CAB1 — Capsicum annuum

Summary

CaCAB1 (T459_05318) on pepper chromosome 2 encodes a chlorophyll a-b binding protein, a component of the light-harvesting complexes in chloroplast thylakoid membranes. The product belongs to the Chloro_AB-bd_pln and Chloroa_b-bind families and is annotated with chlorophyll binding and metal binding molecular functions. CaCAB1 is associated with photosynthesis, light harvesting in both photosystem I and II, chlorophyll anabolism and breakdown, pigmentation, phenylpropanoid and flavonoid metabolism, virus-induced PTGS, homeostasis, and response to light stimulus. It is also linked to fruit color, quantum yield, net photosynthetic rate, and chlorophyll content. Related genes in other species (CABC, CABE, CAB7, LHCP) connect this protein family to light harvesting and pigment binding.