Li et al., Biochemistry 2005
:
In agreement with prior measurements in cardiac SR microsomes, the calcium concentration associated with half-maximal activation ( Ca(1/2) ) of the Ca-ATPase , 290 +/- 10 nM, is shifted to 580 +/- 20 nM when co-reconstituted with PLB ( C ) ( Pro21 ) as a result of a reduction in the cooperativity associated with the calcium dependent structural transition
Brooks et al., Proc Soc Exp Biol Med 1983
:
NB did not inhibit carbonic anhydrase in whole stomach homogenates of guinea pig, but did inhibit the potassium stimulated gastric microsomal ATPase