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Science 16 September 1966:
Vol. 153. no. 3742, pp. 1389 - 1390
DOI: 10.1126/science.153.3742.1389
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Articles

Crystal and Molecular Structure of Acetylselenocholine Iodide

Eli Shefter 1 and Olga Kennard 2

1 Department of Pharmaceutics, State University of New York at Buffalo, and Crystallographic Center, Roswell Park Memorial Institute, Buffalo
2 Medical Research Council External Scientific Staff, University Chemical Laboratory, Cambridge, England

The structure of acetylselenocholine iodide has been determined by x-ray crystallographic analysis. The molecule is in the trans conformation about the C—C bond of the choline residue. This conformation appears to explain the molecule's inability to give a positive cholinergic response when added to an electroplax preparation.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)