scholarly journals Flanking sequence specificity determines coding microsatellite heteroduplex and mutation rates with defective DNA mismatch repair (MMR)

Oncogene ◽  
2010 ◽  
Vol 29 (15) ◽  
pp. 2172-2180 ◽  
Author(s):  
H Chung ◽  
C G Lopez ◽  
D J Young ◽  
J F Lai ◽  
J Holmstrom ◽  
...  
Keyword(s):  
Mismatch Repair ◽  
Dna Mismatch Repair ◽  
Mutation Rates ◽  
Sequence Specificity ◽  
Flanking Sequence ◽  
Dna Mismatch

scholarly journals Both microsatellite length and sequence context determine frameshift mutation rates in defective DNA mismatch repair

2010 ◽  
Vol 19 (13) ◽  
pp. 2638-2647 ◽  
Author(s):  
Heekyung Chung ◽  
Claudia G. Lopez ◽  
Joy Holmstrom ◽  
Dennis J. Young ◽  
Jenny F. Lai ◽  
...  
Keyword(s):  
Mismatch Repair ◽  
Frameshift Mutation ◽  
Dna Mismatch Repair ◽  
Mutation Rates ◽  
Sequence Context ◽  
Dna Mismatch

scholarly journals Mutation Rates of TGFBR2 and ACVR2 Coding Microsatellites in Human Cells with Defective DNA Mismatch Repair

PLoS ONE ◽  
2008 ◽  
Vol 3 (10) ◽  
pp. e3463 ◽  
Author(s):  
Heekyung Chung ◽  
Dennis J. Young ◽  
Claudia G. Lopez ◽  
Thuy-Anh T. Le ◽  
Jeffrey K. Lee ◽  
...  
Keyword(s):  
Mismatch Repair ◽  
Dna Mismatch Repair ◽  
Human Cells ◽  
Mutation Rates ◽  
Dna Mismatch

scholarly journals Stability across the Whole Nuclear Genome in the Presence and Absence of DNA Mismatch Repair

Cells ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1224
Author(s):  
Scott Alexander Lujan ◽  
Thomas A. Kunkel
Keyword(s):  
Cell Division ◽  
Cell Line ◽  
Mismatch Repair ◽  
Dna Mismatch Repair ◽  
Nuclear Genome ◽  
Mutation Accumulation ◽  
Mutation Rates ◽  
Wild Type ◽  
Dna Mismatch ◽  
Chicken Cell

We describe the contribution of DNA mismatch repair (MMR) to the stability of the eukaryotic nuclear genome as determined by whole-genome sequencing. To date, wild-type nuclear genome mutation rates are known for over 40 eukaryotic species, while measurements in mismatch repair-defective organisms are fewer in number and are concentrated on Saccharomyces cerevisiae and human tumors. Well-studied organisms include Drosophila melanogaster and Mus musculus, while less genetically tractable species include great apes and long-lived trees. A variety of techniques have been developed to gather mutation rates, either per generation or per cell division. Generational rates are described through whole-organism mutation accumulation experiments and through offspring–parent sequencing, or they have been identified by descent. Rates per somatic cell division have been estimated from cell line mutation accumulation experiments, from systemic variant allele frequencies, and from widely spaced samples with known cell divisions per unit of tissue growth. The latter methods are also used to estimate generational mutation rates for large organisms that lack dedicated germlines, such as trees and hyphal fungi. Mechanistic studies involving genetic manipulation of MMR genes prior to mutation rate determination are thus far confined to yeast, Arabidopsis thaliana, Caenorhabditis elegans, and one chicken cell line. A great deal of work in wild-type organisms has begun to establish a sound baseline, but far more work is needed to uncover the variety of MMR across eukaryotes. Nonetheless, the few MMR studies reported to date indicate that MMR contributes 100-fold or more to genome stability, and they have uncovered insights that would have been impossible to obtain using reporter gene assays.

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