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    CHX20 cation/H+ exchanger 20 [ Arabidopsis thaliana (thale cress) ]

    Gene ID: 824539, updated on 7-Sep-2023

    Summary

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    Gene symbol
    CHX20
    Gene description
    cation/H+ exchanger 20
    Primary source
    Araport:AT3G53720
    Locus tag
    AT3G53720
    Gene type
    protein coding
    RefSeq status
    REVIEWED
    Organism
    Arabidopsis thaliana (ecotype: Columbia)
    Lineage
    Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
    Also known as
    ATCHX20; cation/H+ exchanger 20
    Summary
    member of Putative Na+/H+ antiporter family. Involved in the osmoregulation through K(+) fluxes and possibly pH modulation of an active endomembrane system in guard cells.
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    Genomic context

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    Location:
    chromosome: 3
    Exon count:
    5
    Sequence:
    Chromosome: 3; NC_003074.8 (19905591..19910244, complement)

    Chromosome 3 - NC_003074.8Genomic Context describing neighboring genes Neighboring gene Pentatricopeptide repeat (PPR) superfamily protein Neighboring gene ARF-GAP domain 6 Neighboring gene Histone superfamily protein Neighboring gene Ribosomal protein L36e family protein

    Genomic regions, transcripts, and products

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    Genomic Sequence:
    NC_003074.8

    Go to nucleotide: Graphics FASTA GenBank

    Bibliography

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    Related articles in PubMed

    1. Participation of endomembrane cation/H+ exchanger AtCHX20 in osmoregulation of guard cells. Padmanaban S, et al. Plant Physiol, 2007 May. PMID 17337534, Free PMC Article
    2. Expression patterns of a novel AtCHX gene family highlight potential roles in osmotic adjustment and K+ homeostasis in pollen development. Sze H, et al. Plant Physiol, 2004 Sep. PMID 15347787, Free PMC Article
    3. Plant-specific cation/H+ exchanger 17 and its homologs are endomembrane K+ transporters with roles in protein sorting. Chanroj S, et al. J Biol Chem, 2011 Sep 30. PMID 21795714, Free PMC Article
    4. A membrane protein/signaling protein interaction network for Arabidopsis version AMPv2. Lalonde S, et al. Front Physiol, 2010. PMID 21423366, Free PMC Article
    5. Border control--a membrane-linked interactome of Arabidopsis. Jones AM, et al. Science, 2014 May 16. PMID 24833385

    See all (6) citations in PubMed

    GeneRIFs: Gene References Into Functions

    What's a GeneRIF?
    1. CHX20 is preferentially and highly expressed in guard cells
      Title: Participation of endomembrane cation/H+ exchanger AtCHX20 in osmoregulation of guard cells.
    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

    NM_001339628.1
    NM_115232.3

    Gene Ontology Provided by TAIR

    Function Evidence Code Pubs
    enables antiporter activity IEA
    Inferred from Electronic Annotation
    more info
    		  
    enables sodium:proton antiporter activity ISS
    Inferred from Sequence or Structural Similarity
    more info
    		  
    Process Evidence Code Pubs
    acts_upstream_of_or_within intracellular potassium ion homeostasis IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    acts_upstream_of_or_within protein targeting to vacuole IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    involved_in proton transmembrane transport IEA
    Inferred from Electronic Annotation
    more info
    		  
    acts_upstream_of_or_within regulation of pH IMP
    Inferred from Mutant Phenotype
    more info
    		 PubMed 
    Component Evidence Code Pubs
    located_in chloroplast ISM
    Inferred from Sequence Model
    more info
    		  
    located_in endomembrane system IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in endoplasmic reticulum IDA
    Inferred from Direct Assay
    more info
    		 PubMed 

    General protein information

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    Preferred Names
    cation/H+ exchanger 20
    NP_190940.1
    • cation/H+ exchanger 20 (CHX20); CONTAINS InterPro DOMAIN/s: Cation/H+ exchanger (InterPro:IPR006153); BEST Arabidopsis thaliana protein match is: cation/H+ exchanger 18 (TAIR:AT5G41610.1); Has 10038 Blast hits to 10006 proteins in 2135 species: Archae - 380; Bacteria - 7898; Metazoa - 11; Fungi - 167; Plants - 678; Viruses - 0; Other Eukaryotes - 904 (source: NCBI BLink).

    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_003074.8 Reference assembly

      Range
      19905591..19910244 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_115232.3 → NP_190940.1  cation/H+ exchanger 20 [Arabidopsis thaliana]

      See identical proteins and their annotated locations for NP_190940.1

      Status: REVIEWED

      UniProtKB/Swiss-Prot
      Q58P63, Q9M353
      UniProtKB/TrEMBL
      A0A178V9C6, A0A5S9XKN3, A0A654FFI2
      Conserved Domains (1) summary
      PLN03159
      Location:11 → 815
      PLN03159; cation/H(+) antiporter 15; Provisional

    2. NM_001339628.1 → NP_001325440.1  cation/H+ exchanger 20 [Arabidopsis thaliana]

      Status: REVIEWED

      UniProtKB/TrEMBL
      A0A1I9LL89, A0A5S9XKN3, A0A654FFI2
    Nucleotide Protein
    Heading Accession and Version
    Protein Accession Links
    GenPept Link UniProtKB Link
    Q9M353.1

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