MAPK Cascade · Raf → MEK → ERK
unseel.com · three-tier kinase relay  ·  signal amplification
Tier
Active ERK 0
Stage
Ras (GTPase switch)
Raf — MAP3K
MEK — MAP2K
ERK — MAPK
Phosphate (P)
Unseel.com · MAPK Cascade Unseel.com · MAPK Cascade