alexa Impaired production of BMP-15 and GDF-9 mature proteins derived from proproteins WITH mutations in the proregion.


Journal of Womens Health Care

Author(s): Inagaki K, Shimasaki S

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Abstract Mutations in the bone morphogenetic protein-15 (BMP-15) and growth and differentiation factor-9 (GDF-9) genes have been identified in women with primary ovarian insufficiency (POI) and mothers of dizygotic twins. Here, we show that biological activities of the conditioned media from human embryonic kidney 293F cells transfected with two representative BMP-15 and GDF-9 mutants identified in the affected women have significantly reduced biological activities compared with the corresponding wild-type. Moreover, this difference is due to decreased production of the mature proteins, attributed most likely to impaired posttranslational processing of the proprotein. As genetic studies of the BMP-15 and/or GDF-9 genes in ewes established that a reduction of these proteins is associated with an increased ovulation rate, it is conceivable that women affected with these mutations may have an increased probability of bearing dizygotic twins during active reproductive ages before diagnosis with POI at later ages due to an earlier exhaustion of ovarian reserve. Copyright (c) 2010 Elsevier Ireland Ltd. All rights reserved.
This article was published in Mol Cell Endocrinol and referenced in Journal of Womens Health Care

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