这个词是什么意思？
Long-lasting voltage-gated CALCIUM CHANNELS found in both excitable and non-excitable tissue. They are responsible for normal myocardial and vascular smooth muscle contractility. Five subunits (alpha-1, alpha-2, beta, gamma, and delta) make up the L-type channel. The alpha-1 subunit is the binding site for calcium-based antagonists. Dihydropyridine-based calcium antagonists are used as markers for these binding sites.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D020746 · MeSH 2026。
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