moreover , the findings suggest that , of the ribosomal protein phosphorylations observed in rat cerebral cortex in vivo , proteins s2 , s6 , s10 , l6 , l13 and l29 can be phosphorylated in polyribosomes , whereas proteins s3a , s5 , l14 and l19 may become phosphorylated only in free ribosomal subunits .
C0035552
ribosomal protein
C0033684
proteins