Crossref journal-article
American Society for Microbiology
Journal of Bacteriology (235)
Abstract

The recently discovered nucC locus of Serratia marcescens encodes the cryptic prophage genes nucE, nucD, and nucC. NucC is required for expression of the S. marcescens nuclease and functions as a transcriptional activator of the nuclease gene, nucA. NucE and NucD are dispensable for nuclease expression but were proposed to allow for secretion of the nuclease by Escherichia coli. Here, we show (i) that the NucE protein is membrane bound, (ii) that it can complement the lambda S holin, (iii) that it can be triggered by potassium cyanide, (iv) that it is detrimental to cell viability, and (v) that the concomitant expression of nucE and nucD results in cell lysis. Apparently NucE and NucD function as a holin and an endolysin, respectively. This suggests that their roles in nuclease secretion by E. coli are indirect, possibly through directed cell lysis.

Bibliography

Berkmen, M., Benedik, M. J., & Bläsi, U. (1997). The Serratia marcescens NucE protein functions as a holin in Escherichia coli. Journal of Bacteriology, 179(20), 6522–6524.

Authors 3
  1. M Berkmen (first)
  2. M J Benedik (additional)
  3. U Bläsi (additional)
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Dates
Type When
Created 8 years, 9 months ago (Nov. 10, 2016, 10:42 a.m.)
Deposited 4 years ago (July 29, 2021, 2:06 p.m.)
Indexed 1 year, 9 months ago (Oct. 28, 2023, 6:12 p.m.)
Issued 27 years, 10 months ago (Oct. 1, 1997)
Published 27 years, 10 months ago (Oct. 1, 1997)
Published Print 27 years, 10 months ago (Oct. 1, 1997)
Funders 0

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@article{Berkmen_1997, title={The Serratia marcescens NucE protein functions as a holin in Escherichia coli}, volume={179}, ISSN={1098-5530}, url={http://dx.doi.org/10.1128/jb.179.20.6522-6524.1997}, DOI={10.1128/jb.179.20.6522-6524.1997}, number={20}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Berkmen, M and Benedik, M J and Bläsi, U}, year={1997}, month=oct, pages={6522–6524} }