KLH-conjugated synthetic peptide chosen from known sequences of PsbC including Arabidopsis thaliana PsbC, UniProt: P56778, TAIR: AtCg00280
PsbC (CP43) acts as an antenna to the PSII core and its presence seem to be also necessary for maintaining water splitting activity. This protein is more weakly associated with the PSII reaction centre and can be removed from the isolated core.