1 School of Biochemistry, University of Bristol, Bristol, UK; NIHR Blood and Transplant Research Unit, University of Bristol, Bristol, UK.
2 MRC Molecular Haematology Unit, MRC Weathe-rall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK.
3 School of Biochemistry, University of Bristol, Bristol, UK.
4 NIHR Blood and Transplant Research Unit, University of Bristol, Bristol, UK; Bristol Institute for Transfusion Sciences, National Health Service Blood and Transplant (NHSBT), Bristol, UK.
5 Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
6 Department of Research and Development, Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan.
7 Cell Engineering Division, RIKEN BioResource Research Center, Ibaraki, Japan.
8 School of Biochemistry, University of Bristol, Bristol, UK; NIHR Blood and Transplant Research Unit, University of Bristol, Bristol, UK. jan.frayne@bristol.ac.uk.