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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mazur, Alexey K. |
| Description | Country affiliation: France Author Affiliation: Mazur AK ( UPR9080 CNRS, Université Paris Diderot, Sorbonne Paris Cité, Institut de Biologie Physico-Chimique, 13 rue Pierre et Marie Curie, Paris 75005, France.) |
| Abstract | Molecular recognition between two double stranded (ds) DNA with homologous sequences may not seem compatible with the B-DNA structure because the sequence information is hidden when it is used for joining the two strands. Nevertheless, it has to be invoked to account for various biological data. Using quantum chemistry, molecular mechanics, and hints from recent genetics experiments, I show here that direct recognition between homologous dsDNA is possible through the formation of short quadruplexes due to direct complementary hydrogen bonding of major-groove surfaces in parallel alignment. The constraints imposed by the predicted structures of the recognition units determine the mechanism of complexation between long dsDNA. This mechanism and concomitant predictions agree with the available experimental data and shed light upon the sequence effects and the possible involvement of topoisomerase II in the recognition. |
| File Format | HTM / HTML |
| ISSN | 00319007 |
| e-ISSN | 10797114 |
| Journal | Physical Review Letters |
| Issue Number | 15 |
| Volume Number | 116 |
| Language | English |
| Publisher | American Physical Society |
| Publisher Date | 2016-04-15 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
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