نتایج جستجو برای: one locus mismatch

تعداد نتایج: 2075455  

One of the causes of unemployment is lack of fit between individual skill and needs for skills in the community. The situation of mismatch between the demand and supply of labour, particularly in terms of skills is defined as structural unemployment. Therefore, in this study quantitatively explores the impact of skill mismatches one of the main parameters of structural unemployment on unemplo...

Journal: :Cancer research 1996
S Aebi B Kurdi-Haidar R Gordon B Cenni H Zheng D Fink R D Christen C R Boland M Koi R Fishel S B Howell

Selection of cells for resistance to cisplatin, a well-recognized mutagen, could result in mutations in genes involved in DNA mismatch repair and thereby to resistance to DNA-alkylating agents. Parental cells of the human ovarian adenocarcinoma cell line 2008 expressed hMLH1 when analyzed with immunoblot. One subline selected for resistance to cisplatin (2008/A) expressed no hMLH1, whereas anot...

Journal: :Genetics and molecular research : GMR 2014
M X Zhang H M Gao S Y Han Y Liu Y L Tian S H Sun D J Xiao C T Li Y S Wang

The aim of this study was to evaluate whether the Goldeneye 20A system (containing 19 short tandem repeats) can avert the shortage of duo parentage tests. Among routine cases typed by the Identifiler system, we identified 42 motherless cases, 2 fatherless cases, and 34 trio cases containing 1 locus mismatch and 4 motherless cases with 2 locus mismatches. One true trio case was rejected by fathe...

Journal: :Cancer research 2014
Shivendra Kishore Salvatore Piscuoglio Michal B Kovac Annette Gylling Friedel Wenzel Francesca Trapani Hans Joerg Altermatt Valentina Mele Giancarlo Marra Päivi Peltomäki Luigi Terracciano Mihaela Zavolan Karl Heinimann

The genome-wide accumulation of DNA replication errors known as microsatellite instability (MSI) is the hallmark lesion of DNA mismatch repair (MMR)-deficient cancers. Although testing for MSI is widely used to guide clinical management, the contribution of MSI at distinct genic loci to the phenotype remains largely unexplored. Here, we report that a mononucleotide (T/U)16 tract located in the ...

Journal: :Cancer research 1998
J I Risinger A Umar W E Glaab K R Tindall T A Kunkel J C Barrett

Results from the analysis of human tumor cell lines with mutations in DNA mismatch repair genes have contributed to the understanding of the functions of these gene products in DNA mismatch repair, microsatellite instability, cell cycle checkpoint control, transcription-coupled nucleotide excision repair, and resistance to cytotoxic agents. However, complementation of human DNA mismatch repair ...

2014
Matthias Drum Ramon Kranaster Christina Ewald Rainer Blasczyk Andreas Marx

The selectivity of DNA polymerases is crucial for many applications. For example, high discrimination between the extension of matched versus mismatched primer termini is desired for the detection of a single nucleotide variation at a particular locus within the genome. Here we describe the generation of thermostable mutants of the large fragment of Thermus aquaticus DNA polymerase (KlenTaq) wi...

2017
Yi Yin Margaret Dominska Eunice Yim Thomas D Petes

In yeast, DNA breaks are usually repaired by homologous recombination (HR). An early step for HR pathways is formation of a heteroduplex, in which a single-strand from the broken DNA molecule pairs with a strand derived from an intact DNA molecule. If the two strands of DNA are not identical, there will be mismatches within the heteroduplex DNA (hetDNA). In wild-type strains, these mismatches a...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
Lance D Langston Lorraine S Symington

To study the mechanism of gene targeting, we examined heteroduplex DNA (hDNA) formation during targeting of two separate chromosomal locations in Saccharomyces cerevisiae. We examined both replacement of the entire gene with a heterologous selectable marker and correction of a single base pair insertion mutation by gene targeting, and in all cases our results were consistent with separate stran...

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