X-ray crystallography has yielded the detailed three-dimensional geometry for a number of proteins. In order to interpret the atomic interactions within a protein molecule, it is usually necessary to construct molecular models. Another means of acquiring information concerning molecular structure wo
Computer approaches to protein structure III. Transformation of atomic coordinates
β Scribed by Andrew M. Tometsko
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 521 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0010-4809
No coin nor oath required. For personal study only.
β¦ Synopsis
The study of polypeptide and protein structure with computer-generated molecular models provides numerous advantages over conventional framework molecular models. One notable advantage is the dynamic nature of the computer model. Computer programs, discussed in this report, transform the coordinates of atoms of a peptide or protein, resulting in the rotation of the molecule about a fixed reference point in the x-y or y-r planes. The angle of rotation is increased by 5" after each structure is drawn on the cathode ray tube. As a result, for one complete revolution of the molecule, the computer draws 72 different images and the cathode ray tube is photographed to provide a permanent record of each structure.
π SIMILAR VOLUMES
The dynamic nature of computer models is discussed. In addition to varying the three dimensional position of atoms and the amount of detail presented in a given model, the computer is also able to change the position of the camera relative to the atoms of a protein model.Thus, thecameracould be posi