Publication date: Available online 1 April 2017
Source:Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms
Author(s): Agnes Mendonca, Oscar F. Sanchez, Wenjie Liu, Zhe Li, Chongli Yuan
The methyl-binding domain of MBD1 is a common methyl CpG binding motif and has been linked to transcriptional repression. Understanding the dynamics of MBD1 binding to nucleosomal DNA is crucial, but the molecular interactions between MBD1 and chromatin remain elusive. In this study, we found the binding of MBD1 to nucleosomes demonstrates sequence preferences depending on the position of the methyl groups on the nucleosome. Specifically, binding was favored at meCpG sites in the dyad proximal region and facing towards the histone octamers. At locations where the meCpG sites face away from the histone octamer, the binding affinity was significantly lower. Interestingly, the binding of ΔMBD1 at methylated CpG sites facing away from histone octamers induces conformational changes of nucleosomes, resulting in a more "open" conformation. The biological implication of DNA methylation is thus likely to be synergistically regulated via DNA sequences contents and their nucleosome-positioning patterns based on our in vitro findings.
http://ift.tt/2on3XUh
Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com
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! # Ola via Alexandros G.Sfakianakis on Inoreader
Η λίστα ιστολογίων μου
Σάββατο 1 Απριλίου 2017
CpG dinucleotide positioning patterns determine the binding affinity of methyl-binding domain to nucleosomes
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- Effect of alfacalcidol on the pulmonary function o...
- Mimicker of hereditary angioedema: Idiopathic syst...
- Dual training in allergy/immunology and rheumatology
- Broader concepts of quality of life measurement, e...
- Diagnostic accuracy of confocal microscopy imaging...
- The Effect of Body Weight on the Efficacy and Safe...
- The Icatibant Outcome Survey: experience of heredi...
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- Clinical and molecular findings in a Moroccan fami...
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- Realisation of voicing by French-speaking CI child...
- Validity of auditory perceptual assessment of velo...
- Relations between awareness of morphosyntactic str...
- Analogical reasoning in children with specific lan...
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- Wip1 inhibition leads to severe pro-inflammatory p...
- Real-time detection of organic contamination event...
- Characteristics and impacts of trace elements in a...
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