Figure 1

Myosin heavy chain (MHC) isoforms in porcine rectus abdominis muscle.
Either 75 μg or 100 μg of total protein from two homogenized porcine abdominal wall muscle samples were run on an 8% polyacrylamide SDS gel alongside with a murine soleus muscle sample (a pure slow-twitch muscle). Coomassie-stained lanes reveal identical MHC isoform expression patterns in murine soleus and porcine rectus abdominis muscles, verifying the latter as a slow-twitch muscle.