Binding of RecA to poly(dG-m5dC) and poly(dG-dC) under B- and Z-form conditions was studied using circular dichroism (CD) and linear dichroism (LD). LD revealed a quantitative binding of RecA to Mg2+-induced Z-form poly(dG-m5dC) with a stoichiometry of 3.1 base pairs/RecA monomer, which is slightly larger than the 2.7 base pairs observed for the B-form. The LD spectra indicate a preferentially ...

The latest memoir of the Society for Endocrinology presents the papers and discussions of a 1958 symposium on selected aspects of comparative and human sex morphology. It is gratifying that discussions of bacteria and invertebrate forms are included. Several authors examine the important question of genetic and hormonal controls of sex differentiation. The possibility of regulating the sex rati...

Thermodynamic features related to preparation and use of self-assemblies formed between multilamellar and unilamellar zwitterionic liposomes and polynucleotides with various conformation and sizes are presented. The divalent metal cation induced adsorption, aggregation and adhesion between single- and double-stranded polyribonucleotides and phosphatidylcholine vesicles was followed by different...