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Article

Activation of the plasma membrane Na/H antiporter Salt-Overly-Sensitive 1 (SOS1) by phosphorylation of an auto-inhibitory C-terminal domain.

Proceedings of the National Academy of Sciences of the United States of America - 8 Feb 2011

Quintero Francisco J, Martinez-Atienza Juliana, Villalta Irene, Jiang Xingyu, Kim Woe-Yeon, Ali Zhair, Fujii Hiroaki, Mendoza Imelda, Yun Dae-Jin, Zhu Jian-Kang, Pardo Jose M

Abstract excerpt

The plasma membrane sodium/proton exchanger Salt-Overly-Sensitive 1 (SOS1) is a critical salt tolerance determinant in plants. The SOS2-SOS3 calcium-dependent protein kinase complex up-regulates SOS1 activity, but the mechanistic details of this crucial event remain unresolved. Here we show that SOS1 is maintained in a resting state by a C-terminal auto-inhibitory domain that is the target of SOS2-SOS3. The...

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Source

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Identifiers

PMID: 21262798
DOI: 10.1073/pnas.1018921108
PMCID: PMC3038701

Genes

SOS1
SOS2

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Activation of the plasma membrane Na/H antiporter Salt-Overly-Sensitive 1 (SOS1) by phosphorylation of an auto-inhibitory C-terminal domain.PMID 21262798Read ↗

The Arabidopsis thaliana salt tolerance gene SOS1 encodes a putative Na+/H+ antiporter.Semantic proximity Read ↗

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