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versión impresa ISSN 0327-9545


ZOU, Yi  y  ZHONG, Wenping. A likely role for a novel PH-domain containing protein, PEPP2, in connecting membrane and cytoskeleton. Biocell [online]. 2012, vol.36, n.3, pp.127-132. ISSN 0327-9545.

PH domains (pleckstrin homology) are well known to bind membrane phosphoinositides with different specificities and direct PH domain-containing proteins to discrete subcellular apartments with assistances of alternative binding partners. PH domain-containing proteins are found to be involved in a wide range of cellular events, including signalling, cytoskeleton rearrangement and vesicular trafficking. Here we showed that a novel PH domain-containing protein, PEPP2, displayed moderate phosphoinositide binding specificity. Full length PEPP2 associated with both plasma membrane and microtubules. The membrane-associated PEPP2 nucleated at cell-cell contacts and the leading edge of migrating cells. Overexpression of PEPP2 increased membrane microviscosity, indicating a potential role of PEPP2 in regulating function of membrane and microtubules.

Palabras clave : Microtubule; Membrane; Phosphoinositide; Microviscosity; Wortmannin.

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