oligodendroglia were isolated from bovine brain , and a `` '' crude '' '' microsomal fraction obtained from cell homogenates was subfractionated into myelin ( mp ) , plasma membranes ( pm ) , golgi ( gf ) , smooth ( ser ) and rough ( rer ) endoplasmic membranes using discontinuous-sucrose gradient centrifugation .
C0007634
m ce
C0007603
plasma membran