Binding studies of eukaryotic initiation factor eIF4E with novel mRNA dinucleotide cap analogues |
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Authors: | Zuberek Joanna Jemielity Jacek Stepinski Janusz Lewdorowicz Magdalena Niedzwiecka Anna Haber Dorota Stolarski Ryszard Rhoads Robert E Darzynkiewicz Edward |
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Institution: | Department of Biophysics, Institute of Experimental Physics, Warsaw University, Warszawa, Poland. |
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Abstract: | Studies on the interaction of the murine translation initiation factor 4E with two new-synthesized cap-analogues, modified at C2' of 7-methylguanosine, have been performed by means of the fluorescence titration method. No difference in the binding affinity for eIF4E was observed compared with the "anti reversed" cap analogues, possessing the analogous modifications at C3'. Potential significance of the novel caps as research tools for examination of the nuclear cap binding complex CBC80/20 has been discussed. |
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