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FEBS Lett. 1995 Jul 10;368(1):55-8.

Isoforms of 14-3-3 protein can form homo- and heterodimers in vivo and in vitro: implications for function as adapter proteins.

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  • 1Division of Protein Structure, National Institute for Medical Research, London, UK.

Abstract

14-3-3 proteins play a role in many cellular functions: they bind to and regulate several proteins which are critical for cell proliferation and differentiation. 14-3-3 proteins exist as dimers, and in this study we have shown that diverse 14-3-3 proteins can form both homo- and heterodimers in vitro (by cross-linking studies) and in vivo (by coimmunoprecipitation and Western blot analysis); this interaction is mediated solely through the N-terminal domain of the proteins. The composition of 14-3-3 dimers within a cell may play a key part in the role of this family of proteins as modulators or adapters which facilitate the interaction of distinct components of signalling pathways.

PMID:
7615088
[PubMed - indexed for MEDLINE]
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