SDH2-1 — Cucumis sativus

Summary

CsSDH2-1 (CSA_3G595230) on cucumber chromosome 3 encodes the iron-sulfur subunit of mitochondrial succinate dehydrogenase (complex II), an enzyme with succinate dehydrogenase (quinone) and fumarate reductase activities that requires 2Fe-2S, 3Fe-4S and 4Fe-4S clusters. The gene is associated with the TCA cycle, aerobic respiration, oxidative phosphorylation from succinate to ubiquinone, and electron transfer. It localises to the mitochondrial inner membrane as part of respiratory chain complex II, with additional connections to plastid and cytosol. CsSDH2-1 is associated with respiration rate and photosynthetic rate, while related genes in other species are linked to biomass, stomatal conductance, root and flower development, and mitochondrial complex II formation.