CAB1 — Cucumis sativus

Summary

CsCAB1 (CSA_6G522690) encodes a chlorophyll a-b binding protein with domains characteristic of the light-harvesting complex (LHC) family, and is annotated with chlorophyll binding, xanthophyll binding, pheophytinase, RCC reductase, Chl b reductase, and pheophorbide A oxygenase activities. The gene is associated with photosynthesis, light harvesting in photosystems I and II, chlorophyll breakdown, response to low light, desiccation, and herbicide, as well as cellular responses to drought, chitin, and bacterial molecules. It localizes to the thylakoid membrane, LHCII, and photosystems I and II. CsCAB1 is linked to traits including leaf yellowing tolerance, bacterial blight disease resistance, net photosynthetic rate, quantum yield, chlorophyll ratio, starch and protein content, flowering time, root length, and responses to high and low temperature stress. Related genes in other species are linked to cold acclimatization, light adaptation, and state transitions.