MEK1/2

MEK1 and MEK2 are enzymes, or proteins, that play a crucial role in a cell's communication system called the MAPK/ERK pathway. This pathway helps regulate cell growth, division, and survival. When signals from the outside trigger this pathway, MEK1/2 act as messengers, transmitting signals from upstream components to activate other proteins that promote cell functions. Proper functioning of MEK1/2 is essential for normal cell behavior, while abnormalities can lead to diseases like cancer. They are often targeted in drug development to inhibit abnormal cell growth and treat certain cancers.