Ushiro and Cohen ( 1980 ) discovered the important role of the phosphorylation of tyrosine as a regulator of intracellular processes .
Ushiro and Cohen ( 1980 ) revealed changes in the tyrosine kinase activity of proteins in mammalian cells .
Ushiro and Cohen ( 1980 ) discovered the important role of the phosphorylation of tyrosine as a regulator of intracellular processes and revealed changes in the tyrosine kinase activity of proteins in mammalian cells .