names
phosphate ABC transporter ATP binding subunit
NP_418181.1

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

  1. NC_000913.3 Reference assembly

    Range
    3907593..3908366 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NP_418181.1 phosphate ABC transporter ATP binding subunit

    See identical proteins and their annotated locations for NP_418181.1

    Status: REVIEWED

    UniProtKB/TrEMBL
    A0A377KGJ5, A0A6L7CPN4, A0AAV3H1L6
    Conserved Domains (1) summary
    PRK10744
    Location:1 → 257
    pstB; phosphate ABC transporter ATP-binding protein PstB
Nucleotide Protein
Heading Accession and Version

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