My research activity has mainly concerned pyridoxal phosphate-dependent enzymes and vitamin B6 metabolism in bacteria and humans. Concerning PLP-dependent enzymes, I have dealt with their catalytic mechanism, catalytic promiscuity and evolution of catalytic activities, the design and experimentation of specific inhibitors, the mechanism of addition of PLP to apoenzymes and the folding mechanism. At the moment, I am mainly focused on the regulation of PLP biosynthesis and salvage pathways in bacteria and humans. In particular, I am interested in enzyme regulation mechanisms and transcriptional regulation, in the mechanism of PLP transfer to apoenzymes and in neurological disorders related to PLP metabolism.
I teach Biochemistry, Biochemical Methods and Enzymology in Biological Sciences, Industrial Chemistry and Biotechnology courses at Sapienza University.
Dr. Isabel Varela-Nieto graduated and earned her doctorate in Chemistry, Biochemistry Section, at the University Complutense of Madrid (Spain). She has been a visiting guest scientist at the Medical Schools of Uppsala (FEBS Fellow, Sweden) and San Diego (MEC Sabbatical, USA). She is Professor of Research at the CSIC and group leader at the CIBER of rare diseases (CIBERER, ISCIII) in Madrid. From the early 1990s she has been studying hearing neurobiology and IGF-1 actions. She was the first Chair of the SEBBM Science for Society working group with which she actively collaborates, and member of the FEBS Network working group. She is currently the president of the SEBBM, a member of the FEBS Science and Society Committee and of the ISC Finances Committee.