Herman Branson
Encyclopedia
Herman Russell Branson was an African-American physicist
Physicist
A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...

, best known for his research on the alpha helix
Alpha helix
A common motif in the secondary structure of proteins, the alpha helix is a right-handed coiled or spiral conformation, in which every backbone N-H group donates a hydrogen bond to the backbone C=O group of the amino acid four residues earlier...

 protein structure, and was also the president of two colleges.

Early life

Branson received his B.S. from Virginia State College in 1936, and his Ph.D. in physics from the University of Cincinnati
University of Cincinnati
The University of Cincinnati is a comprehensive public research university in Cincinnati, Ohio, and a part of the University System of Ohio....

, under the direction of Boris Padowski, in 1939. After a stint at Dillard University
Dillard University
Dillard University is a private, historically black liberal arts college in New Orleans, Louisiana. Founded in 1930 incorporating earlier institutions that went back to 1869, it is affiliated with the United Church of Christ and the United Methodist Church....

, he joined Howard University
Howard University
Howard University is a federally chartered, non-profit, private, coeducational, nonsectarian, historically black university located in Washington, D.C., United States...

 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.

Work on protein structure

In 1948, Branson took a leave and spent time at the California Institute of Technology
California Institute of Technology
The California Institute of Technology is a private research university located in Pasadena, California, United States. Caltech has six academic divisions with strong emphases on science and engineering...

, in the laboratory of the chemist Linus Pauling
Linus Pauling
Linus Carl Pauling was an American chemist, biochemist, peace activist, author, and educator. He was one of the most influential chemists in history and ranks among the most important scientists of the 20th century...

. There he was assigned work on the structure of proteins, specifically to use his mathematical abilities to determine possible helical
Helix
A helix is a type of smooth space curve, i.e. a curve in three-dimensional space. It has the property that the tangent line at any point makes a constant angle with a fixed line called the axis. Examples of helixes are coil springs and the handrails of spiral staircases. A "filled-in" helix – for...

 structures that would fit both the available X-ray crystallography
Crystallography
Crystallography is the experimental science of the arrangement of atoms in solids. The word "crystallography" derives from the Greek words crystallon = cold drop / frozen drop, with its meaning extending to all solids with some degree of transparency, and grapho = write.Before the development of...

 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 helixes, 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
Robert Corey
Robert Brainard Corey was an American biochemist, mostly known for his role in discovery of the α-helix and the β-sheet with Linus Pauling. Also working with Pauling was Herman Branson. Their discoveries were remarkably correct, with even the bond lengths being accurate until about 40 years later...

, 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.

Later career and controversy

Branson went on to a significant career, eventually serving as president of Central State University
Central State University
Central State University, commonly referred to as "C-State", is a historically black university located in Wilberforce, Ohio, United States. It is the only public HBCU in Ohio.-History:...

 in Wilberforce, Ohio, from 1968–1970, and then president of Lincoln University
Lincoln University (Pennsylvania)
Lincoln University is the United States' first degree-granting historically black university. It is located near the town of Oxford in southern Chester County, Pennsylvania. The university also hosts a Center for Graduate Studies in the City of Philadelphia. Lincoln University provides...

 until his retirement in 1985. He was active in increasing federal funding for higher education, and helped found the National Association for Equal Opportunity in Higher Education in 1969.

In 1984 Branson wrote Pauling biographers Victor and Mildred Goertzel implying that his contribution to the alpha helix had been greater than the final paper indicated. “I took my work to Pauling who told me that he thought they [the proposed alpha and gamma helixes] were too tight, that he thought that a protein molecule should have a much larger radius so that water molecules could fit down inside and cause the protein to swell,” he wrote. “I went back and worked unsuccessfully to find such a structure.” When he received Pauling’s note with the draft manuscript, Branson wrote, “I interpreted this letter as establishing that the alpha and gamma in my paper were correct and that the subsequent work done was cleaning up or verifying. The differences were nil.” He added in his letter to the Goertzels that he “resented” the later attention lavished on Pauling and Corey. The conservative watchdog group Accuracy in Media
Accuracy in Media
Accuracy In Media is an American, non-profit news media watchdog founded in 1969 by economist Reed Irvine. AIM describes itself as "a non-profit, grassroots citizens watchdog of the news media that critiques botched and bungled news stories and sets the record straight on important issues that...

referred to the incident in an attack on Pauling in 1994 The available records, historical context, knowledge of the personalities involved, and studies of Pauling's laboratory and methods at the time have led most historians to accord greater credit to Pauling and Corey.
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