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ProteomicsThe role of Xist-mediated Polycomb recruitment in the initiation of X-chromosome inactivation
The role of Xist-mediated Polycomb recruitment in the initiation of X-chromosome inactivation
ORGANISM(S): Mus musculus (Mouse) 
2019-08-29 | PXD014287 | Pride
Mouse Xist Chirp-ms 
TranscriptomicsRNAi-mediated knockdown of Xist can rescue the impaired postimplantation development of cloned mouse embryo
Cloning mammals by somatic cell nuclear transfer (SCNT) is highly inefficient. Most SCNT-generated embryos die after implantation because of unidentified, complex epigenetic errors in the process of postimplantation embryonic development. Here, we identified the most upstream level of dysfunction le...
ORGANISM(S): Mus musculus 
2011-11-17 | E-GEOD-33208 | biostudies-arrayexpress
TranscriptomicsProbing Xist RNA structure in cells using Targeted Structure-Seq
The long non-coding RNA (lncRNA) Xist is a master regulator of X-chromosome inactivation in mammalian cells. Models for how Xist and other lncRNAs function depend on thermodynamically stable secondary and higher-order structures that RNAs can form in the context of a cell. Probing accessible RNA bas...
ORGANISM(S): Mus musculus 
2016-02-09 | E-GEOD-67667 | biostudies-arrayexpress
TranscriptomicsA comprehensive Xist interactome reveals cohesin repulsion and an RNA-directed chromosome conformation
The inactive X chromosome (Xi) serves as a model to understand gene silencing on a global scale. Here, we perform identification of direct RNA interacting proteins? (iDRiP) to isolate a comprehensive protein interactome for Xist, an RNA required for Xi silencing. We discover multiple classes of inte...
ORGANISM(S): Mus musculus 
2015-06-19 | E-GEOD-67516 | biostudies-arrayexpress
TranscriptomicsHigh-resolution chromosomal maps of Xist RNA reveal a two-step spreading mechanism during X-inactivation
The Xist long noncoding RNA (lncRNA) is essential for X-chromosome inactivation (XCI), the process by which mammals compensate for unequal numbers of sex chromosomes. During XCI, Xist coats the future inactive X (Xi) and recruits Polycomb Repressive Complex 2 (PRC2) to the X-inactivation center (Xic...
ORGANISM(S): Mus musculus 
2013-11-04 | E-GEOD-48649 | biostudies-arrayexpress
GenomicsXist recruits the X chromosome to the nuclear lamina to enable chromosome-wide silencing
Xist orchestrates X chromosome inactivation, a process that entails chromosome-wide silencing and remodeling of the 3-dimensional structure of the X chromosome. Yet, it remains unclear whether these changes in nuclear structure are mediated by Xist and whether they are required for silencing. Here w...
ORGANISM(S): Mus musculus 
2016-07-24 | E-GEOD-80510 | biostudies-arrayexpress
GenomicsThe inactive X chromosome adopts a unique three-dimensional conformation that is dependent on Xist RNA.
3D-topology of DNA in the cell nucleus provides a level of transcription regulation beyond the sequence of the linear DNA. To study the relationship between transcriptional activity and spatial environment of a gene, we have used allele-specific 4C-technology to produce high-resolution topology maps...
ORGANISM(S): Mus musculus 
2011-06-24 | E-GEOD-29509 | biostudies-arrayexpress
Transcriptomicsm6A RNA methylation promotes XIST-mediated transcriptional repression
XIST is a long non-coding RNA (lncRNA) that mediates transcriptional silencing of X chromosome genes. Here we show that XIST is highly methylated with at least 78 N6-methyladenosine (m6A) residues, a reversible base modification whose function in lncRNAs is unknown. We show that m6A formation in XIS...
ORGANISM(S): Homo sapiens 
2016-09-07 | E-GEOD-78030 | biostudies-arrayexpress
ProteomicsRole of Chd8 in Xist regulation
In this project, we have studied the role of Chd8 in Xist regulation and XCI initiation by means of Chd8 Knock-Downs (KD) and Knock-Out (KO).
ORGANISM(S): Homo sapiens (Human) Mus musculus (Mouse) 
2021-09-10 | PXD024155 | Pride
Epigenetics X chromosome inactivation (xci) Xist 
TranscriptomicsRNA-seq of mouse ES cells depleted of MOF, MSL1, MSL2 or KANSL3
We have studied the regulatory potential of MYST1-(MOF)-containing MSL and NSL complexes in mouse embryonic stem cells (ESCs) and neuronal progenitors. We find that both complexes influence transcription by binding to promoters as well as TSS-distal enhancer regions. In contrast to flies, the MSL co...
ORGANISM(S): Mus musculus 
2014-06-03 | E-GEOD-57698 | biostudies-arrayexpress
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