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

Gene ID: 824539, updated on 18-Sep-2024

Summary

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Official Symbol
CHX20
Official Full Name
cation/H+ exchanger 20
Primary source
TAIR:AT3G53720
Locus tag
AT3G53720
See related
Araport: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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See CHX20 in Genome Data Viewer
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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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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