这个词是什么意思？
A subclass of purinergic P2 receptors that signal by means of a ligand-gated ion channel. They are comprised of three P2X subunits which can be identical (homotrimeric form) or dissimilar (heterotrimeric form).
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D058469 · MeSH 2026。
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