Philipp Bucher

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Probabilistic partitioning methods to find significant patterns in ChIP-Seq data

Bernard Moret, Philipp Bucher, Nishanth Ulhas Nair, Sunil Kumar

Motivation: We have witnessed an enormous increase in ChIP-Seq data for histone modifications in the past few years. Discovering significant patterns in these data is an important problem for understanding biological mechanisms. Results: We propose probabi ...

Oxford University Press2014

EPD and EPDnew, high-quality promoter resources in the next-generation sequencing era

Giovanna Ambrosini, Philipp Bucher, René Dreos, Rouayda Cavin Perier

The Eukaryotic Promoter Database (EPD), available online at http://epd.vital-it.ch, is a collection of experimentally defined eukaryotic POL II promoters which has been maintained for more than 25 years. A promoter is represented by a single position in th ...

Oxford University Press2013

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Background: The Nuclear Factor I (NFI) family of DNA binding proteins (also called CCAAT box transcription factors or CTF) is involved in both DNA replication and gene expression regulation. Using chromatin immuno-precipitation and high throughput sequenci ...

BioMed Central2013

Critical assessment of automated flow cytometry data analysis techniques

Giovanna Ambrosini, Philipp Bucher, René Dreos, Pascal Meyer, Slavica Dimitrieva Janeva, Nima Aghaeepour

Traditional methods for flow cytometry (FCM) data processing rely on subjective manual gating. Recently, several groups have developed computational methods for identifying cell populations in multidimensional FCM data. The Flow Cytometry: Critical Assessm ...

Nature Publishing Group2013

UCNEbase (http://ccg.vital-it.ch/UCNEbase) is a free, web-accessible information resource on the evolution and genomic organization of ultra-conserved non-coding elements (UCNEs). It currently covers 4351 such elements in 18 different species. The majority ...

Oxford University Press2013

Differentiation trees for cell developmental history based on histone modifications

Bernard Moret, Philipp Bucher, Yu Lin, Nishanth Ulhas Nair

Springer Verlag2013

RNA Profiling and Chromatin Immunoprecipitation-Sequencing Reveal that PTF1a Stabilizes Pancreas Progenitor Identity via the Control of MNX1/HLXB9 and a Network of Other Transcription Factors

Emilie Gesina, Philipp Bucher, Anne Grapin-Botton, Nancy Thompson

Pancreas development is initiated by the specification and expansion of a small group of endodermal cells. Several transcription factors are crucial for progenitor maintenance and expansion, but their interactions and the downstream targets mediating their ...

American Society for Microbiology2012

ChIPnorm: a statistical method for normalizing and identifying differential regions in histone modification ChIP-seq libraries

Bernard Moret, Philipp Bucher, Nishanth Ulhas Nair

The advent of high-throughput technologies such as ChIP-seq has made possible the study of histone modifications. A problem of particular interest is the identification of regions of the genome where different cell types from the same organism exhibit diff ...

Public Library of Science2012

Genomic context analysis reveals dense interaction network between vertebrate ultraconserved non-coding elements

Philipp Bucher, Slavica Dimitrieva Janeva

Motivation: Genomic context analysis, also known as phylogenetic profiling, is widely used to infer functional interactions between proteins but rarely applied to non-coding cis-regulatory DNA elements. We were wondering whether this approach could provide ...

Oxford University Press2012

Commonly used RNA folding programs compute the minimum free energy structure of a sequence under the pseudoknot exclusion constraint. They are based on Zuker's algorithm which runs in time O(n^3). Recently, it has been claimed that RNA folding can be achie ...

2012

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