The proposed series on "Molecules of Biological Interest in the Gas Phase"" combines the interests of three groups belonging to different scientific disciplines: molecular physicists, quantum chemists and biochemists involved in modelling of biomolecular structures and mechanisms. As far as we know, these conferences would be the first events ever gathering these three different communities that have their own specialised meetings, and thus do not have the opportunity to know each other's. They will be a forum for the confrontation and exchange of viewpoints on common fundamental problems and applications that they address independently with different customs and scientific languages.