| Bioactivity | CALP2 TFA is a calmodulin (CaM) antagonist (Kd of 7.9 µM) with high affinity for binding to the CaM EF-hand/Ca2+-binding site. CALP2 TFA inhibits CaM-dependent phosphodiesterase activity and increases intracellular Ca2+ concentrations. CALP2 TFA potently inhibits of adhesion and degranulation. CALP2 TFA is also a strong activator of alveolar macrophages[1][2][3][4]. | ||||||
| Name | CALP2 TFA | ||||||
| Sequence | Val-Lys-Phe-Gly-Val-Gly-Phe-Lys-Val-Met-Val-Phe | ||||||
| Shortening | VKFGVGFKVMVF | ||||||
| Formula | C70H105F3N14O15S | ||||||
| Molar Mass | 1471.72 | ||||||
| Appearance | Solid | ||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||
| Storage | Sealed storage, away from moisture
*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
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| Reference | [1]. R Houtman, et al. Attenuation of very late antigen-5-mediated adhesion of bone marrow-derived mast cells to fibronectin by peptides with inverted hydropathy to EF-hands. J Immunol. 2001 Jan 15;166(2):861-7. [2]. R Ten Broeke, et al. Calcium sensors as new therapeutic targets for airway hyperresponsiveness and asthma. FASEB J. 2001 Aug;15(10):1831-3. [3]. Robert Ten Broeke, et al. Specific modulation of calmodulin activity induces a dramatic production of superoxide by alveolar macrophages. Lab Invest. 2004 Jan;84(1):29-40. [4]. M Villain, et al. De novo design of peptides targeted to the EF hands of calmodulin. J Biol Chem. 2000 Jan 28;275(4):2676-85. |