... version of GLUT4 under the control of a muscle-specific promoter. The exofacial HA-tag has enabled fluorescent labelling of only the GLUT4 exposed at the external surface. A distinction between sarcolemma labelling and transverse-tubule labelling has also been possible because the former compartment...

... and to the sarcolemma in striated muscle. We examined the contractile properties and morphology of fast-twitch skeletal muscle from mice lacking keratin 19. Tibialis anterior muscles of keratin-19-null mice showed a small but significant decrease in mean fiber diameter and in the specific force of tetanic contraction...

... cytoskeletal proteins (membrane skeletons) maintain the integrity and organization of the plasma membrane(sarcolemma) of striated muscle cells during the mechanical stresses associated with load-induced stretching and muscle contractions (reviewed by Benjamin and Ralphs, 2000 ; Berthier and Blaineau, 1997...