The effect of cross‐innervation on the tropomyosin composition of rabbit skeletal muscle
- 21 February 1983
- journal article
- Published by Wiley in FEBS Letters
- Vol. 152 (2) , 282-286
- https://doi.org/10.1016/0014-5793(83)80396-2
Abstract
Soleus, semitendinosus and crureus muscles of the rabbit were found to contain α- and β-tropomyosin subunits and additional forms that have been provisionally designated γ and δ. Extensor digitorum longus and psoas muscles contained only α and β subunits, the relative proportions of which varied between single fibres of psoas muscle. On cross-innervation of rabbit soleus and extensor digitorum longus muscles, the fraction of the total tropomyosin present as the β subunit remained constant. The relative proportions of α, γ and δ subunits changed as would be expected from the change in speed that occurred.Keywords
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