Recombinant Human Calcitonin/CALCA is produced with our E. coli expression system. The target protein is expressed with sequence (Tyr58-Asn141) of Human CALCA fused with a 6His tag at the C-terminus.
纯度
> 95 % as determined by reducing SDS-PAGE.
过滤
0.2 μm filtered
内毒素水平
Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test
It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
缓冲液
Supplied as a 0.2 μm filtered solution of 20 mM PB,150 mM NaCl,50 % Glycerol, pH 7.4.
注意事项
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
储存条件
-80 °C
储存方法
Store at < -20°C, stable for 6 months after receipt. Please minimize freeze-thaw cycles.
Calcitonin is a secreted protein which belongs to the calcitonin family. Calcitonin is cleaved into the following two chains: Calcitonin and Katacalcin. Katacalcin is a potent plasma calcium-lowering peptide. Calcitonin is a 32-amino acid linear polypeptide hormone. Calcitonin acts to reduce blood calcium (Ca2+), opposing the effects of parathyroid hormone (PTH). Its importance in humans has not been as well established as its importance in other animals, as its function is usually not significant in the regulation of normal calcium homeostasis. Calcitonin causes a rapid but short-lived drop in the level of calcium and phosphate in blood by promoting the incorporation of those ions in the bones. Alternative Names: Calcitonin, Katacalcin, Calcitonin Carboxyl-Terminal Peptide, CCP, PDN-21, CALCA, CALC1