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编 号:F402068
分子式:C27H36N6O6S
分子量:572.68
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生物活性:
[Met5]-Enkephalin, amide is an agonist for δ opioid receptors as well as putative ζ (zeta) opioid receptors.

体外研究:
[Met5]-Enkephalin at 0.1 nM, 10 nM, and1 μM significantly reduces the total number of glial cells in culture. [Met5]-Enkephalin, amide acts via δ-opioid receptor to inhibit pelvic nerve-evoked contractions of cat distal colon. [Met5]-enkephalin causes concentration-dependent, reversible inhibition of pelvic nerve-evoked contractions, with an IC50 value of 2.2 nM. [Met5]enkephalin at a concentration (3 nM) which produces a large inhibition of neurogenic contractions, has no effect on contractions to exogenous acetylcholine.
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