There are indeed a number of proteins involved in ERK signaling, that can bind to multiple elements of the pathway: MP1 binds both MKK1/2 and ERK1/2, KSR1 and KSR2 can bind B-Raf or c-Raf, MKK1/2 and ERK1/2.
Hai, efectivamente, varias proteínas que interveñen na vía de sinalización de ERK, que poden unirse a múltiples elementos da vía: a MP1 únese tanto a MKK1/2 coma ERK1/2, KSR1 e KSR2 poden unirse a B-Raf ou c-Raf, MKK1/2 e ERK1/2.