THE PRESENCE OF A CALCIUM-SENSITIVE P26-CONTAINING COMPLEX IN BOVINE RETINA ROD CELLSстатья
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Аннотация:A protein with apparent M(r)26 kDa (p26[(1991) Biokimya 56, 225-228] or recoverin [(1991) Science 251, 915-918]) was suggested to activate GC in a calcium dependent manner in bovine retina rod cells [(1991) Science 251, 915-918;(1991) EMBO J, 10, 793-798] However, according to our present data homogeneous p26 preparations do not activate the enzyme. At the same time we have revealed a complex of p26 with an unidentified protein, presumably RK, in bovine ROS. Calcium favours formation of the complex whereas EGTA addition (which corresponds to a low free Ca2+ concentration) leads to its dissociation.