Prof. Dr. Carlos Gutierrez-Merino obtained his licentiate degree in Chemistry in 1974 at the Universidad Complutense de Madrid and was immediately incorporated into the CSIC as a predoctoral student in 1975. He defended his PhD thesis in 1977. After a short stage as a lecturer at the Universidad Autónoma de Barcelona, he moved to the United States in 1978 to the Departments of Pharmacology and Biochemistry in the Faculty of Medicine at the University of Virginia. He obtained a full Professor position in 1989 in the Biochemistry and Molecular Biology Department at the School of Sciences at the Universidad de Extremadura. He was also Director of the Biochemistry and Molecular Biology Department from 1987 to 1995 and Research Vice-Rector at the University of Extremadura from 1995 to 1999. He was also a Board Member of the Spanish Biochemical Society and of the Spanish Biophysical Society in the 1990s. He has made major scientific advances in the study of membrane proteins’ structure and function. These include Ca2+-ATPase pumps, plasma membrane L-type calcium channels, microsomal cytochrome P450s reductase, and plasma membrane cytochrome b5 reductase, as well as metalloproteins, glycogen phosphorylase, natural antioxidants, Aβ amyloid peptides and the functional characterization of the neuronal plasma membrane nanodomains.