RCA — Cucumis sativus

Summary

CsRCA (CSA_5G182730) on cucumber chromosome 5 encodes a protein with RuBisCO activase AAA helical, RCA-like, ATPase AAA core, and P-loop NTPase domains, and is annotated as a rubisco activator with ATP hydrolase activity, ADP/ATP binding, histone acetylase activity, and protein folding chaperone functions. The gene is associated with light absorption, electron transport, response to light stimulus, and systemic acquired resistance, as well as response to cold and jasmonic acid. It localizes to chloroplast thylakoid membranes, stroma, and stromules. CsRCA is associated with traits such as net photosynthetic rate, quantum yield, transpiration rate, stomatal resistance, respiration rate, plant height, and high temperature stress response, along with phenotypes including photosynthetic efficiency, leaf senescence, cell death, heat tolerance, and DNA methylation. Related genes in other species are linked to Rubisco activation, thermotolerance of photosynthesis, and growth regulation.