Publications associées à Séquence Alu

A satellite DNA array barcodes chromosome 7 and regulates totipotency via ZFP819

Didier Trono, Gabriela Ecco, Helen Mary Rowe

Mammalian genomes are a battleground for genetic conflict between repetitive elements and KRAB-zinc finger proteins (KZFPs). We asked whether KZFPs can regulate cell fate by using ZFP819, which targets a satellite DNA array, ZP3AR. ZP3AR coats megabase reg ...

2022

Transposable elements contribute to the spatiotemporal microRNA landscape in human brain development

Didier Trono, Evaristo Jose Planet Letschert, Shaoline Sheppard, Christopher James Playfoot

Transposable elements (TEs) contribute to the evolution of gene regulatory networks and are dynamically expressed throughout human brain development and disease. One gene regulatory mechanism influenced by TEs is the miRNA system of post-transcriptional co ...

2022

Mild inborn errors of metabolism in commonly used inbred mouse strains

Johan Auwerx, Wei Zhang, Evan Graehl Williams

Inbred mouse strains are a cornerstone of translational research but paradoxically many strains carry mild inborn errors of metabolism. For example, alpha-aminoadipic acidemia and branched-chain ketoacid dehydrogenase deficiency are known in C57BL/6J mice. ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2019

Properties of LINE-1 proteins and repeat element expression in the context of amyotrophic lateral sclerosis

Didier Trono, Priscilla Turelli, Evaristo Jose Planet Letschert

BackgroundAmyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease involving loss of motor neurons and having no known cure and uncertain etiology. Several studies have drawn connections between altered retrotransposon expression and ALS. C ...

2018

DNA repair protein Rad18 restricts LINE-1 mobility

Priscilla Turelli

Long interspersed element-1 (LINE-1, L1) is a mobile genetic element comprising about 17% of the human genome. L1 utilizes an endonuclease to insert L1 cDNA into the target genomic DNA, which induces double-strand DNA breaks in the human genome and activat ...

Nature Research2018

A new promoter element associated with daily time keeping in Drosophila

Felix Naef, Eric Paquet

Circadian clocks are autonomous daily timekeeping mechanisms that allow organisms to adapt to environmental rhythms as well as temporally organize biological functions. Clock-controlled timekeeping involves extensive regulation of rhythmic gene expression. ...

Oxford University Press2017

In and out—contribution of natural transformation to the shuffling of large genomic regions

Melanie Blokesch

Naturally competent bacteria can pull free DNA from their surroundings. This incoming DNA can serve various purposes, ranging from acting as a source of nutrients or DNA stretches for repair to the acquisition of novel genetic information. The latter proce ...

Elsevier2017

Evolutionally dynamic control of LINE-1 elements in embryonic stem cells

Natali Pennese

Mobile elements are important evolutionary forces that challenge genomic integrity. Long interspersed element-1 (L1, also known as LINE-1) is the only autonomous transposon still active in the human genome. It displays an unusual pattern of evolution, with ...

EPFL2015

Transposable elements and their KRAB/KAP1 controllers broadly regulate transcription in adult human cells

Flavia Marzetta

KAP1 is a universal corepressor for the large family of KRAB-ZFP proteins that coordinates epigenetic silencing of endogenous retroelements (EREs) during early embryonic development. This process is essential not just to prevent replication of EREs, but al ...

EPFL2015

Reductive dechlorination of tetrachloroethene by a stepwise catalysis of different organohalide respiring bacteria and reductive dehalogenases

Christof Holliger, Julien Maillard, Katia Szynalski, Pierre Rossi, Emmanuelle Rohrbach

The enrichment culture SL2 dechlorinating tetrachloroethene (PCE) to ethene with strong trichloroethene (TCE) accumulation prior to cis-1,2-dichloroethene (cis-DCE) formation was analyzed for the presence of organohalide respiring bacteria and reductive de ...

Springer Netherlands2011

Analysis of HIV-1 Expression Level and Sense of Transcription by High-Throughput Sequencing of the Infected Cell

Jacques Rougemont, Amalio Telenti

Next-generation sequencing offers an unprecedented opportunity to jointly analyze cellular and viral transcriptional activity without prerequisite knowledge of the nature of the transcripts. SupT1 cells were infected with a vesicular stomatitis virus G env ...

American Society for Microbiology2011

Functional analysis and structural modeling of human APOBEC3G reveal the role of evolutionarily conserved elements in the inhibition of human immunodeficiency virus type 1 infection and Alu transposition

Didier Trono, Priscilla Turelli, Olivier Michielin, Bastien Mangeat

Retroelements are important evolutionary forces but can be deleterious if left uncontrolled. Members of the human APOBEC3 family of cytidine deaminases can inhibit a wide range of endogenous, as well as exogenous, retroelements. These enzymes are structura ...

American Society for Microbiology2009

Conserved elements within open reading frames of mammalian Hox genes

Denis Duboule

A recent study in BMC Evolutionary Biology shows that many of the open reading frames in mammalian Hox genes are more conserved than expected on the basis of their protein sequence. The presence of highly conserved DNA elements is thus not confined to the ...

2009

Atypical relaxation of structural constraints in Hox gene clusters of the green anole lizard

Denis Duboule

Hox genes control many aspects of embryonic development in metazoans. Previous analyses of this gene family revealed a surprising diversity in terms of gene number and organization between various animal species. In vertebrates, Hox genes are grouped into ...

2009

Characterization of APOBEC3G binding to 7SL RNA

Didier Trono, Bastien Mangeat

Human APOBEC3 proteins are editing enzymes that can interfere with the replication of exogenous retroviruses such as human immunodeficiency virus (HIV), hepadnaviruses such as hepatitis B virus (HBV), and with the retrotransposition of endogenous retroelem ...

2008

Mammalian TOR as a central modulator of the transcriptional response of keratinocyte stem cells to small temperature variations

Fahd Azzabi Zouraq

Being in the layer at the interface of the body with the outside world, keratinocyte stem cells constantly adapt and respond to environmental cues such as temperature and oxygen. However, until now, experiments involving temperature have only examined cold ...

EPFL2008

Characterization of mouse Dactylaplasia mutations: a model for human ectrodactyly SHFM3

Denis Duboule, Marc Samuel Friedli

SHFM3 is a limb malformation characterized by the absence of central digits. It has been shown that this condition is associated with tandem duplications of about 500 kb at 10q24. The Dactylaplasia mice display equivalent limb defects and the two correspon ...

2008

Molecular basis of RNA recognition by the human alternative splicing factor Fox-1

Luc Reymond

The Fox-1 protein regulates alternative splicing of tissue-specific exons by binding to GCAUG elements. Here, we report the soln. structure of the Fox-1 RNA binding domain (RBD) in complex with UGCAUGU. The last three nucleotides, UGU, are recognized in a ...

2006