School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom, Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.|School of Chemistry, University of Leeds, Leeds, United Kingdom.|Hepatopancreatobiliary Transplant Unit, St. Jamess University Hospital, Leeds, United Kingdom.|Hepatopancreatobiliary Transplant Unit, St. Jamess University Hospital, Leeds, United Kingdom.|Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom, School of Chemistry, University of Leeds, Leeds, United Kingdom.|School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom, Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, United Kingdom.