sulfate is incorporated into exogenously added glycoproteins by sulfotransferases from triton x-100-lysed golgi membranes in the presence of 3'-phosphoadenosine 5'-phospho [ 35s ] sulfate , which is generated from [ 35s ] sulfate by a ribosome-free supernate from krebs ascites tumor cells .
C1179933
ribosome-free
C0007634
cells