The cleaved and assembled gp41:gp121 complexes are transport to teh plasma membrane. This complex ultimately arrives via the cellular secretion pathway. Env is an integral membrane protein shuttled through the ER and Golgi where it was glycosylated and cleaved into the gp41 and gp120 subunits. The trimeric complex is brought to the plasma membrane by the host vesicular transport system. Only 7-14 trimers are present per virion.