Biogenesis of light harvesting proteins.

摘要: The LHC family includes nuclear-encoded, integral thylakoid membrane proteins, most of which coordinate chlorophyll and xanthophyll chromophores. By assembling with the core complexes both photosystems, LHCs form a flexible peripheral moiety for enhancing light-harvesting cross-section, regulating its efficiency providing protection against photo-oxidative stress. Upon first appearance, proteins underwent evolutionary diversification into large protein complex genetic redundancy. Such differentiation appears as crucial event in adaptation photosynthetic organisms to changing environmental conditions land colonization. structure including nuclear- chloroplast-encoded subunits, presented cell number challenges control light harvesting function. Indeed, LHC-encoding messages are translated cytosol, pre-proteins imported chloroplast, processed their mature size targeted thylakoids where assembled Thus, tight coordination between nuclear plastid gene expression, response stimuli, is required adjust composition during photoacclimation. In recent years, remarkable progress has been achieved elucidating structure, function regulatory pathways involving LHCs; however, molecular details still await elucidation. this review, we will provide an overview on current knowledge biogenesis, ranging from organization pigment-protein modulation import targeting membranes, regulation assembly turnover. Genes controlling these events potential candidate biotechnological applications aimed at optimizing use organisms. This article part Special Issue entitled: Chloroplast biogenesis.