effects of 3,3',4',5-tetrachlorosalicylanilide ( tcs ) , a lipophilic weak acid , on ca2+ uptake and atp hydrolysis by the sarcoplasmic reticulum calcium pump were characterized to obtain insight into the possible role of hydrophobic portions of the ca2+-atpase in the catalytic mechanism of the enzyme .
C0916181
sarcoplasmic reticulum calcium pump
C0001476
ca2