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Abstract
The decarboxylation of (2S)-lysine by lysine decarboxylase (E.C. 4.1.1.18) from B. cadaveris is shown to be stereospecific and to proceed with retention of configuration by incubation of [2-3H,U-14C]lysine in unlabelled water and [U-14C]lysine in tritiated water to give labelled samples of [1-3H,U-14C]cadaverine (1,5-diaminopentane) which are chiral by isotopic substitution. The configuration of each diamine is assayed by deamination with the diamine oxidase from pea seedlings (E.C. 1.4.3.6) which stereospecifically removes the hydrogen from the Si-position of the tritiated methylene group.
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Schedule a callMore From: Journal of the Chemical Society, Perkin Transactions 1
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