Gene Details:

• Gene ID: AT2G31910
• Gene Symbol: ATCHX21, CHX21
• Gene Name: cation/H+ exchanger 21, cation/H+ exchanger 21
• Description: cation/H+ exchanger 21;(source:Araport11)
• TAIR Accession: locus:2045283
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT2G31910.1     AT2G31910.3     AT2G31910.2

Plant Ontology Annotations:

• PO:0009005  — root — raíz (Spanish, exact), radices (exact, plural), radix (exact), 根 (Japanese, exact), aerial root (narrow), climbing root (narrow)
• PO:0009025  — vascular leaf — foliage leaf (exact), hoja vascular (Spanish, exact), leaf, vascular (exact), vascular leaves (exact, plural), 維管束のある葉, または維管束植物の葉 (Japanese, exact), crozier (related), macrophyll (related), megaphyll (related), ascidia (narrow), ascidium (narrow), fiddlehead (narrow), frond (narrow), needle-like leaf (narrow), pitcher (narrow), pitcher blade (narrow), pitcher-blade (narrow), scale-like leaf (narrow), sterile frond (narrow), trophophyll (narrow)
• PO:0025281  — pollen — polen (Spanish, exact), pollen grain (exact), 花粉 (Japanese, exact)
• PO:0025195  — pollen tube cell — célula del tubo polínico (Spanish, exact), 花粉管細胞 (Japanese, exact)

Gene Ontology:

• GO:0012505  — is active in — endomembrane system
• GO:0010183  — acts upstream of or within — pollen tube guidance
• GO:0015385  — enables — sodium:proton antiporter activity
• GO:1902600  — involved in — proton transmembrane transport
• GO:0006885  — involved in — regulation of pH
• GO:0015297  — enables — antiporter activity

Function-related keywords:

• root ,  vascular leaf ,  pollen ,  pollen tube cell

Literature:

• Expression patterns of a novel AtCHX gene family highlight potential roles in osmotic adjustment and K+ homeostasis in pollen development.   DOI:  10.1104/pp.104.046003 ;  PMID:  15347787
• Characterization of AtCHX17, a member of the cation/H+ exchangers, CHX family, from Arabidopsis thaliana suggests a role in K+ homeostasis.   DOI:  10.1111/j.1365-313X.2004.02177.x ;  PMID:  15341627
• cGMP modulates gene transcription and cation transport in Arabidopsis roots.   DOI:  10.1111/j.1365-313X.2005.02616.x ;  PMID:  16460505
• Transcriptome analyses show changes in gene expression to accompany pollen germination and tube growth in Arabidopsis.   DOI:  10.1104/pp.108.126375 ;  PMID:  18775970
• Pollen tubes lacking a pair of K+ transporters fail to target ovules in Arabidopsis.   DOI:  10.1105/tpc.110.080499 ;  PMID:  21239645
• The roles of the cation transporters CHX21 and CHX23 in the development of Arabidopsis thaliana.   DOI:  10.1093/jxb/err271 ;  PMID:  21976771
• RETRACTION: The roles of the cation transporters CHX21 and CHX23 in the development of Arabidopsis thaliana.   DOI:  10.1093/jxb/eraa530 ;  PMID:  33428752
• Functional analysis of CHX21: a putative sodium transporter in Arabidopsis.   DOI:  10.1093/jxb/erj092 ;  PMID:  16513816

Sequences: