[1] Univ Bristol, Henry Wellcome Signalling Labs, Bristol BS8 1TD, Avon, England
[2] Univ Bristol, Dept Biochem, Bristol BS8 1TD, Avon, England
[3] Univ Padua, Dept Biomed Sci, I-35121 Padua, Italy
[4] Univ Padua, CNR, Ctr Study Biol Membranes, I-35121 Padua, Italy
[5] Univ Ferrara, Dept Expt & Diagnost Med, Sect Gen Pathol, I-44100 Ferrara, Italy
[6] Univ Ferrara, Interdisciplinary Ctr Study Inflammat, I-44100 Ferrara, Italy