Head Activator
The head activator peptide is a hormone with morphogenic effect in Hydra
Gln-Pro-Pro-Gly-Gly-Ser-Lys-Val-Ile-Leu-Phe
Identical peptide has been isolated from humans and other mammals
In hydra, head activator peptide…
- influences head and bud formation
- stimulates head regeneration
- controls determination of undifferentiated stem cells
Mitogen; stimulates cells in G2 phase to proceed through mitosis