of the major mammalian stress proteins ( mr = 72,000 , 73,000 , and 90,000 ) and minor stress proteins ( mr = 80,000 , 100,000 , and 110,000 ) , the 80- and 90-kda proteins were found to be phosphoproteins in all cell types examined .
C0033684
proteins
C0031689
phosphoproteins