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Inducible DamID systems for genomic mapping of chromatin proteins in Drosophila

ABSTRACT: Inducible DamID systems for genomic mapping of chromatin proteins in Drosophila

PROVIDER: PRJNA305508 | ENA |

REPOSITORIES: ENA

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Inducible DamID systems for genomic mapping of chromatin proteins in Drosophila [DamID-seq]

Project description:Dam identification (DamID) is a powerful technique to generate genome-wide maps of chromatin protein binding. Due to its high sensitivity it is particularly suited to study the genome interactions of chromatin proteins in small tissue samples in model organisms such as Drosophila. Here we report an intein-based approach to tune the expression level of Dam and Dam-fusion proteins in Drosophila by addition of a ligand to fly food. This helps to suppress toxic effects of Dam. In addition we describe a strategy for genetically controlled expression of Dam in a specific cell type in complex tissues. We demonstrate the utility of the latter by generating a glia-specific map of Polycomb in small samples of brain tissue. We determined DamID scores for Polycomb, normalized by Dam only control, for Drosophila larval central brain, larval fat bodies and repo+ glial cells of larval central brain. All samples were performed with 2 biological replicates. In case of Dam only control for larval central brain, each biological replicate was performed with 3 technical replicates.

2016-03-17 | E-GEOD-75831 | biostudies-arrayexpress

Inducible DamID systems for genomic mapping of chromatin proteins in Drosophila [DamID-seq]

2016-03-17 | GSE75831 | GEO

Inducible DamID systems for genomic mapping of chromatin proteins in Drosophila [RNA-seq]

Project description:Dam identification (DamID) is a powerful technique to generate genome-wide maps of chromatin protein binding. Due to its high sensitivity it is particularly suited to study the genome interactions of chromatin proteins in small tissue samples in model organisms such as Drosophila. Here we report an intein-based approach to tune the expression level of Dam and Dam-fusion proteins in Drosophila by addition of a ligand to fly food. This helps to suppress toxic effects of Dam. In addition we describe a strategy for genetically controlled expression of Dam in a specific cell type in complex tissues. We demonstrate the utility of the latter by generating a glia-specific map of Polycomb in small samples of brain tissue. RNA sequencing of 3 samples, each using 2 biological replicates.

2016-03-17 | E-GEOD-75833 | biostudies-arrayexpress

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2016-03-17 | GSE75833 | GEO

Inducible DamID systems for genomic mapping of chromatin proteins in Drosophila.

Project description: Not available

| S-EPMC4937306 | biostudies-literature

Inducible DamID systems for genomic mapping of chromatin proteins in Drosophila

Project description:This SuperSeries is composed of the SubSeries listed below.

2016-03-17 | GSE75835 | GEO

Inducible DamID systems for genomic mapping of chromatin proteins in Drosophila

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2016-03-17 | E-GEOD-75835 | biostudies-arrayexpress

Tissue-specific DamID profiling of chromatin proteins in Drosophila melanogaster

Project description:Analysis of gene expression regulation typically requires identification of genomic sites where regulatory proteins bind. For this purpose, ChIP and DamID methods applied to cell lines or model organisms are now routinely used, even in selected cell types. In this work, we present modifications to experimental DamID protocol, as well as a custom data processing algorithm that allows to confidently identify genomic sites enriched with the proteins of interest. This algorithm is implemented in Perl and is also available as executable files thereby making DamID analysis relatively straightforward. Finally, we demonstrate how this pipeline performs when fed with real experimental data.

2016-08-30 | GSE86205 | GEO

Drosophila melanogaster

Project description:Inducible DamID systems for genomic mapping of chromatin proteins in Drosophila [DamID-seq]

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DamID in HeLa-C cells

Project description:DamID with sPom121, Nup98 and control proteins (GFP and Cbx1)

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