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- W2100067555 endingPage "11793" @default.
- W2100067555 startingPage "11781" @default.
- W2100067555 abstract "We have prepared a series of undecadeoxynucleotides that contain changes in the functional group pattern present within the EcoRV recognition site - GATATC -. Oligonucleotides were synthesized on solid phase using normal and modified β-cyanoethylphosphoramidites and analyzed in steady state cleavage experiments with the EcoRV restriction endonuclease. The following groups appear to interact strongly with the enzyme, since their modification or substitution renders the oligonucleotides refractory to cleavage: the exocyclic NH 2 -groups of both A residues the N7 of the first A residue, the exocyclic NH 2 -group of the C residue and the CH 3 -groups of both T residues. The exocyclic NH-group of the G residue supports effective recognition, since its absence lowers the k cat of the cleavage reaction. The N7 of the second A residue and the C5 position of the C residue apparently are not recognized by EcoRV; their substitution by -CH- or modification with -Br or -CH 3 resp., does not considerably change the rate of cleavage. All oligonucleotides investigated compete with the unmodified substrate for binding to the enzyme. We conclude that EcoRV recognizes its substrate presumably through hydrogen bonds to the exocyclic NH 2 -group and the N7 of the first A residue, the exocyclic NH 2 -groups of the second A and the C residue, as well as through hydrophobic interactions with both T residues." @default.
- W2100067555 created "2016-06-24" @default.
- W2100067555 creator A5033630820 @default.
- W2100067555 creator A5060869360 @default.
- W2100067555 creator A5062346683 @default.
- W2100067555 creator A5088616795 @default.
- W2100067555 date "1988-01-01" @default.
- W2100067555 modified "2023-10-14" @default.
- W2100067555 title "Analysis of the recognition mechanism involved in the EcoRV catalyzed cleavage of DNA using modified oligodeoxynucleotides" @default.
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- W2100067555 doi "https://doi.org/10.1093/nar/16.24.11781" @default.
- W2100067555 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/339110" @default.
- W2100067555 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/3062581" @default.
- W2100067555 hasPublicationYear "1988" @default.
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