期刊
MOLECULAR AND CELLULAR ENDOCRINOLOGY
卷 180, 期 1-2, 页码 33-38出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/S0303-7207(01)00501-9
关键词
follistatin; follistatin related protein; activin; reproduction; binding protein
资金
- NICHD NIH HHS [U54HD29164] Funding Source: Medline
- NIDDK NIH HHS [R01DK55838, R01DK53828] Funding Source: Medline
The identification and characterization of follistatin related protein (FSRP) suggests that the follistatin (FS) gene family may actually contain two sub-families. The first includes FS and FSRP by virtue of their high degree of structural homology and comparable activin-binding activity. while the second sub-family contains extracellular matrix proteins that possess one or more 10-cysteine FS domains, but do not bind activin or related TGF-beta family members. Characterization of FSRP indicates that it binds activin with similar affinity and selectivity as FS, but does not bind heparin. Furthermore, although FSRP inhibits activin-mediated gene transcription in heterologous assays, FSRP is much less active than FS in the rat pituitary bioassay. When overexpressed in transgenic mice. FSRP may lead to interruption of follicular development and fertility in females but appears to have only a modest effect on males. These results suggest that FSRP is a structural, but not necessarily a functional homologue of FS. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.
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