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Document Type

Research

Abstract

We have previously reported work on the influence of optical isomerism on the utilization of essential amino acids for growth. As an extension of this program we have devised a method for the resolution of di-lysine and have fed the d and the l modifications to rats as supplements to diets deficient in lysine, but otherwise complete. The unnatural l-lysine proved to be unable to stimulate growth. In this respect it is like the unnatural modification (d) of cystine, but differs from the unnatural isomers of tryptophane (d) and histidine (d).

Publication Date

1936

Journal Title

Proceedings of the Iowa Academy of Science

Volume

43

Issue

1

First Page

201

Last Page

201

Copyright

© Copyright 1936 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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