In vertebrate striated muscle, myosin is composed of 2 heavy chains of about 200,000 daltons each and 4 light chains of about 20,000 daltons each.
Members
| MYL1 | MYL2 | MYL3 | MYL4 | MYL5 | MYL6 | MYL7 |
Pathology
| Gene | mutations in | OMIM |
| MYL2 | mid-left ventricular chamber type of hypertrophic cardiomyopathy | MIM.160790 |
| MYL3 | mid-left ventricular chamber type of hypertrophic cardiomyopathy | MIM.160790 |