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A mitogen-activated protein kinase (MAPK or MAP kinase) is a type of serine/threonine-specific protein kinases involved in directing cellular responses to a diverse array of stimuli, such as mitogens, osmotic stress, heat shock and proinflammatory cytokines.
The activators of p38 (MKK3 and MKK6), JNK (MKK4 and MKK7), and ERK (MEK1 and MEK2) define independent MAP kinase signal transduction pathways. [1] The acronym MEK derives from M APK/ E RK K inase. [ 2 ]
Mitogen Activated Protein (MAP) kinase kinase kinase (MAPKKK, [1] MKKK, [2] M3K, [3] or, MAP3K [4]) is a serine/threonine-specific protein kinase which acts upon MAP kinase kinase. Subsequently, MAP kinase kinase activates MAP kinase. Several types of MAPKKK can exist but are mainly characterized by the MAP kinases they activate.
One of the first proteins known to be phosphorylated by ERK was a microtubule-associated protein (MAP). As discussed below, many additional targets for phosphorylation by MAPK were later found, and the protein was renamed "mitogen-activated protein kinase" (MAPK). The series of kinases from RAF to MEK to MAPK is an example of a protein kinase ...
The Extracellular Signal-Regulated Kinases; MAP Kinase Resource Archived 2021-04-15 at the Wayback Machine. Extracellular+Signal-Regulated+MAP+Kinases at the U.S. National Library of Medicine Medical Subject Headings (MeSH) MAPK1; MAPK3 Info with links in the Cell Migration Gateway Archived 2014-12-11 at the Wayback Machine
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mTOR inhibitors are a class of drugs used to treat several human diseases, including cancer, autoimmune diseases, and neurodegeneration. They function by inhibiting the mammalian target of rapamycin (mTOR) (also known as the mechanistic target of rapamycin), which is a serine/threonine-specific protein kinase that belongs to the family of phosphatidylinositol-3 kinase (PI3K) related kinases ...
Oxidative stress is the most powerfully specific stress activating p38 MAPK. [7] Abnormal activity (higher or lower than physiological) of p38 has been implicated in pathological stresses in several tissues, that include neuronal, [8] [9] [10] bone, [11] lung, [12] cardiac and skeletal muscle, [13] [14] red blood cells, [15] and fetal tissues. [16]