Protein S-acylation controls the subcellular localization and biological activity of PHYTOCHROME KINASE SUBSTRATE.

ABSTRACT: PHYTOCHROME KINASE SUBSTRATE (PKS) proteins are involved in light-modulated changes in growth orientation. They act downstream of phytochromes to control hypocotyl gravitropism in the light and act early in phototropin signaling. Despite their importance for plant development, little is known about their molecular mode of action, except that they belong to a protein complex comprising phototropins at the plasma membrane (PM). Identifying evolutionary conservation is one approach to revealing biologically important protein motifs. Here, we show that PKS sequences are restricted to seed plants and that these proteins share 6 motifs (A to F from the N to the C terminus). Motifs A and D are also present in BIG GRAIN, while the remaining 4 are specific to PKSs. We provide evidence that motif C

SUBMITTER: Lopez Vazquez A 

PROVIDER: S-EPMC10291038 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature