CAB1 — Capsicum annuum

Summary

CaCAB1 (T459_11119) on pepper chromosome 4 encodes a chlorophyll a-b binding protein of the light-harvesting complex (LHC) family, containing Chloro_AB-bd_pln and chloroa_b-bind domains. The product is associated with xanthophyll binding, pheophytinase activity, RCC reductase activity, Chl b reductase activity, pheophorbide A oxygenase activity, chlorophyll b synthesis activity, Fe/S binding, histone H3K18 acetyltransferase activity, disulphide bond formation, double-stranded methylated DNA binding, chlorophyll binding, chitosan binding, chitin binding, and acyltransferase activity. It is linked to photosynthesis light harvesting in photosystems I and II, upregulation of chlorophyll anabolism, chloroplast thylakoid membrane protein import, response to low light, procambium histogenesis, PSII-associated LHCII catabolic process, regulation of HR, response to fructose, desiccation, herbicide, and chitin, pigmentation, phenylpropanoid metabolism, chlorophyll breakdown, and cellular response to drought. Localisation evidence places it in the thylakoid membrane, photosystems I and II, LHCII, chloroplast inner membrane, and signal recognition particle chloroplast targeting. Associations include chlorophyll ratio, leaf yellowing tolerance, variegated leaf, hybrid incompatibility, bacterial blight disease resistance, fruit color, net photosynthetic rate, quantum yield, cytokinin and brassinosteroid