The Conversion of d-Tryptophan to l-Tryptophan in Cell Cultures of Tobacco 1
AUTOR(ES)
Miura, George A.
RESUMO
d-Tryptophan was converted to l-tryptophan in tissue cultures of tobacco, in whole cells treated with dimethylsulfoxide, and in cell-free extracts treated by Sephadex G-25 filtration. Evidence was obtained that tryptophanase, tryptophan pyrrolase, and transaminase activities were not involved. The data were best explained by the presence of a tryptophan racemase as the enzyme catalyzing the reaction. The possible role of d-tryptophan in the biosynthesis of indoleacetic acid is discussed.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=396712Documentos Relacionados
- Role of D-tryptophan oxidase in D-tryptophan utilization by Escherichia coli.
- Induction by l-Tryptophan and an Analogue, α-Methyl-dl-Tryptophan, of the Enzymes Catabolizing l-Tryptophan in Pseudomonas
- Pathological and immunological effects of ingesting L-tryptophan and 1,1'-ethylidenebis (L-tryptophan) in Lewis rats.
- Effect of D-tryptophan on hemolysin production in Vibrio parahaemolyticus.
- Microbiological Method for the Determination of l-Tryptophan
