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. 2010 Jan 18;588(Pt 5):773–784. doi: 10.1113/jphysiol.2009.185835

Figure 1. Example of electrophoretic (SDS-PAGE) separation of myosin heavy chain (MHC) isoforms in bioptic samples of isolated fibres from 14-HU rats.

Figure 1

All samples were pure myosin extracted from single muscle fibre. Gels were Coomassie stained. Lane 1 shows a mixed rat fibre sample used as a reference; lane 2, pure slow type I fibre; lane 3, pure fast type IIa fibre; lane 4, hybrid type I–IIa fibre. No type IIx fibres were detected in our experiments.