Akt
The Ser/Thr kinase AKT, also known as protein kinase B (PKB) has been the focus of tens of thousands of studies in diverse fields of biology and medicine. Activation of PI3K by extracellular stimuli results in activation of AKT in virtually all cells and tissues. The canonical pathway leading to AKT activation is initiated by the stimulation of receptor tyrosine kinases (RTK) or G protein coupled receptors (GPCR) leading to plasma membrane recruitment and activation of one or more isoforms of the class I PI3K family.Activation of PI3K results in the phosphorylation of two key residues on AKT1, T308 in the activation, or T-loop, of the catalytic protein kinase core, and S473 in a C-terminal hydrophobic motif. Phosphorylation of both residues is required for maximal activation of the kinase.
Regulation also occurs on corresponding residues in AKT2 (T309 and S474) and AKT3 (T305 and S472). In addition to signal termination by lipid phosphatases such as PTEN and INPP4B, two critical protein phosphatases function to directly inactivate AKT. There have been many advances in our knowledge of the upstream regulatory inputs into AKT, key multifunctional downstream signaling nodes (GSK3, FoxO, mTORC1), which greatly expand the functional repertoire of Akt, and the complex circuitry of this dynamically branching and looping signaling network that is ubiquitous to nearly every cell in our body. Mouse and human genetic studies have also revealed physiological roles for the AKT network in nearly every organ system. The comprehension of AKT regulation and functions is particularly important given the consequences of AKT dysfunction in diverse pathological settings, including developmental and overgrowth syndromes, cancer, cardiovascular disease, insulin resistance and type-2 diabetes, inflammatory and autoimmune disorders, and neurological disorders.
References
1.Manning BD, et al. Cell. 2017 Apr 20;169(3):381-405. doi: 10.1016/j.cell.2017.04.001.
Regulation also occurs on corresponding residues in AKT2 (T309 and S474) and AKT3 (T305 and S472). In addition to signal termination by lipid phosphatases such as PTEN and INPP4B, two critical protein phosphatases function to directly inactivate AKT. There have been many advances in our knowledge of the upstream regulatory inputs into AKT, key multifunctional downstream signaling nodes (GSK3, FoxO, mTORC1), which greatly expand the functional repertoire of Akt, and the complex circuitry of this dynamically branching and looping signaling network that is ubiquitous to nearly every cell in our body. Mouse and human genetic studies have also revealed physiological roles for the AKT network in nearly every organ system. The comprehension of AKT regulation and functions is particularly important given the consequences of AKT dysfunction in diverse pathological settings, including developmental and overgrowth syndromes, cancer, cardiovascular disease, insulin resistance and type-2 diabetes, inflammatory and autoimmune disorders, and neurological disorders.
References
1.Manning BD, et al. Cell. 2017 Apr 20;169(3):381-405. doi: 10.1016/j.cell.2017.04.001.
PI3K/Akt/mTOR signaling
Akt
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GSK-690693
产品货号 : M16713
cas no: 937174-76-0
一种有效的 ATP 竞争性泛 AKT 抑制剂,针对 AKT1、2 和 3 的 IC50 值分别为 2、13 和 9 nM。 -
Akt1Akt2-IN-17
产品货号 : M16440
cas no: 893422-47-4
一种有效的选择性 Akt1 和 Akt2 双重抑制剂,IC50 分别为 3.5 nM 和 42 nM。 -
2,3-Butanedione 2-Monoxime
产品货号 : M15109
cas no: 57-71-6
Perifosine (KRX-0401; D-21266; NSC 639966) 是一种新型 Akt 抑制剂,IC50 为 4.7μM,靶向 Akt 的 pleckstrin 同源结构域。 -
Lupeol
产品货号 : M14962
cas no: 545-47-1
羽扇豆醇是一种五环三萜,具有抗炎和抗氧化活性。 -
Triciribine
产品货号 : M14234
cas no: 35943-35-2
Triciribine 是一种 DNA 合成抑制剂,还抑制 Akt 和 HIV-1,IC50 分别为 130 nM 和 20 nM。