title: Protein signals frog embryo to start getting a head.
authors.forename: T
authors.initials: T
authors.lastname: Watson
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D004625:Embryo, Nonmammalian / Q000196:embryology*; D004627:Embryonic Induction; D006023:Glycoproteins / Q000235:genetics / Q000502:physiology*; D006257:Head / Q000196:embryology; D008648:Mesoderm / Q000502:physiology; D012333:RNA, Messenger / Q000235:genetics; D016212:Transforming Growth Factor beta / Q000502:physiology; D029867:Xenopus Proteins; D014982:Xenopus laevis / Q000196:embryology
chemical_list: C513103:GDF1 protein, Xenopus; D006023:Glycoproteins; D012333:RNA, Messenger; D016212:Transforming Growth Factor beta; D029867:Xenopus Proteins