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    trkG K(+) transporter TrkG [ Escherichia coli str. K-12 substr. MG1655 ]

    Gene ID: 945932, updated on 3-Dec-2024

    Summary

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    Official Symbol
    trkG
    Official Full Name
    K(+) transporter TrkG
    Primary source
    ECOCYC:EG11020
    Locus tag
    b1363
    See related
    ASAP:ABE-0004567
    Gene type
    protein coding
    RefSeq status
    PROVISIONAL
    Organism
    Escherichia coli str. K-12 substr. MG1655 (strain: K-12, substrain: MG1655)
    Lineage
    Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales; Enterobacteriaceae; Escherichia
    Also known as
    ECK1362
    Summary
    Although normally required for Trk activity, overproduction of TrkG or TrkH alone increases K+ transport in a trkA mutant strain (Buurman, 2004). [More information is available at EcoGene: EG11020]. TrkG is a potassium ion transporter, closely related to the TrkH potassium ion transporter. [More information is available at EcoCyc: EG11020].
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    Genomic context

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    Sequence:
    NC_000913.3 (1423782..1425239)

    NC_000913.3Genomic Context describing neighboring genes Neighboring gene putative uncharacterized protein YdaW Neighboring gene pseudo Neighboring gene putative prophage outer membrane lipoprotein RzoR Neighboring gene ParB-like nuclease domain-containing protein YnaK Neighboring gene putative uncharacterized protein YdaY Neighboring gene putative prophage tail length tape measure domain-containing protein YnaA Neighboring gene pseudo

    Genomic regions, transcripts, and products

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    Genomic Sequence:
    NC_000913.3

    Go to nucleotide: Graphics FASTA GenBank

    Bibliography

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    Related articles in PubMed

    1. Two Trk/Ktr/HKT-type potassium transporters, TrkG and TrkH, perform distinct functions in Escherichia coli K-12. Tanudjaja E, et al. J Biol Chem, 2023 Feb. PMID 36586436, Free PMC Article
    2. Characterization and function analysis of a Halo-alkaline-adaptable Trk K+ uptake system in Alkalimonas amylolytica strain N10. Guo Y, et al. Sci China C Life Sci, 2009 Oct. PMID 19911131
    3. [ATPase activity and K+ transport in membranes of anaerobically grown trk-mutants of Escherichia coli]. Trchunian AA, et al. Biokhimiia, 1993 Jul. PMID 8364123
    4. Genetic analysis of potassium transport loci in Escherichia coli: evidence for three constitutive systems mediating uptake potassium. Dosch DC, et al. J Bacteriol, 1991 Jan. PMID 1987159, Free PMC Article
    5. Subcloning, nucleotide sequence, and expression of trkG, a gene that encodes an integral membrane protein involved in potassium uptake via the Trk system of Escherichia coli. Schlösser A, et al. J Bacteriol, 1991 May. PMID 2022616, Free PMC Article

    See all (29) citations in PubMed

    GeneRIFs: Gene References Into Functions

    What's a GeneRIF?
    1. Two Trk/Ktr/HKT-type potassium transporters, TrkG and TrkH, perform distinct functions in Escherichia coli K-12.
      Title: Two Trk/Ktr/HKT-type potassium transporters, TrkG and TrkH, perform distinct functions in Escherichia coli K-12.
    2. Complementation experiments revealed that Aa-TrkA and Aa-TrkH from A. amylolytica strain N10 restored the ability to grow at low K(+) concentration in E. coli DeltatrkA and DeltatrkG DeltatrkH strains, respectively.
      Title: Characterization and function analysis of a Halo-alkaline-adaptable Trk K+ uptake system in Alkalimonas amylolytica strain N10.
    Submit: New GeneRIF Correction

    Interactions

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    Products Interactant Other Gene Complex Source Pubs Description

    General gene information

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    Homology

    Gene Ontology Provided by EcoCyc

    Function Evidence Code Pubs
    enables metal ion binding IEA
    Inferred from Electronic Annotation
    more info
    		  
    enables potassium channel activity ISS
    Inferred from Sequence or Structural Similarity
    more info
    		  
    enables potassium ion binding ISS
    Inferred from Sequence or Structural Similarity
    more info
    		  
    enables potassium ion transmembrane transporter activity EXP
    Inferred from Experiment
    more info
    		 PubMed 
    enables potassium ion transmembrane transporter activity IBA
    Inferred from Biological aspect of Ancestor
    more info
    		  
    enables potassium ion transmembrane transporter activity IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    enables potassium:chloride symporter activity IEA
    Inferred from Electronic Annotation
    more info
    		  
    Process Evidence Code Pubs
    involved_in metal ion transport IEA
    Inferred from Electronic Annotation
    more info
    		  
    involved_in monoatomic ion transmembrane transport IEA
    Inferred from Electronic Annotation
    more info
    		  
    involved_in potassium ion transmembrane transport EXP
    Inferred from Experiment
    more info
    		 PubMed 
    involved_in potassium ion transmembrane transport IBA
    Inferred from Biological aspect of Ancestor
    more info
    		  
    involved_in potassium ion transmembrane transport IEA
    Inferred from Electronic Annotation
    more info
    		  
    involved_in potassium ion transmembrane transport IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    involved_in potassium ion transmembrane transport ISS
    Inferred from Sequence or Structural Similarity
    more info
    		  
    involved_in potassium ion transport IEA
    Inferred from Electronic Annotation
    more info
    		  
    Component Evidence Code Pubs
    located_in membrane IEA
    Inferred from Electronic Annotation
    more info
    		  
    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 

    General protein information

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    Preferred Names
    K(+) transporter TrkG

    NCBI Reference Sequences (RefSeq)

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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
      1423782..1425239
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NP_415881.1 K(+) transporter TrkG [Escherichia coli str. K-12 substr. MG1655]

      See identical proteins and their annotated locations for NP_415881.1

      Status: PROVISIONAL

      UniProtKB/TrEMBL
      A0A6L7CAH4
      Conserved Domains (1) summary
      pfam02386
      Location:51 → 485
      TrkH; Cation transport protein
    Nucleotide Protein
    Heading Accession and Version

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