Herman Russell Branson

Herman Russell Branson (August 14 1914 – June 7, 1995) was an African-American physicist, chemist, best known for his research on the alpha helix protein structure, and was also the president of two colleges.

Branson received his B.S. from Virginia State College in 1936, and his Ph.D. in physics from the University of Cincinnati, under the direction of Boris Padowski, in 1939. After a stint at Dillard University, he joined Howard University in 1941 as an assistant professor of physics and chemistry. He remained at Howard for 27 years, achieving increasingly important positions, eventually becoming head of the physics department, director of a program in experimental science and mathematics, and working on the Office of Naval Research and Atomic Energy Commission Projects in Physics at Howard University. One of his students would include Marie Maynard Daly who was the first woman of color in the United States to earn her doctorate in Chemistry.

In 1948, Branson took a leave and spent time at the California Institute of Technology, in the laboratory of the chemist Linus Pauling. There he was assigned work on the structure of proteins, specifically to use his mathematical abilities to determine possible helical structures that would fit both the available X-ray crystallography data and a set of chemical restrictions outlined by Pauling. After some months of work, Branson handed in a report narrowing the possible structures to two helices: a tighter coil Pauling termed "alpha," and a looser helix called "gamma." Branson then returned to Howard to work on other projects. Some months later he received a letter from Pauling along with a draft manuscript of a paper detailing the two helixes, with Branson listed as third author (after Pauling and his assistant Robert Corey, the laboratory's expert in transforming X-ray data into precise models). Pauling asked for suggestions; it is likely that Branson approved the paper as written, although there is no reply on record.

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