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A comparative analysis of cAMP-dependent protein kinase regulatory subunits in sea urchin and rat spermatozoa
spermatozoa azido photoprobes protein kinase nucleotides epididymis
2009/2/23
8-Azido cAMP photoaffinity labeling of cAMP-dependent protein kinase regulatory subunits (R1 = 49 K;R2 = 55K) was done on spermatozoa from species lacking, and species containing an epididymis. Sper...
Biochemical alterations in the proacrosin-acrosin system during epididymal maturation of the rat spermatozoa
Biochemical alterations proacrosin-acrosin system epididymal maturation rat spermatozoa
2009/2/10
Acrosin, an acrosomal serine protease, is believed to have a role in fertilization. The enzyme is synthesized in an enzymatically inactive precursor form, proacrosin, and is processed to enzymatical...
A redox-regulated tyrosine phosphorylation cascade in rat spermatozoa
Epididymal maturation cAMP-dependent phosphorylation
2008/12/29
Rat spermatozoa from both the caput and cauda epididymidis were shown to generate superoxide anion (O2-.) both spontaneously and following stimulation with NAD(P)H. Caput spermatozoa gave a signific...