previously , strong experimental evidence was presented that the na+o-independent ca2+ extrusion from vsmcs is effected by the plasma membrane ca2+ pump ( furukawa , k.-i. , tawada , y. , and shigekawa , m. ( 1988 ) j. biol . chem . 263 , 8058-8065 ) .
C0007634
the
C0007603
plasma membrane