Investigating the structure of the factor B vWF-A domain/CD55 protein-protein complex using DEER spectroscopy: successes and pitfalls.

We would like to thank Christian Bauer at MPI Mainz and Dr Jeff Harmer in Oxford (now at the University of Queensland) for EPR technical support. We thank Dr Jo Nettleship at the Oxford Protein Production Facility for mass spectrometry and Oxford Biochemistry DNA Sequencing Service for DNA sequencing. We gratefully acknowledge Prof. Axel Brunger at Stanford University for providing us with the CNS docking scripts and offering further support and advice. JEL thanks the Royal Society for a University Research Fellowship and University College Oxford for a Junior Research Fellowship. We thank the EPSRC for funding the Centre for Advanced Electron Spin Resonance and this work [grant number EP\DO48559\1]. The Wellcome Trust are thanked for funding to SML and her group.