Effect of some lipophilic substances on mitochondrial ATPase

Casali, C.; Degli Esposti, M.; Bertoli, E.; Parenti-Castelli, G.; Lenaz, G.

Bollettino della Societa Italiana di Biologia Sperimentale 56(10): 996-1001

1980


ISSN/ISBN: 0037-8771
PMID: 6449955
Document Number: 155295
This work reports a study about the influence of some lipophilic substances like cholesterol, calciferol and tocopherol on the ATP-hydrolase activity in mitochondria. It is found that the steroids cholesterol and calciferol inhibit ATPase activity and behave like uncompetitive factors towards the enzymatic kinetics. Tocopherol, instead, affects significantly only the DCCD sensitivity of ATPase. Such effects are very probably due to the action of the physico-chemical state of th mitochondrial membrane produced by these lipophilic compounds.

Document emailed within 1 workday
Secure & encrypted payments