Abstract
As is well known, ferritin, and its protein moiety, apoferritin, can be readily crystallized in aqueous solutions of cadmium sulphate to yield isotropic (cubic) crystals, most commonly octahedra1. Platy orthorhombic horse ferritin has been described by Harrison2, the material having been crystallized originally with cadmium sulphate. A corresponding orthorhombic form, of horse apoferritin hadnot been found. I wish to report that an anisotropic, pseudocubic form of horse apoferritin can be regularly produced by means of concentrated solutions of cæsium chloride.
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References
Granick, S., Chem. Rev., 38, 379 (1946).
Harrison, P. M., J. Mol. Biol., 6, 404 (1963).
Labaw, L. W., and Wyckoff, R. W. G., Biochim. Biophys. Acta, 25, 263 (1957).
Richter, G. W., Lab. Invest., 12, 1026 (1963).
Richter, G. W., J. Biophys. Biochem. Cytol., 4, 55 (1958).
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RICHTER, G. Crystallization of Birefringent, Pseudocubic Horse Apoferritin with Cæsium Chloride. Nature 201, 600–602 (1964). https://doi.org/10.1038/201600b0
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DOI: https://doi.org/10.1038/201600b0
