Abstract

Phosphorylated derivatives of the phospholipid phosphatidylinositol, or phosphoinositides, are implicated in many aspects of cell function. Binding of phosphoinositides that are localized within cell membranes to soluble protein ligands allows spatially selective regulation at the cytoplasm–membrane interface. Recently, studies that relate phosphoinositide production to membrane domains are converging with those that show effects of these lipids on the assembly of cellular actin, and are therefore linking membrane and cytoskeletal structures in new ways.

Author affiliations

1. Institute for Medicine and Engineering (IME), University of Pennsylvania, 1010 Vagelos Laboratories, 3340 Smith Walk, Philadelphia, Pennsylvania 19104, USA.
2. Department of Zoological Cell Biology, The Wenner-Gren Institute, Stockholm University, Stockholm Sweden S-10691.

Correspondence to: Paul A. Janmey¹ Email: janmey@mail.med.upenn.edu

Correspondence to: Uno Lindberg² Email: uno@cellbio.su.se

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