Mer 蛋白, Human (HEK293, mFc)

Mer Protein, a receptor tyrosine kinase, transduces signals by binding ligands like LGALS3, TUB, TULP1, or GAS6, regulating cell survival, migration, differentiation, and apoptotic cell phagocytosis (efferocytosis). Ligand binding induces MERTK autophosphorylation, creating docking sites for downstream molecules. Activated by ligand, Mer interacts with GRB2 or PLCG2, inducing MAPK1, MAPK2, FAK/PTK2, or RAC1 phosphorylation. MERTK signaling is implicated in macrophage clearance of apoptotic cells, platelet aggregation, cytoskeleton reorganization, and engulfment. In the retinal pigment epithelium (RPE), Mer regulates phagocytosis of rod outer segment fragments. Moreover, Mer inhibits Toll-like receptors (TLRs)-mediated innate immune responses by activating STAT1, inducing SOCS1 and SOCS3 production. Mer Protein, Human (HEK293, mFc) is the recombinant human-derived Mer protein, expressed by HEK293, with C-mFc labeled tag. The total length of Mer Protein, Human (HEK293, mFc) is 485 a.a., with molecular weight of 115-140 kDa.

Mer 蛋白是一种受体酪氨酸激酶，通过与各种配体（包括 LGALS3、TUB、TULP1 或 GAS6）结合来转导来自细胞外基质的信号。它参与调节多种生理过程，包括细胞存活、迁移、分化和凋亡细胞的吞噬作用（胞吞作用）。细胞表面的配体结合诱导 MERTK 在其胞内结构域上的自身磷酸化，为下游信号分子创建对接位点。被配体激活后，Mer 与 GRB2 或 PLCG2 相互作用并诱导 MAPK1、MAPK2、FAK/PTK2 或 RAC1 磷酸化。MERTK 信号传导涉及巨噬细胞清除凋亡细胞、血小板聚集、细胞骨架重组和吞噬。在视网膜色素上皮（RPE）中，它充当视杆细胞外节片段吞噬作用的调节器。此外，Mer 在通过激活 STAT1 抑制 Toll 样受体 (TLR) 介导的先天免疫反应中发挥着至关重要的作用，STAT1 选择性诱导细胞因子信号转导 SOCS1 和 SOCS3 抑制剂的产生。

Human

HEK293

C-mFc

Q12866 (A21-I505)

10461  [NCBI]

115-140 kDa

Greater than 95% as determined by Tris-Bis PAGE.

<1 EU/μg, determined by LAL method.