Developmentally regulated polyadenylation of two discrete messenger ribonucleic acids for müllerian inhibiting substance.

Abstract:

:Mullerian inhibiting substance (MIS) is a 140-kilodalton homodimeric glycoprotein that causes regression of the Mullerian ducts in male embryos, and may also have a role in both males and females in the regulation of germ cell maturation. We examined the ontogeny of MIS messenger RNA (mRNA) in rat testes from midgestation through adulthood and found two discrete MIS mRNA species that are developmentally regulated. The larger 2.0-kilobase species is abundant at embryonic day 14, then decreases in late gestation, and is barely detectable after birth. The smaller 1.8-kilobase species is first noted at embryonic day 18 and is the major species detected postnatally. Both species are abundant just prior to birth, at embryonic day 21, then decrease markedly after birth. This variation in MIS mRNA levels correlates with the developmental expression of MIS protein. A series of oligonucleotide-directed ribonuclease H mapping experiments determined that the two mRNA species differ at their 3' ends in the extent of polyadenylation. Thus, differential polyadenylation of MIS mRNA may be an additional mechanism for regulating MIS expression during fetal and postnatal development.

journal_name

Endocrinology

journal_title

Endocrinology

authors

Lee MM,Cate RL,Donahoe PK,Waneck GL

doi

10.1210/endo.130.2.1346380

subject

Has Abstract

pub_date

1992-02-01 00:00:00

pages

847-53

issue

2

eissn

0013-7227

issn

1945-7170

journal_volume

130

pub_type

杂志文章