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dc.contributor.authorPortakal, Oytun
dc.contributor.authorDoğan, Pakize
dc.date.accessioned2019-12-12T06:27:42Z
dc.date.available2019-12-12T06:27:42Z
dc.date.issued2008
dc.identifier.issn1471-2091
dc.identifier.urihttps://doi.org/10.1186/1471-2091-9-27
dc.identifier.urihttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2586629/
dc.identifier.urihttp://hdl.handle.net/11655/16482
dc.description.abstractBackground recD, located between recB and argA, encodes the smallest polypeptide (60 kDa) of the heterotrimeric enzyme RecBCD in Escherichia coli. RecD is a 5'-3' helicase and is required for the nuclease activity of RecBCD and for tight binding to dsDNA ends. Here, we have tested the hypothesis that RecD regulates the structure and activities of RecBCD, including RecA loading. Results To characterize its regulatory functions, recD was genetically fused to recB through deletion and substitution mutations. The recB-recD fusion led to a decreased amount of the heterotrimer. Both fusion mutants proved to be recombination proficient, viable and resistant to DNA damaging agents, and to have DNA unwinding, ATP-dependent dsDNA exonuclease and Chi genetic activities. Conclusion Our findings suggest that the recB-recD fusion may form a RecBD fusion protein and therefore affect RecD assembly, but this does not change the three-dimensional structure of the heterotrimer.
dc.language.isoen
dc.relation.isversionof10.1186/1471-2091-9-27
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleConstruction Of Recb-Recd Genetic Fusion And Functional Analysis Of Recbdc Fusion Enzyme In Escherichia Coli
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.relation.journalBMC Biochemistry
dc.contributor.departmentTıbbi Biyokimya
dc.identifier.volume9
dc.identifier.startpage27
dc.description.indexPubMed
dc.description.indexScopus


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