“…Later studies showed that, besides POR, the α‐ and β‐subunits of chloroplast coupling factor 1 (CF 1 ) constitute the main part of the EPIM proteome (Lütz et al 1981, Ryberg and Sundqvist 1982, Santel and Apel 1981), while the δ‐, ɛ‐ and γ‐subunits of CF 1 , as well as subunits I and II of CF 0 , were found to a minor extent (Høyer Hansen et al 1979, Selstam et al 1989). Cytochromes, plastocyanin, ferredoxin NADPH reductase (FNR), ferredoxin, Rieske Fe–S centre, D2, photosystem II (PSII) stability/assembly factor (Hcf136) and the 23‐kDa and 33‐kDa oxygen‐evolving complex proteins (OEC23 and OEC33) were shown to be present in etioplasts of various angiosperms (Hashimoto et al 1993, Haslett and Cammack 1976, Høyer Hansen 1980, Meurer et al 1998, Müller and Eichacker 1999, Ryrie et al 1984, Takabe et al 1986). In contrast to our knowledge of the final protein composition, i.e.…”