In this study, we performed mass spectometry on tibialis anterior muscle of male mice. WT and Mtm1 deficient (Mtm1-/y) mice as well as on Dnm2+/- mice and on Mtm1-/y mice crossed with Dnm2+/- (Mtm1-/yDnm2+/-) were analyzed. A longitudinal follow up was established by analyzing all the genotypes at E18.5, 2w and 7w.