The structure of synthetic polypeptides. I. The transform of atoms on a helix

1952/09/10 by W. G. Cochran, Francis Crick, V. Vand · 3 citations
Materials Science · Agricultural and Biological Sciences · #Diatoms and Algae Research #Advanced Scientific Research Methods

paper · pdf · doi:10.1107/s0365110x52001635

openalex publication_date 1952/09/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The formulae are given for the Fourier transforms of a number of helical structures; namely, a thin helical wire, a set of identical atoms spaced at regular intervals on a helix, and the general case of a group of atoms repeated by the operation of a non-integer screw. General predictions are made concerning the intensities of the X-ray diffraction pattern of the synthetic polypeptide poly-7-methyl-L-glutamate, assuming that its structure is based on the a-helix suggested by Pauling & Corey.

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• Molecular Structure of Nucleic Acids: Molecular Structure of Deoxypentose Nucleic Acids
• A brief history of macromolecular crystallography, illustrated by a family tree and its Nobel fruits
• Francis Crick [wikipedia]