Molecular biology is one of the most rapidly growing develo-ping and at thesame time most exciting disciplines. The keyto molecular biology lies in the understanding of nucleic a-cids – their structure, function, and interaction with pro-teins. Nucleic Acids and Molecular Biology keeps scientistsinformed of the explosively growing information and complieswith with the great interest in this field by offering acontinued high standard of review. A substantial part ofthis volume has been devoted to the analysis of differentaspects of nucleic acid-protein-interactions including RNA-protein-interaction.