Cell type specificity EC 4.1.1.39 Journal Article Plant Proteins RLSB and C4 evolution RNA, Messenger RNA-Binding Proteins Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Ribulose-Bisphosphate Carboxylase Rubisco regulation light regulation nuclear-encoded mRNA-binding protein phylogeny plastid-encoded rbcL gene post-transcriptional control protein synthesis tissue specificity