Inhibition of Restriction Enzymes EcoRI, BamHI and HindIII by Phenethylphenylphthalimides Derived from Thalidomide
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Site-specific inhibition of EcoRI restriction/modification enzymes by a DNA triple helix
The ability of oligopyrimidines to inhibit, through triple helix formation, the specific protein-DNA interactions of the EcoRI restriction and modification enzymes (EcoRI and MEcoRI) with their recognition sequence (GAATTC) was studied. The oligonucleotides (CTT)4 and (CTT)8 formed triplexes in plasmids at (GAA)n repeats containing EcoRI sites. Cleavage and methylation of EcoRI sites within the...
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Certain type II restriction modification gene systems can kill host cells when these gene systems are eliminated from the host cells. Such ability to cause postsegregational killing of host cells is the feature of bacterial addiction modules, each of which consists of toxin and antitoxin genes. With these addiction modules, the differential stability of toxin and antitoxin molecules in cells pl...
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We have used cloned EcoRI fragments of the human CMV (HCMV) genome, strain AD169, to prepare restriction endonuclease maps of the DNA. Individual 32P-labeled cloned fragments were hybridized to Southern blots of HCMV DNA cleaved to completion with the restriction endonucleases BglII and HindIII and cleaved partially with EcoRI. By determining which EcoRI fragments hybridized to the same band on...
متن کاملHeterogeneity in sensitivity to cleavage by the restriction endonucleases ECORI and HindIII of circular kinetoplast DNA molecules of Crithidia acanthocephali
Kinetoplast DNA (kDNA) of the protozoan Crithidia acanthocephali consists mainly of an association of approximately 27,000 covalently closed, 0.8-micron (1.58 X 10(6) daltons) circular molecules apparently held together in a particular structural configuration by topological interlocking. The sensitivities of circular kDNA molecules to the restriction endonucleases EcoRI and HindIII have been s...
متن کاملA test of EcoRI and HindIII restriction fragment length polymorphisms in assessing susceptibility for scrapie in US Suffolk sheep
Ž . We investigated the distribution of EcoRI restriction fragment length polymorphism RFLP and tested EcoRI and HindIII RFLPs to ascertain the occurrence of scrapie in Suffolk sheep. Genomic DNA samples were collected from 527 Ž . animals and typed for EcoRI RFLP by Southern blot analysis using the PrP gene clone probe pNPU42 . The average e1 frequency in Suffolk sheep was 64.4% and ranged fro...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 2011
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.59.880