TyK2-IN-2 (Compoud 18) 是一种有效的选择性 TYK2 抑制剂，对 TYK2 JH2，IL-23 和 IFNα 的 IC₅₀ 值分别为 7 nM，0.1 μM 和 0.05 μM。TyK2-IN-2 还抑制磷酸二酯酶 4 (PDE4)，其 IC₅₀ 为 62 nM。TyK2-IN-2 可用于炎症及自身免疫病的研究。

TyK2-IN-2 (Compoud 18) is a potent and selective TYK2 inhibitor with IC 50 s of 7 nM, 0.1 μM and 0.05 μM for TYK2 JH2, IL-23 and IFNα, respectively. TyK2-IN-2 also inhibits phosphodiesterase 4 (PDE4) with an IC 50 of 62 nM. TyK2-IN-2 can be used for the research of inflammatory and autoimmune diseases.

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Tyk2 JH2 7 nM (IC50) PDE4 62 nM (IC50

A co-crystal structure of TyK2-IN-2 (Compoud 18) bound to the TYK2 JH2 is solved. First, limited room between C8 and the hinge is seen, consistent with the loss in affinity seen with groups larger than methylamino at this position. There are also hydrogen bonds revealed between the NH of the C8 methylamine and from N1 of the IZP core to the ‘hinge’ (Val690). Additional hydrogen bonds are observed from the oxygen of the C3 amide to Lys642 and to the hinge carbonyl of Glu688 through a bridging water molecule. The pocket proximal to the C3 amide of the TYK2 JH2 domain contains a combination of residues which are largely unique relative to the kinome such as a small residue (Ala671) under the “gatekeeper” (Thr687) and the replacement of the highly kinase-conserved DFG motif by DPG which alters the positioning of the conserved catalytic Lys642 and Asp759. The ability of the C3 amid

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Powder -20°C 3 years；4°C 2 years

[1]. Moslin R, et al. Identification of imidazo[1,2-b]pyridazine TYK2 pseudokinase ligands as potent and selective allosteric inhibitors of TYK2 signalling. Medchemcomm. 2016 Dec 15;8(4):700-712.

In Vitro: DMSO : ≥ 25 mg/mL (80.55 mM)配制储备液