Human myometrial G alpha s-small (with serine) and Gs-large (with serine) messenger ribonucleic acid splice variants promote the increased expression of 46- and 54-kilodalton G alpha s protein isoforms in pregnancy and their down-regulation during labor.

Abstract excerpt

In previous studies using specific G alpha s antibodies we have identified several human myometrial G alpha s protein isoforms with molecular masses of 45, 46, 47, 54, and 58 kDa, respectively. During pregnancy, levels of the 46- and 54-kDa proteins are significantly increased compared to those in nonpregnant myometrium and then decreased at the onset of labor. In this study we investigated the expression of G...

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