Molecular graphics: application to the structure determination of a snake venom neurotoxin

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Science  30 Sep 1977:
Vol. 197, Issue 4311, pp. 1378-1381
DOI: 10.1126/science.897675


Atomic coordinates have been determined for a snake venom alpha-neurotoxic protein by fitting a molecular model to a crystallographically derived 2.2-angstrom electron density map. The fitting was carried out entirely on a computer-operated molecular, graphics system without going through any mechanical model stage.