tokens: The signalling molecules Wnt1 and Sonic hedgehog , implicated in the activation of Myf5 in myogenic progenitor cells in the somite , are also produced in the viscinity of the Myf5 expression domain in the mesencephalon .
folded_tokens: the signalling molecule wnt1 and sonic hedgehog , implicate in the activation of myf5 in myogenic progenitor cell in the somite , be also produce in the viscinity of the myf5 expression domain in the mesencephalon .