Abstract
Bear and Cannan have reported1 new experiments with muscle exhibiting the so-called Lotmar–Picken2 X-ray pattern. We, too, recently founds a muscle (in our case a Mytilus adductor) which gave the pattern, and we have repeated their observation that after extraction with water it gave only the normal α-pattern characteristic of myosin. In addition, our specimen gave a number of new reflexions in the form of almost continuous circles, distinguished from the Lotmar–Picken reflexions in showing scarcely any orientation and in having a more grainy texture; these reflexions, too, disappeared on extraction with water. We attribute them to a new substance which we provisionally call ‘X’ An analysis of the diffraction pattern on these lines is given in the first three columns of the accompanying table.
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References
Bear, R. S., and Cannan, C. M. M., Nature, 168, 684 (1951).
Lotmar, W., and Picken, L. E. R., Helv. Chim. Acta, 25, 538 (1942).
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HUXLEY, H., KENDREW, J. Extractability of the Lotmar–Picken Material from Dried Muscle. Nature 170, 882 (1952). https://doi.org/10.1038/170882a0
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DOI: https://doi.org/10.1038/170882a0
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