Determination of the functional molecular size of vasopressin isoreceptors
- 1 October 1984
- journal article
- Published by Wiley in FEBS Letters
- Vol. 175 (2), 383-386
- https://doi.org/10.1016/0014-5793(84)80773-5
Abstract
The molecular size of vasopressin receptors in the intact membrane-bound state was determined by radiation inactivation (target size analysis). For the V1 receptor in rat liver a molecular size of (76 ± 8) kDa was determined. For the V2, receptor in rat kidney and bovine kidney molecular sizes of (95 ± 4) and (108 ± 11) kDa were found. Statistical analysis gave evidence for size differences between rat liver and rat kidney receptors or differences between rat liver and bovine kidney receptors, but not between kidney receptors from different species. The results suggest that V1 and V2 receptors can be distinguished by functional properties as well as by their size.Keywords
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