title: Proteins.
authors.affiliation: Hans Eklund, Department of Molecular Biology, Swedish University of Agricultural Sciences, Biomedical Center, Box 590, S-75124, Uppsala, Sweden. E-mail: hasse@xray.bmc.uu.se. T Alwyn Jones, Department of Molecular Biology, Biomedical Centre, Uppsala University, Box 590, S-75124 Uppsala, Sweden. E-mail: alwyn@xray.bmc.uu.se.
authors.initials: H
authors.lastname: Eklund
authors.initials: TA
authors.lastname: Jones