SAGE 发表于 2025-3-25 04:15:14
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Cell Biology of First Messenger Synthesis and Secretion,t always, occurs by the process of .. The essential features of this process are that the messenger is stored inside membrane-bound vesicles in the cytosol. In response to a stimulus for secretion, which might be a nervous impulse, another first messenger, or in the case of the pancreatic ß cell, aexplicit 发表于 2025-3-25 16:58:09
,Cell Surface Receptors — Analysis and Identification,interaction of the messenger with the target cell is normally highly specific, with even closely related compounds (including stereoisomers) usually being ineffective. In addition, the messenger can often act at extremely low concentrations, in the nanomolar or even picomolar range. It has always se机制 发表于 2025-3-25 21:28:39
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