

This product is freeze dried. All water molecules have been removed.

This antibody is shipped with its antigen FREE of charge!
- Peptide (C)HLVEVVPNGDLVRRD, corresponding to amino acid residues 201-215 of rat CALCR (Accession P32214).
- Western blot analysis of rat brain membrane (lanes 1 and 3) and mouse brain lysate (lanes 2 and 4):1,2. Anti-Calcitonin Receptor (extracellular) Antibody (#ACR-053), (1:200).
3,4. Anti-Calcitonin Receptor (extracellular) Antibody, preincubated with the negative control antigen.
- Expression of CALCR in rat PC12 cellsCell surface detection of CALCR in intact living rat pheochromocytoma (PC12) cells. A, C. Extracellular staining of cells using Anti-Calcitonin Receptor (extracellular) Antibody, (#ACR-053), (1:50). B, D. Merged images of A and C, each with its respective live view of the cells.
- 1. Segovia-Silvestre, T. et al. (2011) BMC Res. Notes 4, 407.
- 2. Barwell, J. et al. (2012) Br. J. Pharmacol. 166, 51.
- 3. Taboulet, J. et al. (1998) Hum. Mol. Genet. 7, 2129.
- 4. Gorn, A.H. et al. (1995) J. Clin. Invest. 95, 2680.
- 5. Gorn, A.H. et al. (1992) J. Clin. Invest. 90, 1726.
- 6. Gooi, J.H. et al. (2014) J. Endocrinol. 221, 181.
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the calcitonin receptor (CTR) is a class B G-protein coupled receptor (GPCR) that signals via activation of cAMP and protein kinase C (PKC). It is one of 15 human class B GPCRs1,2. Apart from CTR, calcitonin receptor-like receptor (CTLR) is the only other B-class GPCR to bind calcitonin. To date, there are three known human CTR mRNA isoforms arising from alternative splicing3.
Calcitonin itself is a peptide hormone that contributes to bone calcification by direct inhibition of osteoclasts which resorb the bony tissue. It is part of a six-member family that has varied functionalities. By binding to receptor activity modifying proteins (RAMPs), CTR and CTLR can form receptors to every member of the calcitonin family. For instance, RAMP1 and CTR construct the calcitonin gene-related peptide (CGRP) receptor.
Both CTR and CTLR have seven transmembrane domains, an intracellular C-terminal, and an extracellular N-terminal. To activate the receptors, their N-terminal must first capture the C-terminal of the ligand and then carried to the transmembrane loops where it bestows a conformational change upon them.
Besides the bone, CTR has prominent roles in the kidney, CNS, placenta, ovaries, sperm, lung, and in the brain4,5.
In osteoclasts, the expression of CTRs declines with age. Interestingly, polymorphism of the CTR gene is strongly associated with decreased fracture-risk in post-menopausal women3,6.
Alomone Labs is pleased to offer a highly specific antibody directed against an epitope of rat CT-R. Anti-Calcitonin Receptor Antibody (#ACR-053) can be used in western blot and live cell imaging applications. It has been designed to recognize CT-R from human, rat and mouse samples.
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二、补体(complement,C)是存在于正常人和动物血清与组织液中的一组经活化后具有酶活性的蛋白质。早在19世纪末Bordet即证实,新鲜血液中含有一种不耐热的成分,可辅助和补充特异性抗体,介导免疫溶菌、溶血作用,故称为补体。补体是由30余种可溶性蛋白、膜结合性蛋白和补体受体组成的多分子系统,故称为补体系统(complementsystem)。根据补体系统各成分的生物学功能,可将其分为补体固有成分、补体调控成分和补体受体(CR)。

