Allele-specific gene expression is widespread across the genome and biological processes.

Allelic specific gene expression (ASGE) appears to be an important factor in human phenotypic variability and as a consequence, for the development of complex traits and diseases. In order to study ASGE across the human genome, we have performed a study in which genotyping was coupled with an analys...

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Main Authors: Ricardo Palacios, Elodie Gazave, Joaquín Goñi, Gabriel Piedrafita, Olga Fernando, Arcadi Navarro, Pablo Villoslada
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2009-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC2613524?pdf=render
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author Ricardo Palacios
Elodie Gazave
Joaquín Goñi
Gabriel Piedrafita
Olga Fernando
Arcadi Navarro
Pablo Villoslada
author_facet Ricardo Palacios
Elodie Gazave
Joaquín Goñi
Gabriel Piedrafita
Olga Fernando
Arcadi Navarro
Pablo Villoslada
author_sort Ricardo Palacios
collection DOAJ
description Allelic specific gene expression (ASGE) appears to be an important factor in human phenotypic variability and as a consequence, for the development of complex traits and diseases. In order to study ASGE across the human genome, we have performed a study in which genotyping was coupled with an analysis of ASGE by screening 11,500 SNPs using the Mapping 10 K Array to identify differential allelic expression. We found that from the 5,133 SNPs that were suitable for analysis (heterozygous in our sample and expressed in peripheral blood mononuclear cells), 2,934 (57%) SNPs had differential allelic expression. Such SNPs were equally distributed along human chromosomes and biological processes. We validated the presence or absence of ASGE in 18 out 20 SNPs (90%) randomly selected by real time PCR in 48 human subjects. In addition, we observed that SNPs close to -but not included in- segmental duplications had increased levels of ASGE. Finally, we found that transcripts of unknown function or non-coding RNAs, also display ASGE: from a total of 2,308 intronic SNPs, 1510 (65%) SNPs underwent differential allelic expression. In summary, ASGE is a widespread mechanism in the human genome whose regulation seems to be far more complex than expected.
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spelling doaj.art-47f08961a09c49feba16ca394e9948762022-12-22T03:54:12ZengPublic Library of Science (PLoS)PLoS ONE1932-62032009-01-0141e415010.1371/journal.pone.0004150Allele-specific gene expression is widespread across the genome and biological processes.Ricardo PalaciosElodie GazaveJoaquín GoñiGabriel PiedrafitaOlga FernandoArcadi NavarroPablo VillosladaAllelic specific gene expression (ASGE) appears to be an important factor in human phenotypic variability and as a consequence, for the development of complex traits and diseases. In order to study ASGE across the human genome, we have performed a study in which genotyping was coupled with an analysis of ASGE by screening 11,500 SNPs using the Mapping 10 K Array to identify differential allelic expression. We found that from the 5,133 SNPs that were suitable for analysis (heterozygous in our sample and expressed in peripheral blood mononuclear cells), 2,934 (57%) SNPs had differential allelic expression. Such SNPs were equally distributed along human chromosomes and biological processes. We validated the presence or absence of ASGE in 18 out 20 SNPs (90%) randomly selected by real time PCR in 48 human subjects. In addition, we observed that SNPs close to -but not included in- segmental duplications had increased levels of ASGE. Finally, we found that transcripts of unknown function or non-coding RNAs, also display ASGE: from a total of 2,308 intronic SNPs, 1510 (65%) SNPs underwent differential allelic expression. In summary, ASGE is a widespread mechanism in the human genome whose regulation seems to be far more complex than expected.http://europepmc.org/articles/PMC2613524?pdf=render
spellingShingle Ricardo Palacios
Elodie Gazave
Joaquín Goñi
Gabriel Piedrafita
Olga Fernando
Arcadi Navarro
Pablo Villoslada
Allele-specific gene expression is widespread across the genome and biological processes.
PLoS ONE
title Allele-specific gene expression is widespread across the genome and biological processes.
title_full Allele-specific gene expression is widespread across the genome and biological processes.
title_fullStr Allele-specific gene expression is widespread across the genome and biological processes.
title_full_unstemmed Allele-specific gene expression is widespread across the genome and biological processes.
title_short Allele-specific gene expression is widespread across the genome and biological processes.
title_sort allele specific gene expression is widespread across the genome and biological processes
url http://europepmc.org/articles/PMC2613524?pdf=render
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