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. They regulate cell functions including proliferation, gene expression, differentiation, mitosis, cell survival, and apoptosis. [1] MAP ...
5' AMP-activated protein kinase or AMPK or 5' adenosine monophosphate-activated protein kinase is an enzyme (EC 2.7.11.31) that plays a role in cellular energy homeostasis, largely to activate glucose and fatty acid uptake and oxidation when cellular energy is low. It belongs to a highly conserved eukaryotic protein family and its orthologues are SNF1 in yeast, and SnRK1 in plants. It consists ...
p38 mitogen-activated protein kinases (p38 MAPKs) are a family of serine/threonine-specific protein kinases that mediate cellular responses to a variety of...
Furthermore, visual representations like the one above help us fully grasp the concept of Activated Protein Kinases.
The upstream kinases of AMPK include LKB1, CaMKK and TAK1. With the rise in intracellular Ca 2 + and cAMP levels, these upstream kinases phosphorylate Thr172 of AMPK thereby activating it. Activated AMPK improves the glucose uptake either by phosphorylation of Akt or by increasing the GLUT-4 expression and translocation to the plasma membrane.
ctivated protein kinases monitor and maintain the cells energy supply, acting as a cellular fuel gauge. The AMP-activated protein kinase (AMPK) is a prime example, sensing the ratio of adenosine monophosphate (AMP) to ATP. When energy stores are low, indicated by a rise in the AMP:ATP ratio, AMPK becomes activated to restore balance.
As we can see from the illustration, Activated Protein Kinases has many fascinating aspects to explore.
Abstract. Conserved signaling pathways that activate the mitogen-activated protein kinases (MAPKs) are involved in relaying extracellular stimulations to intracellular responses.
In this Special Issue AMP-Activated Protein Kinases in Health and Disease, three original research articles and two comprehensive reviews illustrate both the depth and breadth of...
Mitogen-activated protein kinase kinase kinase 14, an enzyme and a critical kinase of the alternative NF-kappaB activation pathway.
