( 2 ) a8 cells resistant to ouabain , an inhibitor of the na+/k+-activated atpase of the plasma membrane ; ( 3 ) icr 2a cells resistant to low ( 20 microgram/ml ) and high ( 300 microgram/ml ) levels of bromodeoxyuridine ( budr ) , a thymidine analog which interferes with the pyrimidine salvage pathway ;
C0007603
plasma membrane
C0007634
cells