Auxiliary proteins involved in the assembly and sustenance of photosystem II

Photosynth Res. Oct-Dec 2008;98(1-3):489-501. doi: 10.1007/s11120-008-9320-3. Epub 2008 Jul 10.


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.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Chlamydomonas / metabolism
  • Chloroplasts / metabolism*
  • Cyanobacteria / metabolism
  • Light-Harvesting Protein Complexes / metabolism*
  • Molecular Chaperones / metabolism
  • Photosystem II Protein Complex / biosynthesis*
  • Plants / metabolism


  • Light-Harvesting Protein Complexes
  • Molecular Chaperones
  • Photosystem II Protein Complex