ECB-ART-31590
Comp Biochem Physiol B
1990 Jan 01;952:423-9. doi: 10.1016/0305-0491(90)90097-d.
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A species-specific sperm-activating peptide from the egg jelly of the sea urchin Diadema setosum.
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1. A species-specific sperm-activating peptide was isolated from the egg jelly of the sea urchin Diadema setosum and the amino acid sequence was determined as follows: (formula; see text). 2. The peptide caused significant increases of respiration rates and cyclic nucleotide concentrations in D. setosum spermatozoa as low as 10(-9) M. 3. The addition of the peptide to D. setosum spermatozoa resulted in the appearance of a newly stained protein (mol. wt 128,000) on sodium dodecyl sulfate-polyacrylamide gels.
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Genes referenced: LOC100887844