onr:"swepub:oai:research.chalmers.se:4374837c-c785-485a-a11d-8a841838f49e"
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03233naa a2200385 4500 | |
| 001 | oai:research.chalmers.se:4374837c-c785-485a-a11d-8a841838f49e | |
| 003 | SwePub | |
| 008 | 171227s2009 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://doi.org/10.1142/S17930480090009952 DOI |
| 024 | 7 | a https://research.chalmers.se/publication/2540992 URI |
| 040 | a (SwePub)cth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Starikov, Evgeni B.u Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT),Technische Universität Dresden4 aut |
| 245 | 1 0 | a Screw motion of DNA duplex during translocation through pore. I. Introduction of the coarse-grained model |
| 264 | 1 | c 2009 |
| 520 | a Based upon the structural properties of DNA duplexes and their counterion-water surrounding in solution, we have introduced here a screw model which may describe translocation of DNA duplexes through artificial nanopores of the proper diameter (where the DNA counterion-hydration shell can be intact) in a qualitatively correct way. This model represents DNA as a kind of "screw," whereas the counterion-hydration shell is a kind of "nut." Mathematical conditions for stable dynamics of the DNA screw model are investigated in detail. When an electrical potential is applied across an artificial membrane with a nanopore, the "screw" and "nut" begin to move with respect to each other, so that their mutual rotation is coupled with their mutual translation. As a result, there are peaks of electrical current connected with the mutual translocation of DNA and its counterion-hydration shell, if DNA is possessed of some non-regular base-pair sequence. The calculated peaks of current strongly resemble those observed in the pertinent experiments. An analogous model could in principle be applied to DNA translocation in natural DNA-protein complexes of biological interest, where the role of "nut" would be played by protein-tailored "channels." In such cases, the DNA screw model is capable of qualitatively explaining chemical-to-mechanical energy conversion in DNA-protein molecular machines via symmetry breaking in DNA-protein friction. | |
| 650 | 7 | a NATURVETENSKAPx Kemix Fysikalisk kemi0 (SwePub)104022 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Chemical Sciencesx Physical Chemistry0 (SwePub)104022 hsv//eng |
| 653 | a DNA | |
| 653 | a Screw-jack | |
| 653 | a Screw and nut | |
| 653 | a Screw | |
| 653 | a Nanopore translocation | |
| 700 | 1 | a Hennig, D.u Humboldt-Universität zu Berlin,Humboldt University of Berlin4 aut |
| 700 | 1 | a Yamada, H.4 aut |
| 700 | 1 | a Gutierrez, R.u Technische Universität Dresden4 aut |
| 700 | 1 | a Nordén, Bengt,d 1945u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)norden |
| 700 | 1 | a Cuniberti, G.u Technische Universität Dresden4 aut |
| 710 | 2 | a Karlsruher Institut für Technologie (KIT)b Technische Universität Dresden4 org |
| 773 | 0 | t Biophysical Reviews and Lettersg 4:3, s. 209-230q 4:3<209-230x 1793-0480 |
| 856 | 4 8 | u https://doi.org/10.1142/S1793048009000995 |
| 856 | 4 8 | u https://research.chalmers.se/publication/254099 |
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