Na+/H+ antiporter, sodium/hydrogen exchanger
AS09 484 | Clonality: Polyclonal | Host: Rabbit | Reactivity: Arabidopsis thaliana
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KLH-conjugated synthetic peptide derived from Arabidopsis thaliana NHX protein UniProt: Q68KI4, TAIR: At5g27150; chosen peptide is perfectly confirmed in AtNHX1 UniProt: Q0WVZ5, partially in AtNHX2, UniProt: Q56XP4, and not conserved in AtNHX3, UniProt: Q84WG1 and AtNHX4, UniProt:Q8S397 isoforms
59.5 | 45 kDa
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Mangrove plants, Nicotiana benthamiana, sp. Avicennia,
1 µg and 10 µg of crude membrane fraction/lane from Arabidopsis thaliana (left panel)and1,5 and 10 µg of crude membrane fraction/lane Raphanus sativus L.(right panel)were separated on 12 % SDS-PAGE and blotted 1h to PVDF membrane (40 min. at 10 V using BioRad semidry transfer). Filters were blocked 1h with 5 % low-fat milk powder in TBS-T (0.05% Triton X.100). Membranes were washed 5 times with TBS-T, each time in a fresh polystyrene box and probed with anti-NHX antibodies (AS09 484, 1:1000, 1h) and secondary anti-rabbit (1:2000, 1 h). Detection was done using chemiluminescence. All steps were performed in RT with agitation.
Protocol for vacuolar membrane isolation can be found here.
Na(+)/H(+) exchanger 1 protein is involved in exchange of protons for cations such as sodium and potassium across membranes. Localized in tonoplast, possibly also to ER and Golgi. Alternative name: NHE-1, Na(+)/H(+) exchanger 1
Prinsi et al. (2020). Root Proteomic Analysis of Two Grapevine Rootstock Genotypes Showing Different Susceptibility to Salt Stress. Int J Mol Sci. 2020 Feb 6;21(3). pii: E1076. doi: 10.3390/ijms21031076.
Guo et al. (2018). Molecular Characterization of a Tonoplast Na+/H+ Antiporter from Iris Lactea. Preprints 2018, 2018090557 (doi: 10.20944/preprints201809.0557.v1).
Kumari et al. (2017), Overexpression of a Plasma Membrane Bound Na+/H+ Antiporter-Like Protein (SbNHXLP) Confers Salt Tolerance and Improves Fruit Yield in Tomato by Maintaining Ion Homeostasis. Front Plant Sci. 2017 Jan 6;7:2027. doi: 10.3389/fpls.2016.02027.
Chen et al. (2013). Nitric Oxide Mediates Root K+/Na+ Balance in a Mangrove Plant, Kandelia obovata, by Enhancing the Expression of AKT1-Type K+ Channel and Na+/H+ Antiporter under High Salinity. 8(8): e71543. doi:10.1371/journal.pone.0071543.
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