Exp Cell Res 1985 Jan 01;1561:45-56. doi: 10.1016/0014-4827(85)90260-5.

Expression of meta-vinculin associated with differentiation of chicken embryonal muscle cells.

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We confirmed the existence of meta-vinculin, which cross-reacts immunologically with vinculin and has a slightly higher molecular weight than the latter. The immunological cross-reactivity between meta-vinculin and vinculin was confirmed with monoclonal antibodies against vinculin. Furthermore, we found that this protein is present only in either smooth or striated muscle, but is absent in non-muscular tissues and that the expression of this protein is associated with a differentiation of muscle cells either in vivo or in vitro. Microinjection experiments of fluorescently labelled vinculin and/or meta-vinculin into the cytoplasm of cultured myotubes suggested that meta-vinculin may be localized at sites similar to vinculin in muscle cells.

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