Fig. 5. Monodelphis domestica UCP-3 expression. The expression of the mRNA encoding a putative homolog of uncoupling protein 3 (Md-UCP3) was induced in hindlimb skeletal muscle of cold-acclimated animals, as detected by northern blot. Intensity of 28S RNA, stained with Ethidium Bromide, is included as a loading control.