Abstract
Decadeoxyribonucleotides containing uracil, 5-bromouracil, 5-cyanouracil and 5-ethyluracil in recognition sequences of restriction endonucleases Bgl II, Sau 3AI, Mbo I were synthesized. Decanucleotides containing 5-bromouracil in place of thymine had essentially the same susceptibility to all the restriction endonucleases. Uracil-containing decanucleotides were however very resistant to attack. Decanucleotides containing 5-cyanouracil in the recognition sequence were strongly resistant to hydrolysis by Sau 3AI, but were hydrolysed by Bgl II and Mbo I as well as the parent decanucleotide. Decanucleotides containing 5-ethyluracil were strongly resistant to hydrolysis by Sau 3AI, but were partially resistant to hydrolysis by Bgl II and Mbo I.
MeSH Terms
Bacterial Proteins
Bromouracil
Circular Dichroism
DNA Restriction Enzymes/metabolism
Deoxyribonucleases, Type II Site-Specific
Deoxyribonucleotides/chemical synthesis,metabolism
Structure-Activity Relationship
Substrate Specificity
Uracil/analogs & derivatives
Chemicals
Bacterial Proteins
Deoxyribonucleotides
5-ethyluracil
5-cyanouracil
Bromouracil
Uracil
DNA Restriction Enzymes
BglII endonuclease
Deoxyribonucleases, Type II Site-Specific
GATC-specific type II deoxyribonucleases
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Hayakawa T
Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.
Ono A
Ueda T
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