Figure 4. Increased UCP3 expression in the skeletal muscle mitochondria of synaptotagmin-7 KO mice.

(A, B) Representative immunoblots of UCP1 from brown adipose tissue (A) and UCP3 from skeletal muscle (B) of 20–24 week old synaptotagmin-7 KO and control mice. Relative densitometric quantification was normalized against beta-tubulin. Each set of samples was from 3–5 mice. (C) Synaptotagmin-7 (arrows) was not detected in skeletal muscle. Data are presented as means ± SEM. **, P<0.01.