“The 1st FEBS3+ Joint Meeting of the French-Portuguese-Spanish Biochemical and Molecular Biology Societies” Congress, to be held 23-26 October 2017 in Barcelona. The Congress is organized by the French Society of Biochemistry and Molecular Biology (SFBBM), the Portuguese Society of Biochemistry (SPB) and the Spanish Society of Biochemistry and Molecular Biology (SEBBM), with financial support from the Federation of European Biochemical Societies (FEBS).