Fig. 7.
Pulse-chase analysis of cells cotransfected with GPIIIa and either normal GPIIb, mutant [674R]GPIIb, or equimolar amounts of both GPIIb cDNAs.
CHO cells, transiently transfected with cDNAs encoding GPIIIa and either normal [674C]GPIIb, mutant [674R]GPIIb, or equimolar amounts of both cDNAs, were pulse-labeled with [35S]methionine for 30 minutes and then chased with medium containing unlabeled methionine. At the indicated times, the cells were lysed and immunoprecipitated with either anti-GPIIb or anti-GPIIIa. The precipitates were analyzed by electrophoresis as described in “Materials and methods.”