Publication Date:
1988-07-22
Description:
Fertilization initiates in the egg a dramatic increase in intracellular calcium that opens ion channels and causes exocytosis. To explore the possibility that these events might involve a receptor-mediated pathway, receptors for serotonin or acetylcholine (M1 muscarinic) were expressed in the Xenopus egg; serotonin or acetylcholine then could initiate a series of responses similar to those normally initiated by sperm. Thus, there may be an endogenous receptor in the egg membrane that is activated by sperm, and the serotonin or M1 muscarinic receptor may replace the sperm receptor in this pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kline, D -- Simoncini, L -- Mandel, G -- Maue, R A -- Kado, R T -- Jaffe, L A -- New York, N.Y. -- Science. 1988 Jul 22;241(4864):464-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Connecticut Health Center, Farmington 06032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3134693" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Cloning, Molecular
;
Cytoplasmic Granules/physiology
;
Endocytosis
;
Exocytosis
;
Female
;
*Fertilization
;
GTP-Binding Proteins/physiology
;
Genetic Engineering
;
Inositol Phosphates/physiology
;
Male
;
Membrane Potentials
;
Receptors, Muscarinic/*physiology
;
Receptors, Serotonin/*physiology
;
Sperm-Ovum Interactions
;
Xenopus laevis
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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