The biosynthesis of l-cystine and l-methionine labelled with radioactive sulphur (35S)
- 1 October 1952
- journal article
- research article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 52 (2) , 314-317
- https://doi.org/10.1042/bj0520314
Abstract
A simple biosynthetic method is described for preparing L-cystine and L-methionine labelled with S35. Baker''s yeast was grown in a synthetic medium containing labelled sulfate ions, and the amino acids were isolated from the yeast proteins. The amino acids isolated had high specific activities. No impurities, either inactive or radioactive, were detected in the isolated products.Keywords
This publication has 16 references indexed in Scilit:
- THE BIOSYNTHESIS OF L-CYSTINE AND L-METHIONINE LABELLED WITH S-351952
- URINARY EXCRETION OF INGESTED L-METHIONINES AND DL-METHIONINES MEASURED MICROBIOLOGICALLY1951
- CONVERSION OF CYSTATHIONINE LABELED WITH S35 TO CYSTINE IN VIVOJournal of Biological Chemistry, 1950
- Detection of Radioactive Impurities by the Constant Solubility TestScience, 1949
- FACTORS PRODUCING HIGH YEAST YIELDS IN SYNTHETIC MEDIAJournal of Bacteriology, 1949
- A study of the behaviour of some sixty amino-acids and other ninhydrin-reacting substances on phenol-`collidine' filter-paper chromatograms, with notes as to the occurrence of some of them in biological fluids1948
- The dicarboxylic and basic amino-acids of edestin, egg albumin and β-lactoglobulinBiochemical Journal, 1943
- Critique of the Foreman method for the estimation of the dicarboxylic acids in protein hydrolysatesBiochemical Journal, 1943
- The sulphur distribution of proteinsBiochemical Journal, 1937
- SULPHUR METABOLISM OF YEASTPlant Physiology, 1926