Auxiliary proteins involved in the assembly and sustenance of photosystem II.
Chloroplast proteins that regulate the biogenesis, performance and acclimation of the photosynthetic protein complexes are currently under intense research. Dozens, possibly even hundreds, of such proteins in the stroma, thylakoid membrane and the lumen assist the biogenesis and constant repair of the water splitting photosystem (PS) II complex. During the repair cycle, assistance is required at several levels including the degradation of photodamaged D1 protein, de novo synthesis, membrane insertion, folding of the nascent protein chains and the reassembly of released protein subunits and different co-factors into PSII in order to guarantee the maintenance of the PSII function. Here we review the present knowledge of the auxiliary proteins, which have been reported to be involved in the biogenesis and maintenance of PSII.
Mulo
Paula
P
Department of Biology, Laboratory of Plant Physiology and Molecular Biology, University of Turku, 20014 Turku, Finland.
Sirpiö
Sari
S
Suorsa
Marjaana
M
Aro
Eva-Mari
EM
D000818:Animals; D002696:Chlamydomonas / Q000378:metabolism; D002736:Chloroplasts / Q000378:metabolism*; D000458:Cyanobacteria / Q000378:metabolism; D045342:Light-Harvesting Protein Complexes / Q000378:metabolism*; D018832:Molecular Chaperones / Q000378:metabolism; D045332:Photosystem II Protein Complex / Q000096:biosynthesis*; D010944:Plants / Q000378:metabolism
D045342:Light-Harvesting Protein Complexes; D018832:Molecular Chaperones; D045332:Photosystem II Protein Complex