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XB-ART-26585
Science August 11, 1989; 245 (4918): 643-6.

The product of the mos proto-oncogene as a candidate "initiator" for oocyte maturation.

Sagata N , Daar I , Oskarsson M , Showalter SD , Vande Woude GF .


Abstract
The endogenous c-mos product, pp39mos, is required for progesterone-induced meiotic maturation in Xenopus oocytes. Treatment of oocytes with progesterone induced a rapid increase in pp39mos that preceded both the activation of maturation promoting factor (MPF) and germinal vesicle breakdown (GVBD). Microinjection of synthetic mos RNA into oocytes activated MPF and induced GVBD in the absence of progesterone. Thus, the mos proto-oncogene product may qualify as a candidate "initiator" protein of MPF and is at least one of the "triggers" for G2 to M transition.

PubMed ID: 2474853
Article link: Science
Grant support: [+]

Species referenced: Xenopus laevis
Genes referenced: mos