Inhibiting effect of ADP-ribosylation by pertussis toxin on passive transport of Ca2+ into the cell membrane of porcine myometrium

Kurskiĭ, M.D.; Kropotova, S.A.; Prishchepa, L.A.

Biokhimiia 57(11): 1751-1755

1992


ISSN/ISBN: 0320-9725
PMID: 1489833
Document Number: 398479
ADP-ribosylation by whooping cough toxin of protein components of inside-out oriented vesicles of pig myometrium plasma membranes under conditions of their depolarization results in significant inhibition of passive transport of Ca2+ ions. The inhibiting effect is dose- and time-dependent. rho-Chloromercuribenzoate (0.5 mM) blocks the effect of whooping cough toxin, no such effect on Ca2+ transport being observed in control preparations.

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