Genomics

Dataset Information

103

Functional analysis of Kap1 genomic recruitment


ABSTRACT: A current model for the genomic recruitment of Kap1 is via its interaction with KRAB domain-containing zinc finger transcription factors. We have performed ChIP-seq for various mutant KAP1 proteins and shown that this recruitment mechanism mediates binding of KAP1 only to the 3’ ends of zinc finger genes and that other factors are involved in recruiting KAP1 to promoter regions. 17 total ChIP-seq datasets; three different FLAG-KAP1 mutants, one FLAG-KAP1 wild type, and four different Input datasets from 4 different stable cell lines derived from HEK293 cells: 1 FLAG-KAP1 wild type dataset and 1 Input dataset done from HEK293 stable cells; 1 FLAG-KAP1 HP1BDmut dataset and 1 Input dataset done from HEK293 stable cells, 1 FLAG-KAP1 N-ter RBCC{delta}mut dataset and 1 Input dataset done from HEK293 stable cells, 1 FLAG-KAP1 C-ter PB{delta}mut dataset and 1 Input dataset done from HEK293 stable cells. One FLAG-KAP1 N/C-ter (RBCC+PB){delta}mut dataset done from T-REx HEK293 stable cells. One endogenous KAP1 dataset done from HEK293 cells. Two independent ELK4 datasets done from duplicate HEK293 cells. One endogenous Kap1 dataset and one Input dataset from a stable cell line derived from U2OS cells.

ORGANISM(S): Homo sapiens  

SUBMITTER: Peggy J Farnham  Philip Cayting   Sushma Iyengar    

PROVIDER: E-GEOD-27929 | ArrayExpress | 2014-05-02

SECONDARY ACCESSION(S): GSE27929SRP006844PRJNA137849

REPOSITORIES: GEO, ArrayExpress, ENA

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Publications

Functional analysis of KAP1 genomic recruitment.

Iyengar Sushma S   Ivanov Alexey V AV   Jin Victor X VX   Rauscher Frank J FJ   Farnham Peggy J PJ  

Molecular and cellular biology 20110222 9


TRIM28 (KAP1) is upregulated in many cancers and has been implicated in both transcriptional activation and repression. Using chromatin immunoprecipitation and sequencing, we show that KAP1 binding sites fall into several categories, specifically, the 3' coding exons of zinc finger (ZNF) genes and promoter regions of ZNFs and other genes. The currently accepted model is that KAP1 is recruited to the genome via interaction of its N-terminal RBCC domain with KRAB ZNFs (KRAB domain containing ZNFs)  ...[more]

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