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The Journal of Experimental Medicine logoLink to The Journal of Experimental Medicine
. 1947 May 31;85(6):771–784. doi: 10.1084/jem.85.6.771

CHEMICAL STUDIES ON HOST-VIRUS INTERACTIONS

III. TRYPTOPHANE REQUIREMENTS IN THE STAGES OF VIRUS MULTIPLICATION IN THE ESCHERICHIA COLI-T2 BACTERIOPHAGE SYSTEM

Seymour S Cohen 1, Catherine B Fowler 1
PMCID: PMC2135687  PMID: 19871649

Abstract

The inhibition of virus multiplication by 5-methyl tryptophane can be specifically reversed by tryptophane. The conditions of reversal indicate that 5MT specifically interferes with tryptophane utilization. The tryptophane requirements of virus multiplication appear to exist throughout the latent period and determine the time of lysis and amount of virus liberated. A latent period may be interrupted for 15 minutes or more and be resumed on addition of tryptophane. Extended inhibition with 5MT results in a somewhat variable "killing" effect, the extent of which determines aspects of the reversal of the inhibition by tryptophane. The implications of these phenomena have been discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Cohen S. S., Anderson T. F. CHEMICAL STUDIES ON HOST-VIRUS INTERACTIONS : I. THE EFFECT OF BACTERIOPHAGE ADSORPTION ON THE MULTIPLICATION OF ITS HOST, ESCHERICHIA COLI B WITH AN APPENDIX GIVING SOME DATA ON THE COMPOSITION OF THE BACTERIOPHAGE, T2. J Exp Med. 1946 Oct 31;84(5):511–523. doi: 10.1084/jem.84.5.511. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Cohen S. S., Anderson T. F. CHEMICAL STUDIES ON HOST-VIRUS INTERACTIONS : II. THE CHEMICAL SIMULATION OF THE INTERFERENCE PHENOMENON BY 5-METHYL TRYPTOPHANE. J Exp Med. 1946 Oct 31;84(5):525–533. doi: 10.1084/jem.84.5.525. [DOI] [PMC free article] [PubMed] [Google Scholar]

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