The elevation of sperm adenosine 3',5'-monophosphate concentrations by factors released from eggs requires calcium.
D000818:Animals; D002118:Calcium / Q000502:physiology*; D000242:Cyclic AMP / Q000378:metabolism*; D006152:Cyclic GMP / Q000378:metabolism; D005260:Female; D066298:In Vitro Techniques; D008274:Magnesium / Q000502:physiology; D008297:Male; D010063:Ovum / Q000502:physiology*; D012617:Sea Urchins / Q000187:drug effects / Q000378:metabolism*; D013094:Spermatozoa / Q000187:drug effects / Q000378:metabolism*; D013268:Stimulation, Chemical; D013806:Theophylline / Q000494:pharmacology
D013806:Theophylline; D000242:Cyclic AMP; D006152:Cyclic GMP; D008274:Magnesium; D002118:Calcium