Crystal structures of B-DNA with incorporated 2′-deoxy-2′-fluoro-arabino-furanosyl thymines: implications of conformational preorganization for duplex stability was written by Berger, Imre; Tereshko, Valentina; Ikeda, Hisafumi; Marquez, Victor E.; Egli, Martin. And the article was included in Nucleic Acids Research on May 15,1998.Quality Control of 1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione The following contents are mentioned in the article:
The fundamental conformational states of right-handed double helical DNA, the A- and B-forms, are associated with distinct puckers of the sugar moieties. The furanose conformation itself is affected by the steric and electronic nature of the ring substituents. For example, a strongly electroneg. substituent at the C2′ position, such as in the 2′-deoxy-2′-fluororibofuranosyl analog, will drive the conformational equilibrium toward the C3′-endo type (north). Conversely, the 2′-deoxy-2′-fluoroarabinofuranosyl modification with opposite stereochem. at C2′ appears to have a preference for a C2′-endo type pucker (south). Incorporation of 2′-fluoroarabinofuranosyl thymines was previously shown to enhance the thermodn. stability of B-DNA duplexes. We have determined the crystal structures of the B-DNA dodecamer duplexes [d(CGCGAASSCGCG)]2 and [d(CGCGAASTCGCG)]2 with incorporated 2′-deoxy-2′-fluoroarabinofuranosyl thymines S (south) at 1.55 Å resolution In the crystal structures, all S residues adopt an O4′-endo conformation (east), well compatible with an overall B-form duplex geometry. In addition to the increased rigidity of S nucleosides, a clathrate-like ordered water structure around the 2′-fluorines may account for the observed larger thermodn. stability of DNA duplexes containing 2′-deoxy-2′-fluoroarabino thymidines. This study involved multiple reactions and reactants, such as 1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (cas: 69256-17-3Quality Control of 1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione).
1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (cas: 69256-17-3) belongs to pyrimidine derivatives. The pyrimidine nitrogenous bases are derived from the organic compound pyrimidine through the addition of various functional groups. As nucleotides in DNA and RNA, pyrimidine nucleotide derivatives have a wide range of biological applications. For example, pyrimidine derivatives are useful in DNA repair studies involving cancer and epigenetics.Quality Control of 1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione
69256-17-3;1-((2R,3S,4R,5R)-3-Fluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione;The future of 69256-17-3;New trend of C10H13FN2O5;function of 69256-17-3