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potB spermidine preferential ABC transporter membrane subunit PotB [ Escherichia coli str. K-12 substr. MG1655 ]

Gene ID: 945692, updated on 30-Jul-2025
Official Symbol
potB
Official Full Name
spermidine preferential ABC transporter membrane subunit PotB
Primary source
ECOCYC:EG10750
Locus tag
b1125
See related
ASAP:ABE-0003794
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
ECK1111
Summary
PotBCAD spermidine/putrescine ABC transport system. [More information is available at EcoGene: EG10750]. PotABCD is an ATP-dependent polyamine transporter that is a member of the ATP-Binding Cassette (ABC) Superfamily of transporters . [More information is available at EcoCyc: EG10750].
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Sequence:
NC_000913.3 (1183617..1184444, complement)

NC_000913.3Genomic Context describing neighboring genes Neighboring gene putative inner membrane protein YcfZ Neighboring gene putative inner membrane protein YmfA Neighboring gene spermidine preferential ABC transporter periplasmic binding protein Neighboring gene spermidine preferential ABC transporter membrane subunit PotC Neighboring gene spermidine preferential ABC transporter ATP binding subunit Neighboring gene peptidase T

Genomic Sequence:
NC_000913.3

Go to nucleotide: Graphics FASTA GenBank

Related articles in PubMed

  1. Effects of ethyl and benzyl analogues of spermine on Escherichia coli peptidyltransferase activity, polyamine transport, and cellular growth. Karahalios P, et al. J Bacteriol, 1999 Jul. PMID 10383956, Free PMC Article
  2. Characteristics of the gene for a spermidine and putrescine transport system that maps at 15 min on the Escherichia coli chromosome. Furuchi T, et al. J Biol Chem, 1991 Nov 5. PMID 1939142
  3. Physical mapping of the Escherichia coli pepT and potABCD genes. Lombardo MJ, et al. J Bacteriol, 1993 Dec. PMID 8244951, Free PMC Article
  4. Dependence of swarming in Escherichia coli K-12 on spermidine and the spermidine importer. Kurihara S, et al. FEMS Microbiol Lett, 2009 May. PMID 19493013
  5. [Polyamine transport in Escherichia coli and eukaryotic cells]. Kashiwagi K. Yakugaku Zasshi, 1996 Mar. PMID 8721347

See all (17) citations in PubMed

GeneRIFs: Gene References Into Functions

Products Interactant Other Gene Complex Source Pubs Description

Gene Ontology Provided by EcoCyc

Function Evidence Code Pubs
enables ABC-type polyamine transporter activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables ABC-type polyamine transporter activity IDA
Inferred from Direct Assay
more info
 PubMed 
Process Evidence Code Pubs
acts_upstream_of_or_within putrescine transport IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in putrescine transport NAS
Non-traceable Author Statement
more info
 PubMed 
acts_upstream_of_or_within spermidine transmembrane transport EXP
Inferred from Experiment
more info
 PubMed 
involved_in spermidine transmembrane transport IBA
Inferred from Biological aspect of Ancestor
more info
  
acts_upstream_of_or_within spermidine transmembrane transport IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in spermidine transmembrane transport NAS
Non-traceable Author Statement
more info
 PubMed 
involved_in transmembrane transport IEA
Inferred from Electronic Annotation
more info
  
Component Evidence Code Pubs
part_of ATP-binding cassette (ABC) transporter complex TAS
Traceable Author Statement
more info
 PubMed 
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
  
located_in plasma membrane ISM
Inferred from Sequence Model
more info
 PubMed 
Preferred Names
spermidine preferential ABC transporter membrane subunit PotB
NP_415643.3

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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
    1183617..1184444 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NP_415643.3 spermidine preferential ABC transporter membrane subunit PotB

    See identical proteins and their annotated locations for NP_415643.3

    Status: REVIEWED

    UniProtKB/TrEMBL
    Q9S1B3
    Conserved Domains (1) summary
    PRK09497
    Location:1 → 275
    potB; spermidine/putrescine ABC transporter membrane protein; Reviewed
Nucleotide Protein
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