CAB1 — Capsicum annuum

Summary

CaCAB1 (T459_05320) on pepper chromosome 2 encodes a chlorophyll a-b binding protein. The product is annotated with chlorophyll binding and metal binding functions, localizes to the chloroplast thylakoid membrane and both photosystems, and is associated with photosynthesis, light harvesting in photosystem I, pigmentation, chlorophyll anabolism and breakdown, phenylpropanoid and flavonoid metabolism, virus-induced PTGS, and response to light stimulus. The gene is linked to fruit color, quantum yield, net photosynthetic rate, and chlorophyll content. Studies of related genes in other species further connect the family to light harvesting.