Contents

1. X-Ray Structure Analysis of Symmetric Protein Assemblies by Density Averaging in direct Space,
   R. Landenstein and A. Bacher
2. NMR Measurements of Enzyme Kinetics in vivo,
   K.M. Brindle
3. Lipid Selectivity and Integral Me0mbrane Protein Structure,
   D. Marsh
4. Cholesteryl Ester Formation by Lecithin: Cholesterol Acyltransferase,
   H. J. Pownall and L. C. Smith
5. Structure and Function of the Low Density Lipoprotein Receptor,
   A.L. Catapano
6. Liquid Crystalline Phases in Concentrated DNA Solutions,
   R.L. Rill
7. Chromatin Structure,
   A. Crane-Robinson, D.Z. Staynov, T. Hebbes and A.W. Thorne
8. Ligand Binding to Receptors and Trigering by Agonists,
   D. Hadži
9. How Drugs Affect the Activity of the (Ca2+-Mg2+)-ATPase,
   G. Lee
10. Aspects of Drug-DNA Computer Modeling,
    S. Neidle