1. Signaling Pathways
  2. GPCR/G Protein
  3. G Protein-coupled Receptor Kinase (GRK)

G Protein-coupled Receptor Kinase (GRK) (G蛋白偶联受体激酶)

G protein-coupled receptor kinases (GRKs) are a family of serine/threonine kinases that phosphorylate agonist-bound, or activated, G protein-coupled receptors (GPCRs) as their primary substrates. On the basis of their sequence homology, GRKs can be subclassified into three groups: the visual subfamily (GRK1 and GRK7), the GRK4 subfamily (GRK4, GRK5 and GRK6) and the β-AR kinase (βARK) subfamily (GRK2 and GRK3). GRK1 and GRK7 are primarily expressed in retinal photoreceptor cells, whereas GRK4 is most abundantly expressed in the testes. GRK2, GRK3 and GRK5 are ubiquitously expressed, albeit to various extents in different tissues. In the heart, GRK2 and GRK5 are most prominent, whereas GRK3 and GRK6 are expressed at low levels. Functionally, all GRKs mediate the uncoupling and internalization of activated GPCRs. All GRKs are primarily localized to the cytosol and plasma membrane. GRK1, GRK4, GRK5, GRK6 and GRK7 are basally localized to the membrane. Conversely, GRK2 and GRK3 are primarily localized to the cytosol and translocate to the membrane after receptor stimulation.

G Protein-coupled Receptor Kinase (GRK) 相关产品 (5):

目录号 产品名 作用方式 纯度
  • HY-143248
    KR-39038 Inhibitor
    KR-39038 是一种口服有效的 GRK5 (G 蛋白偶联受体激酶 5) 抑制剂,IC50 为 0.02 μM。在新生儿心肌细胞中,KR-39038 通过抑制 HDAC5 通路,显著抑制血管紧张素 II 诱导的细胞肥大。KR-39038 具有明显的抗心肌肥厚作用和改善心功能。KR-39038 可用于心力衰竭的研究。
  • HY-150021
    GRK5-IN-3 Inhibitor
    GRK5-IN-3 是 G 蛋白偶联受体激酶 5 (GRK5) 的共价抑制剂。GRK5-IN-3 对 GRK5GRK6 有显著的抑制作用,IC50 分别为 0.22 μM 和 0.41 μM。
  • HY-150022
    GRK5-IN-4 Inhibitor
    GRK5-IN-4 (Compound 16d, CCG-265328) 是一种有效的选择性共价 GRK5 (G 蛋白偶联受体激酶 5) 抑制剂,其 IC50 为 1.1 μM。GRK5-IN-4 对 GRK5 的选择性是 GRK2 的90倍。GRK5-IN-4 可用于心力衰竭研究。
  • HY-150040
    CCG-273463 Inhibitor
    CCG-273463 是一种有效的、共价的 GRK5 选择性抑制剂,IC50 值为 9 nM。CCG-273463 可用于心力衰竭、肥厚型心肌病和癌症的研究。
  • HY-150039
    CCG-271423 Inhibitor
    CCG-271423 是一种有效的选择性 GRK5 抑制剂,GRK5 和 GRK2 的 IC50 值分别为 0.0021 μM 和 44 μM。CCG-271423 抑制心肌细胞收缩能力,降低 Ca2+瞬态。
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