Discovery of a Protein Required for Photosynthetic Membrane Assembly

The decision whether the precursors of light-harvesting proteins of photosystem II in Chlamydomonas are permitted to continue on the import pathway through the envelope or are returned and transferred into vacuoles for degradation depends on the binding of chlorophyll a and the stabilization of this binding by conversion of some of the pigment molecules to chlorophyll b in the inner envelope membrane.