..., Conner & Schmid 2003, Nabi & Le 2003) and, finally, the fine-tuning of components of the cell signalling machinery located on the cell surface (Simons & Ikonen 1997, Okamoto et al. 1998, Simons & Toomre 2000). A number
of receptor tyrosine kinases (RTKs), G-protein coupled receptors (GPCRs), G...