The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Protein concentration is above or equal to 0.05 mg/ml.
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Preparation and Storage
Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
pH: 8.00 Constituents: 0.31% Glutathione, 0.79% Tris HCl
Cation channel sperm associated 1
Cation channel sperm associated protein 1
Cation channel sperm-associated protein 1
Sperm associated cation channel 1
Sperm ion channel
Voltage-gated calcium channel that plays a central role in calcium-dependent physiological responses essential for successful fertilization, such as sperm hyperactivation, acrosome reaction and chemotaxis towards the oocyte. Activated by extracellular progesterone and prostaglandins following the sequence: progesterone > PGF1-alpha = PGE1 > PGA1 > PGE2 >> PGD2. The primary effect of progesterone activation is to shift voltage dependence towards more physiological, negative membrane potentials; it is not mediated by metabotropic receptors and second messengers. Sperm capacitation enhances the effect of progesterone by providing additional negative shift. Also activated by the elevation of intracellular pH.
Involvement in disease
Defects in CATSPER1 are the cause of spermatogenic failure type 7 (SPGF7) [MIM:612997]. An infertility disorder characterized by non-motile sperm or sperm motility below the normal threshold, low sperm count, increased abnormally structured spermatozoa, and reduced semen volume.
Belongs to the cation channel sperm-associated (TC 1.A.1.19) family.
Expressed meiotically and post-meiotically.
Cell projection > cilium > flagellum membrane. Specifically located in the principal piece of sperm tail.