Table 1.
MyHC isoform phenotypes
| Isoform | Contraction Rate | Primary Cellular Metabolism |
|---|---|---|
| I (aka βeta) | Slow | Oxidative (Red) |
| IIA | Fast | Mixed |
| IIB | Faster | Glycolytic (White) |
| IIX | Fastest | Glycolytic (White) |
| IIL (aka EO) | Fastest | Glycolytic (White) |
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