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An Acid-induced Transformation of α-Conarachin

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Abstract

THOUGH for most proteins there is a characteristic pH. range of stability to irreversible changes, seed proteins in general are particularly sensitive to mild conditions of acidity. Perhaps the classical example is the transformation edestin undergoes at a pH. of approximately 5, the so-called edestin-edestan transformation1. Conarachin was reported to undergo irreversible changes when exposed to pH values below 4 (ref. 2). This communication reports the effect of mild acidity on α-conarachin which is separated from the conarachin fraction of peanut proteins by chromatography on DEAE cellulose3. It is part of an investigation of the effect of acid conditions as a means of elucidating some of the structural aspects of seed proteins.

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Authors and Affiliations

  1. Seed Protein Pioneering Research Laboratory, Southern Utilization Research and Development Division, Agricultural Research Service, U.S. Department of Agriculture, New Orleans, Louisiana

    W. J. EVANS, W. B. CARNEY & N. J. NEUCERE

Authors
  1. W. J. EVANS
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  2. W. B. CARNEY
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  3. N. J. NEUCERE
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EVANS, W., CARNEY, W. & NEUCERE, N. An Acid-induced Transformation of α-Conarachin. Nature 198, 1303–1304 (1963). https://doi.org/10.1038/1981303a0

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