... Department of MolecularBiology and Biotechnology, University of Sheffield, Western Bank,Sheffield S10 2TN, UK.Fax: + 44 1 142 76 2687, Tel.: + 44 1 142 22 42 36,E-mail: d.hornby@shef.ac.uk(Received 4 July ... Rafferty3, Robert G. Lloyd2,Jane A. Grasby 4 and David P. Hornby11Transgenomic Research Laboratory, Krebs Institute, Department of Molecular Biology and Biotechnology, University of Sheffield,UK;2Institute ... 43 77 43 84. 31. Sedelnikova, S.E., Rafferty, J.B., Hargreaves, D., Mahdi, A.A.,Lloyd, R.G & Rice, D.W. (1997) Insights into the symmetry of theHolliday junction from the crystallisation of...