A PAR2 antagonist
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AZ3451 is a protease-activated receptor-2 (PAR2) antagonist.
AZ3451 is highly lipophilic, which coincides with the hydrophobic nature of the binding pocket within the membrane. The interaction of AZ3451 with PAR2 is predominately hydrophobic in nature. AZ3451 binds to a remote allosteric site outside the helical bundle, which prevents structural rearrangements required for receptor activation and signaling.
IC50/KD
IP-One(SLIGRL) | 23±1nM(n=72) |
FLIPR(SLIGRL) | 5.4±1.1nM(n=11) |
FLIPR(Trypsin) | 6.6±1.1μM(n=9) |
Biacore(KD) | 13.5±3nM(n=3) |
β-arrestin-2(PAR1) | >50μM(n=1) |
β-arrestin-2(PAR2) | <2.5nM(n=1) |
β-arrestin-2(PAR4) | 0.38μM(n=1) |
参考文献:
1. Cheng RKY, et al. Structural insight into allosteric modulation of protease-activated receptor 2. Nature. 2017 May 4;545(7652):112-115.
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