DERIVATION OF ATOMIC CO-ORDINATES IN HELICAL STRUCTURES

Abstract

A general method is developed for obtaining the coordinates of atoms in helical structures. The helix is treated as the repetition of a structural unit by an n-fold screw axis, where n is continuously variable. The coordinates are needed in complex structures such as proteins for the calculation of bond angles. The specific form in which the derivation is presented was deveoper for the analysis of polypeptide chain helices. Graphs are given which facilitate the use of the derived expressions.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1953
Accession Number
AD0019939

Entities

People

  • H.j. Grenville-wells

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Biomedical

DTIC Thesaurus Topics

  • Birds
  • Construction
  • Contracts
  • Crystal Structure
  • Crystals
  • Diameters
  • Distribution Functions
  • Equations
  • Government Procurement
  • Governments
  • High Angles
  • Insulation
  • Massachusetts
  • Procurement
  • Single Crystals
  • Translations

Fields of Study

  • Chemistry

Readers

  • Calculus or Mathematical Analysis
  • Molecular Genetics