Fully biologically active when compared to standard. The ED50 as determined by its ability to induce alkaline phosphatase production by C3H10T1/2(CCL-226) cells is 15-45μg/ml.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation
Lyophilized from a 0.2μm filtered concentrated solution in 10mM PB, pH6.0, 300mM NaCl.
Endotoxin
Less than 1EU/μg of rHuDHH C23II as determined by LAL method.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤-20℃. Further dilutions should be made in appropriate buffered solutions.
Category
Others
Background
Desert hedgehog protein (DHH), also named HHG-3, is belonging to the hedgehog (Hh) family that are highly conserved proteins which are widely represented throughout the animal kingdom. This protein is predicted to be made as a precursor that is autocatalytically cleaved and the biologically active form of Hh molecules corresponds to approximately the N-terminal one half of the precursor molecule. The N-terminal portion is soluble and contains the signaling activity while the C-terminal portion is involved in processing. More importantly, the C-terminal product covalently attaches a cholesterol moiety to the N-terminal product, restricting the N-terminal product to the cell surface and preventing it from freely diffusing throughout the organism. DHH is essential for a variety of patterning events during development as intercellular signal. It may function as a spermatocyte survival factor in the testes and play an important role in testes development. Mature human DHH shares 97% amino acid sequence identity with murine DHH.
