... University of Sydney, Westmead, New South Wales, Australia and 4Department of Medicine, University of Calgary, N.W. Calgary, Alberta, CanadaEmail: Haran Sivakumaran - haran.sivakumaran@qimr.edu.au; ... domainmutation has been reported to suppress but not eliminatetransactivation ability [15-17], and R52 participates in thebinding of Tat to TAR and is involved in the nuclear local-isation of ... Brenda Beckholdt4, Nitin K Saksena3 and David Harrich*1Address: 1Division of Infectious Diseases and Immunology, Queensland Institute of Medical Research, Brisbane, Queensland, Australia,...