| 产品描述: | Katacalcin (PDN 21) 是一种有效的具有降低血钙效应的多肽激素。
【Sequence】
Asp-Met-Ser-Ser-Asp-Leu-Glu-Arg-Asp-His-Arg-Pro-His-Val-Ser-Met-Pro-Gln-Asn-Ala-Asn
DMSSDLERDHRPHVSMPQNAN |
| 体外研究: |
Katacalcin is a potent plasma calcium lowering peptide. Katacalcin belongs to the calcitonin family, that causes a rapid but short-lived drop in the level of calcium and phosphate in blood by promoting the incorporation of these ions in the bones. Katacalcin (KC) belongs to a small family of polypeptides that are encoded by the calc-1 gene and also include calcitonin (CT) and procalcitonin NH2-terminal cleavage peptide (N-ProCT). Katacalcin pretreatment leads to a concentration-dependent decrease at concentrations between 1 amol/liter and 10 fmol/liter and is a more potent inhibitor of fMLP-induced chemotaxis than CT or procalcitonin (PCT). Katacalcin deactivates CD14+ peripheral blood mononuclear cell (PBMC) chemotaxis not only toward N-formyl-Met-Leu-Phe (fMLP) but also toward other attractants of the chemokine family (heterologous deactivation) as well as toward PCT and CT. Pretreatment of CD14+ PBMCs with Katacalcin also deactivates subsequent chemotaxis toward Katacalcin itself. Katacalcin elicites concentration-dependent migration of CD14+ PBMC at concentrations from the atomolar to the micromolar range and deactivates attractant-induced chemotaxis. Katacalcin regulates human CD14+ PBMC migration via signaling events involving protein kinase A-dependent cAMP pathways. |
| 参考文献: |
1. Hillyard CJ, et al. Katacalcin: a new plasma calcium-lowering hormone. Lancet. 1983 Apr 16;1(8329):846-8. 2. Kaneider NC, et al. Involvement of cyclic adenosine monophosphate-dependent protein kinase A and pertussis toxin-sensitive G proteins in the migratory response of human CD14+ mononuclear cells tokatacalcin. J Bone Miner Res. 2002 Oct;17(10):187 2. Hillyard CJ, et al. Katacalcin: a new plasma calcium-lowering hormone. Lancet. 1983 Apr 16;1(8329):846-8. 3. Kaneider NC, et al. Involvement of cyclic adenosine monophosphate-dependent protein kinase A and pertussis toxin-sensitive G proteins in the migratory response of human CD14+ mononuclear cells tokatacalcin. J Bone Miner Res. 2002 Oct;17(10):1872-82. |
| 保存条件: |
-20°C,氮气保存 |
| 配置溶液浓度参考: |
|
1mg |
5mg |
10mg |
| 1 mM |
0.41 ml |
2.052 ml |
4.104 ml |
| 5 mM |
0.082 ml |
0.41 ml |
0.821 ml |
| 10 mM |
0.041 ml |
0.205 ml |
0.41 ml |
| 50 mM |
0.008 ml |
0.041 ml |
0.082 ml |
|
| 注意: |
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