Twelve classical signal paths:
1)MAPK signal path 2)PI3K/ALK signal path
3)RTK related signal pathway 4)TGF-β superfamily signal pathway
5)Wnt signaling pathway 6)NF-kB signaling pathway
7) Notched signal path 8)Hippo signal path
9)Hedgehog signaling pathway 10) Nuclear receptor-related pathway (hormones)
1 1)JAK/ statistical signal path 12)AMPK signal path
MAPK signal path (transportation hub)
Mitogen-activated protein kinase
Essence: kinase, responsible for catalyzing phosphorylation.