The low molecular weight proteins in rapeseed (Brassica napus L.) have been isolated and characterized. They are very basic with an isoelectric point of around 11.0, and have molecular weights between 12 000 and 14 000. The individual proteins differ very little in amino acid composition and they consist of twochains, bound together with two disulfide bridges. The electrophoretic mobilities, amino acid compositions, end groups and exact molecular weights have been determined.
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