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Measurement of 8-hydroxy-2'-deoxyguanosine (8-OH-dGuo) in DNA by high-performance liquid chromatography/mass spectrometry (HPLC/MS) was studied. A methodology was developed for separation by LC of 8-OH-dGuo from intact and modified nucleosides in DNA
R. Sinibaldi, C D. O'Connell, H Rodriguez, C. Seidel
As the human genome project continues toward its goal of sequencing the entire human genome by the end of 2003, this is providing unique opportunities for studying genetic variation in humans and its relationship with disease risk and aging. Consequently
Agarase was used investigate the effect of increasing the number of polymer ends on the electrophoretic trapping of circular DNA in agarose gels. The electric field strength required to trap circular DNA was found to be the same in control and treated gels
C. Dherin, M. Dizdaroglu, H. Doerflinger, S. Boiteux, J. P. Radicella
In Drosophila, the S3 ribosomal protein has been shown to act as a DNA glycosylase/AP lyase capable of releasing 8-hydroxyguanine (8-OH-Gua) in damaged DNA. Here we describe a second Drosophila protein (dOggl) with 8-OH-Gua and abasic (AP) site DNA repair
H M. Berman, Talapady N. Bhat, P E. Bourne, Z. Feng, G L. Gilliland, H Weissig, J Westbrook
The determination of structures on a genomic scale in a high-throughput mode will have an impact on every aspect of the Protein Data Bank (PDB) - the single archive for all biomacromolecular structural data. Although estimates vary, the PDB could triple in
R M. Werner, Y. L. Jiang, R. G. Gordley, J. Jagadeesh, Jane E. Ladner, G Xiao, M Tordova, G L. Gilliland, J T. Stivers
The DNA repair enzyme uracil DNA glycosylase (UDG) pinches the phosphodiester backbone of damaged DNA using the hydroxyl side chains of a conserved trio of serine residues, resulting in flipping of the deoxyuridine from the DNA helix into the enzyme active
S. E. Henrickson, Martin Misakian, B Robertson, John J. Kasianowicz
To understand the mechanism by which individual DNA molecules partition into a nanometer-scale pore, we studied the concentration and voltage dependence of polynucleotide-induced current blockades of single a-hemolysin ionic channels. At fixed single
T. K. Hazra, T. Izumi, R Venkataraman, Y W. Kow, M. Dizdaroglu, Somenath Mitra
8-oxoguanine (G*), induced by reactive oxygen species, is mutagenic because it mispairs with A. The major G*-DNA glycosylase (OGG), namely, OGG1 in eukaryotes, or MutM in Escherichia coli, excises G* when paired in DNA with C, G and T, but not A
A B. Steel, R Levicky, T M. Herne, Michael J. Tarlov
This report investigates the effect of DNA length and the presence of an anchoring group on the assembly of pre-synthesized oligonucleotides at a gold surface. The work seeks to advance fundamental insight into issues that impact the structure and behavior
Free radicals such as OH, e aq- and H atoms react with DNA by addition to bases or abstraction of H atoms from the sugar moiety. Oxygen adds to base or sugar radicals of DNA resulting in formation of peroxyl radicals. DNA radicals further react to give
The field of human mitochondrial genetics has advanced way beyond where the Human Genome Project hopes to be by the year 2003, the projected year for completing the sequence of the entire human nuclear DNA genome. Not only has the mitochondrial DNA (mtDNA)
Margaret C. Kline, Janette W. Redman, David L. Duewer, D J. Reeder
The National Institute of Standards and Technology (NIST) has provided a number of educational interlaboratory exercises to the forensic community. The recent NIST Mixed Stain Study #2 consisted of three separate sets of materials. Set 1) three stains on