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Mitogens can be either endogenous or exogenous factors. Endogenous mitogens function to control cell division is a normal and necessary part of the life cycle of multicellular organisms. For example, in zebrafish, an endogenous mitogen Nrg1 is produced in response to indications of heart damage. When it is expressed, it causes the outer layers ...
The first mitogen-activated protein kinase to be discovered was ERK1 in mammals. Since ERK1 and its close relative ERK2 are both involved in growth factor signaling, the family was termed "mitogen-activated". With the discovery of other members, even from distant organisms (e.g. plants), it has become increasingly clear that the name is a ...
The proteins responsible for signaling the activation of satellite cells are called mitogens. A mitogen is a small protein that induces a cell to enter the cell cycle. When the cells receive signals from the neurons, it causes the myofibers to depolarize and release calcium from the sarcoplasmic reticulum.
Mitogen-activated protein kinase kinase (also known as MAP2K, MEK, MAPKK) is a dual-specificity kinase enzyme which phosphorylates mitogen-activated protein kinase (MAPK). MAP2K is classified as EC 2.7.12.2 .
Pokeweed mitogen is a mitogen derived from the roots of Phytolacca americana. It functions as a lectin and a mitotic stimulus for the division of lymphocytes.
Mitochondrial biogenesis is the process by which cells increase mitochondrial numbers. [1] [2] It was first described by John Holloszy in the 1960s, when it was discovered that physical endurance training induced higher mitochondrial content levels, leading to greater glucose uptake by muscles. [3]
Using single-cell measurements, Yao et al., shows that the Rb–E2F pathway functions as a bistable switch to convert graded serum inputs into all-or-none E2F responses. [ 8 ] Growth and mitogen signals are transmitted downstream of the ERK pathway are incorporated into multiple positive feedback loops to generate a bistable switch at the level ...
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