Recognition of a human sperm surface protein involved in the progesterone-initiated acrosome reaction by antisera against an endomembrane progesterone binding protein from porcine liver
Antisera against a porcine liver endomembrane progesterone (P4)-binding protein inhibited the P4-initiated acrosome reaction (AR) but not the ionomycin-initiated AR of human sperm. Indirect immunofluorescence studies detected antigen in the sperm head that moved during capacitation from a posterior...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
20 December 1999
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| In: |
Molecular and cellular endocrinology
Year: 1999, Volume: 158, Issue: 1, Pages: 187-193 |
| ISSN: | 1872-8057 |
| DOI: | 10.1016/S0303-7207(99)00173-2 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/S0303-7207(99)00173-2 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0303720799001732 
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| Author Notes: | Madhavee Buddhikot, Elisabeth Falkenstein, Martin Wehling, Stanley Meizel |
| Summary: | Antisera against a porcine liver endomembrane progesterone (P4)-binding protein inhibited the P4-initiated acrosome reaction (AR) but not the ionomycin-initiated AR of human sperm. Indirect immunofluorescence studies detected antigen in the sperm head that moved during capacitation from a posterior head region to a midhead region. Moreover, the antisera detected a 44.6 kDa protein in western blots of sperm digitonin extracts. These results suggest that a sperm protein with at least partial homology to the liver endomembrane P4-binding protein, is a putative P4-receptor on the sperm plasma membrane involved in the P4-initiated AR. |
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| Item Description: | Online veröffentlicht am 29 November 1999 Gesehen am 19.10.2022 |
| Physical Description: | Online Resource |
| ISSN: | 1872-8057 |
| DOI: | 10.1016/S0303-7207(99)00173-2 |