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XB-ART-30456
Boll Soc Ital Biol Sper December 15, 1982; 58 (23): 1535-40.
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Na,K-ATPase from Xenopus laevis kidney and epidermis: ouabain interaction studies.

De Bortoli M , Giunta C , Stacchini A , Sanchini M .


Abstract
A satisfactory purification from Xenopus laevis epidermis is presented. Ki and Kd values for the ouabain-enzyme interaction have been evaluated. Both parameters appear very low, as compared with those demonstrated in other anurans. Very low digitalis-like compound level was demonstrated in Xenopus; on the contrary in Bufo, in which these substances play a defensive role, it is very high. Our results strengthen the hypothesis of a physiological action of such compounds in regulating enzyme-driven Na+/K+ exchanges.

PubMed ID: 6299312
Article link:


Species referenced: Xenopus laevis
Genes referenced: atp1a1