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Articles 1 - 3 of 3
Full-Text Articles in Entire DC Network
Histone H2a And H2b Are Monoubiquitinated At Aid-Targeted Loci, Glen M. Borchert, Nathaniel W. Holton, Kevin A. Edwards, Laura A. Vogel, Erik D. Larson
Histone H2a And H2b Are Monoubiquitinated At Aid-Targeted Loci, Glen M. Borchert, Nathaniel W. Holton, Kevin A. Edwards, Laura A. Vogel, Erik D. Larson
Faculty Publications – Biological Sciences
Background: Somatic hypermutation introduces base substitutions into the rearranged and expressed immunoglobulin (Ig) variable regions to promote immunity. This pathway requires and is initiated by the Activation Induced Deaminase (AID) protein, which deaminates cytidine to produce uracils and UG mismatches at the Ig genes. Subsequent processing of uracil by mismatch repair and base excision repair factors contributes to mutagenesis. While selective for certain genomic targets, the chromatin modifications which distinguish hypermutating from non-hypermutating loci are not defined. Methodology/Principal Findings: Here, we show that AID-targeted loci in mammalian B cells contain ubiquitinated chromatin. Chromatin immunoprecipitation (ChIP) analysis of a constitutively hypermutating …
The Scale Of Population Structure In Arabidopsis Thaliana, Alexander Platt, Matthew Horton, Yu S. Huang, Yan Li, Alison E. Anastasio, Ni Wayan Mulyati, Jon Agren, Oliver Bossdorf, Diane Byers, Kathleen Donohue, Megan Dunning, Eric B. Holub, Andrew Hudson, Valerie Le Corre, Olivier Loudet, Fabrice Roux, Norman Warthmann, Detlef Weigel, Luz Rivero, Randy Scholl, Magnus Nordborg, Joy Bergelson, Justin O. Borevitz
The Scale Of Population Structure In Arabidopsis Thaliana, Alexander Platt, Matthew Horton, Yu S. Huang, Yan Li, Alison E. Anastasio, Ni Wayan Mulyati, Jon Agren, Oliver Bossdorf, Diane Byers, Kathleen Donohue, Megan Dunning, Eric B. Holub, Andrew Hudson, Valerie Le Corre, Olivier Loudet, Fabrice Roux, Norman Warthmann, Detlef Weigel, Luz Rivero, Randy Scholl, Magnus Nordborg, Joy Bergelson, Justin O. Borevitz
Faculty Publications – Biological Sciences
The population structure of an organism reflects its evolutionary history and influences its evolutionary trajectory. It constrains the combination of genetic diversity and reveals patterns of past gene flow. Understanding it is a prerequisite for detecting genomic regions under selection, predicting the effect of population disturbances, or modeling gene flow. This paper examines the detailed global population structure of Arabidopsis thaliana. Using a set of 5,707 plants collected from around the globe and genotyped at 149 SNPs, we show that while A. thaliana as a species self-fertilizes 97% of the time, there is considerable variation among local groups. This level …
Environmental Correlates Of Abundances Of Mosquito Species And Stages In Discarded Vehicle Tires, Donald A. Yee, Jamie M. Kneitel, Steven A. Juliano
Environmental Correlates Of Abundances Of Mosquito Species And Stages In Discarded Vehicle Tires, Donald A. Yee, Jamie M. Kneitel, Steven A. Juliano
Faculty Publications – Biological Sciences
Discarded vehicle tires are a common habitat for container mosquito larvae, although the environmental factors that may control their presence or abundance within a tire are largely unknown. We sample discarded vehicle tires in six sites located within four counties of central Illinois during the spring and summer of 2006 to determine associations between a suite of environmental factors and community composition of container mosquitoes. Our goal was to find patterns of association between environmental factors and abundances of early and late instars. We hypothesized that environmental factors correlated with early instars would be indicative of oviposition cues, whereas environmental …