Arabidopsis thaliana plastidial methionine sulfoxide reductases B, MSRBs, account for most leaf peptide MSR activity and are essential for growth under environmental constraints through a role in the preservation of photosystem antennae.
Laugier E, Tarrago L, Vieira Dos Santos C, Eymery F, Havaux M, Rey P. Plant J. 2010 Jan; 61(2):271-82. Epub 2009 Oct 26.