Margaret Oakley Dayhoff

Margaret Oakley Dayhoff, born on March 11, 1925, was a trailblazer in the realms of biophysics and bioinformatics. As a professor at Georgetown University Medical Center, she made significant contributions to the field of biochemistry while working at the National Biomedical Research Foundation. Her innovative approach combined mathematics and computational techniques to advance biological and medical research.

Throughout her career, Dayhoff was dedicated to harnessing emerging computational technologies to enhance our understanding of biology. She was instrumental in the development of protein and nucleic acid databases, creating essential tools for data interrogation. Among her notable achievements was the introduction of the point accepted mutations (PAM) substitution matrix, which played a crucial role in the analysis of amino acid sequences.

Dayhoff earned her PhD in chemistry from Columbia University, where she developed computational methods to calculate molecular resonance energies of various organic compounds. Following her postdoctoral studies at the Rockefeller Institute and the University of Maryland, she joined the National Biomedical Research Foundation in nineteen fifty-nine, marking the beginning of a remarkable career.

In addition to her research, Dayhoff broke barriers as the first woman to hold office in the Biophysical Society, serving as both secretary and president. Her legacy continues to inspire future generations of scientists in the fields of biochemistry and bioinformatics.