1. Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, U.K.
2. Centre of Membrane Proteins and Receptors (COMPARE), University of Birmingham and University of Nottingham, Midlands, University of Birmingham, Birmingham B15 2TT, U.K.
3. School of Biotechnology and Biomolecular Science, University of New South Wales, Sydney, Australia