title: Why do protein kinase cascades have more than one level?
authors.forename: G C
authors.initials: GC
authors.lastname: Brown
authors.forename: J B
authors.initials: JB
authors.lastname: Hoek
authors.forename: B N
authors.initials: BN
authors.lastname: Kholodenko
mesh_terms: D000818:Animals; D010063:Ovum / Q000201:enzymology; D011494:Protein Kinases / Q000378:metabolism*; D015398:Signal Transduction; D014981:Xenopus / Q000378:metabolism*
chemical_list: D011494:Protein Kinases