Formation of the covalent complex between T4 Endo V and a CPD-containing oligonucleotide duplex fluorinated at the 2′ position

<p><b>Copyright information:</b></p><p>Taken from "Synthesis and characterization of oligonucleotides containing 2′-fluorinated thymidine glycol as inhibitors of the endonuclease III reaction"</p><p>Nucleic Acids Research 2006;34(5):1540-1551.</p><p>Published online 17 Mar 2006</p><p>PMCID:PMC1409675.</p><p>© The Author 2006. Published by Oxford University Press. All rights reserved</p> The 5′ and 3′ ends of the CPD-containing strand were P-labeled. After hybridization with the complementary strand, the duplexes were incubated with T4 Endo V at 30°C for 30 min, and the mixtures were subjected to 15% SDS–PAGE

H-NMR spectra ( and ) and NOE difference spectra ( and ) of compounds and

<p><b>Copyright information:</b></p><p>Taken from "Synthesis and characterization of oligonucleotides containing 2′-fluorinated thymidine glycol as inhibitors of the endonuclease III reaction"</p><p>Nucleic Acids Research 2006;34(5):1540-1551.</p><p>Published online 17 Mar 2006</p><p>PMCID:PMC1409675.</p><p>© The Author 2006. Published by Oxford University Press. All rights reserved</p> ( and ) the major isomer; ( and ) the minor isomer. The H6 resonance was saturated in the NOE experiments

Competition of the 13 bp substrate duplexes and the Tg-containing duplexes in the Endo III reaction

<p><b>Copyright information:</b></p><p>Taken from "Synthesis and characterization of oligonucleotides containing 2′-fluorinated thymidine glycol as inhibitors of the endonuclease III reaction"</p><p>Nucleic Acids Research 2006;34(5):1540-1551.</p><p>Published online 17 Mar 2006</p><p>PMCID:PMC1409675.</p><p>© The Author 2006. Published by Oxford University Press. All rights reserved</p> The P-labeled substrates without fluorine were incubated with Endo III in the presence of the competitors containing Tg. The amounts of the nicked products (standardized to those without the competitors) were plotted against the concentrations of the competitor. Open circles, P-5-Tg + 5-Tg; filled circles, P-5-Tg + 5-Tg; open triangles, P-5-Tg + 5-Tg; filled triangles, P-5-Tg 5-Tg

Analysis of the 5-Tg () and 5-Tg () 13mers by MALDI-TOF mass spectrometry

<p><b>Copyright information:</b></p><p>Taken from "Synthesis and characterization of oligonucleotides containing 2′-fluorinated thymidine glycol as inhibitors of the endonuclease III reaction"</p><p>Nucleic Acids Research 2006;34(5):1540-1551.</p><p>Published online 17 Mar 2006</p><p>PMCID:PMC1409675.</p><p>© The Author 2006. Published by Oxford University Press. All rights reserved</p> The calculated molecular weight is 3977.69

PAGE analysis of BER activities of AlkA, hMPG and HeLa CFE1s for Oxa and Oxa–Sp

<p><b>Copyright information:</b></p><p>Taken from "Repair activity of base and nucleotide excision repair enzymes for guanine lesions induced by nitrosative stress"</p><p>Nucleic Acids Research 2005;33(7):2181-2191.</p><p>Published online 14 Apr 2005</p><p>PMCID:PMC1079971.</p><p>© The Author 2005. Published by Oxford University Press. All rights reserved</p> () 25OXA, 25OXA–SP and 34MG (all 2 nM, and ) were incubated with the indicated amounts of AlkA and hMPG at 37°C for 30 min. After incubation, the reaction mixture was treated with 0.1 M NaOH to cleave AP sites, and products were separated by 16% denaturing PAGE. The nicked products due to β-elimination (upper bands) and β,δ-elimination (lower bands) are indicated by open brackets. () 25OXA and 25HX (both 2 nM, and ) were incubated in hMPG buffer with the indicated amounts of HeLa CFE1s at 37°C for 1 h. Products were analyzed as described above