13774214275
13774214275
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产品型号：S0B2030
更新时间：2025-08-08
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Calponin-1 is a 34 kDa actin-binding protein with regions of sequence homology to cardiac troponin I and T. It is located in the cytoskeleton and contractile apparatus of differentiated smooth muscle cells. There are 3 isoforms of calponin: calponin-1 （h1 or basic）, calponin-2 （h2 or neutral）, and calponin-3 （h3 or acidic）. Calponin-1 is implicated in the regulation of smooth muscle contraction by mediating intracellular signaling responses to some vasoconstrictors by acting as a contractile scaffold protein. This mechanism is based on results in aortic smooth muscle cells stimulated with phenylephrine, which showed calponin-1 connecting protein kinase C and ERK1/2 pathways to promote contractility.
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