the latter three phosphoproteins were found to be unlabelled after pha pretreatment , but upon il-2 stimulation the 94-kda and the 85-kda proteins became labelled simultaneously with two minor phosphoproteins of 68 kda ( pi 5.7 ) and 37 kda ( pi 4.8 ) .
C0033684
proteins
C0031689
phosphoproteins