Literature DB >> 18951880

Mutational analysis and a structural model of methyl-directed restriction enzyme Mrr.

Jerzy Orlowski1, Mehari Tesfazgi Mebrhatu, Chris W Michiels, Janusz M Bujnicki, Abram Aertsen.   

Abstract

The Mrr protein of Escherichia coli K12 is a cryptic Type IV restriction endonuclease whose activity appears to be triggered by high pressure stress. In this report we used high pressure to isolate and analyze several Mrr mutants, and generated a new structural model of the Mrr protein. The activity of a number of spontaneous and strategically constructed Mrr mutants is discussed in the light of this model, providing a first insight into the structure-function relationships of the Mrr enzyme.

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Year:  2008        PMID: 18951880     DOI: 10.1016/j.bbrc.2008.10.064

Source DB:  PubMed          Journal:  Biochem Biophys Res Commun        ISSN: 0006-291X            Impact factor:   3.575


  7 in total

1.  Cellular filamentation after sublethal high-pressure shock in Escherichia coli K12 is Mrr dependent.

Authors:  Anirban Ghosh; Abram Aertsen
Journal:  Curr Microbiol       Date:  2013-09-04       Impact factor: 2.188

2.  High pressure activation of the Mrr restriction endonuclease in Escherichia coli involves tetramer dissociation.

Authors:  Anaïs C Bourges; Oscar E Torres Montaguth; Anirban Ghosh; Wubishet M Tadesse; Nathalie Declerck; Abram Aertsen; Catherine A Royer
Journal:  Nucleic Acids Res       Date:  2017-05-19       Impact factor: 16.971

3.  Crystal structure and mechanism of action of the N6-methyladenine-dependent type IIM restriction endonuclease R.DpnI.

Authors:  Wojciech Siwek; Honorata Czapinska; Matthias Bochtler; Janusz M Bujnicki; Krzysztof Skowronek
Journal:  Nucleic Acids Res       Date:  2012-05-18       Impact factor: 16.971

4.  Evidence for an evolutionary antagonism between Mrr and Type III modification systems.

Authors:  Mehari Tesfazgi Mebrhatu; Ewa Wywial; Anirban Ghosh; Chris W Michiels; Ariel B Lindner; François Taddei; Janusz M Bujnicki; Laurence Van Melderen; Abram Aertsen
Journal:  Nucleic Acids Res       Date:  2011-04-19       Impact factor: 16.971

Review 5.  The other face of restriction: modification-dependent enzymes.

Authors:  Wil A M Loenen; Elisabeth A Raleigh
Journal:  Nucleic Acids Res       Date:  2013-08-29       Impact factor: 16.971

6.  An Mrr-family nuclease motif in the single polypeptide restriction-modification enzyme LlaGI.

Authors:  Rachel M Smith; Jytte Josephsen; Mark D Szczelkun
Journal:  Nucleic Acids Res       Date:  2009-11       Impact factor: 16.971

7.  Characterization of BisI Homologs.

Authors:  Shuang-Yong Xu; Elena V Zemlyanskaya; Danila A Gonchar; Zhiyi Sun; Peter Weigele; Alexey Fomenkov; Sergey Kh Degtyarev; Richard J Roberts
Journal:  Front Microbiol       Date:  2021-07-01       Impact factor: 5.640

  7 in total

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