Tryptophanase-tryptophan reaction. XI. Concentration of intracellular tryptophan in Escherichia coli

Happold, F.C.; Scott, T.A.

Hoppe-Seyler's Zeitschrift für Physiologische Chemie 331: 118-123


ISSN/ISBN: 0018-4888
PMID: 13952674
Accession: 026018536

Download citation:  

Article/Abstract emailed within 1 workday
Payments are secure & encrypted
Powered by Stripe
Powered by PayPal

Free intracellular L-tryptophan occurred in E. coli. The presence of phenylalanine or tyro-sine in the growth medium caused a depression of the intracellular tryptophan level. Excess Na ions in the growth medium caused an accumulation of intracellular tryptophan, while K ions had the opposite effect. The results are discussed in relation to the induced synthesis of tryptophanase.