National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
SILVER NANOPARTICLES AND THEIR BACTERICIDAL EFFECT
Piksová, K. ; Weiserová, Marie ; Jedličková, A. ; Fojtík, A.
Rapid development of bio-nanotechnology lead to the new way in the combating of bacteria and to searching specific properties of nanomaterials The study of bactericidal nanomaterials is particularly timely considering the recent increase of new resistant strains of bacteria to the most potent antibiotics The present work studies the bactericidal effect of silver nanoparticles in the range of 10-30 nm on Gram-negative bacteria and Gram-positive bacteria
Charakterizace restrikčně-modifikačního systému komensálního kmene
Weiserová, Marie ; Ryu, J.
We have characterised a putative restriction-modification system EcoA0ORF42P in commensal Escherichia coli strain A0 34/86 (O83: K24: H31). This system is a functional member of the Type IB family, whose specificity differs from those of known Type IB enzymes, as proved by immunological cross-reactivity and complementation assay. Using a plasmid transformation method and RM search computer program, we have identified the DNA recognition sequence of EcoA0ORF42P as GGA(8N)ATGC
Kontinuální analýzy DNA translokace enzymem Typu I EcoR124I
Šišáková, Eva ; Seidel, R. ; Szczelkun, M. ; Weiserová, Marie
Using combination of bulk solution and single-molecule assays we have investigated the influence of several mutations in the PD-(D/E)-X-K catalytic motif of HsdR on the DNA translocation and ATPase properties of EcoR124I, the restriction-modification enzyme Type I. The gained results have given us the insight into the possible interdomain interactions between helicase and nuclease domains of the HsdR subunit and the effect of their interactions on DNA translocation

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