D-penicillamine prevents ram sperm agglutination by reducing the disulphide bonds of a copper-binding sperm protein

Protein disulphide-isomerase and the formation of native disulphide bonds.

Disulphide bonds are found in practically every class of extracellular protein, and the formation of disulphide bonds must be regarded as a key post-translational modification of secretory proteins. Despite this, and despite the fact that the existence of disulphide bonds has been known for many years, the mechanism of disulphide bond formation during protein biosynthesis and secretion is not w...

Sperm - Egg Binding Protein or Proto - Oncogene ?

tized. The hybridization signal of the radiolabeled probe appears as white grains. All specimens were observed under dark field illumination after nuclear counterstain with hematoxylin. Immunostaining for factor Vill-related antigen (4) confirmed that injury was limited to endothelium. 23. Binding was carred out in buffer containing 50 mM NaCI, 5 mM MgCI2, 5% glycerol, 2.5 mM Hepes (pH 7.9), 1 ...

Sperm-egg binding protein or proto-oncogene?

Running head: Sperm preserving proteins Immunohistochemical Localization of Sperm Preserving Proteins in the Ram Reproductive Tract

Effects of Frozen Diluents on Storage of Ram Sperm

Semen collection evaluation and addition of preservatives to increase storage period of sperm are essential for successful artificial insemination. This study was conducted on 4rams (2 Ghezel Merinos and 2 Merinos Moghani) to evaluate the effect of two diluents in Khalatposhan research station. Average age of rams was 3 years. Rams were trained to serve the artificial insemination and semen sam...