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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Tissue-specific regulation of renin-binding protein gene expression in rats.

Rat gene for renin-binding protein (RnBP) was shown to be expressed in the kidney, adrenal gland, brain, lung, spleen, ovary, testis, and heart. On sodium depletion and captopril administration, the rat showed a marked increase in the adrenal RnBP mRNA level and a slight decrease in the kidney RnBP mRNA level. In two-kidney, one clip hypertensive rats, the RnBP mRNA levels of the clipped and contralateral kidneys were unchanged and also its adrenal mRNA level was maintained at the control level. The recombinant rat RnBP was synthesized in Escherichia coli cells and purified to apparent homogeneity. The RnBP existed as a homodimer and formed a heterodimer with rat renin to inhibit renin activity extensively. Intravenous injection of the RnBP into rats resulted in a rapid and strong inhibition of plasma renin activity, which persisted at least for 2 h. These results suggest that the expression of RnBP gene in the kidney and adrenal gland is regulated independently, and the function of RnBP is related to electrolyte homeostasis, probably through the interaction with renin.[1]


  1. Tissue-specific regulation of renin-binding protein gene expression in rats. Tada, M., Takahashi, S., Miyano, M., Miyake, Y. J. Biochem. (1992) [Pubmed]
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