Brain capillary guanosine triphosphatase: A distinction from adenosine triphosphatase |
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| Authors: | B M Djuri?i? T Stojanovi? B B Mr?ulja |
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| Institution: | (1) Laboratory for Neurochemistry, Institute of Biochemistry, Faculty of Medicine, Belgrade, Yugoslavia |
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| Abstract: | Summary Differences in kinetic properties, pH response, sensitivity to ouabain, and disc-acrylamide electrophoresis resolution, are observed when GTP and ATP are used as the substrates, for triphosphohydrolases in isolated rat brain microvessels. In brain parenchyma there are no such differences. It is concluded that substrate-specific GTPase exists in brain microvessels.This work was supported by the research grant No. 214 from ZMNU of Serbia. |
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