Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Polyglutamine expansion in TBP alters transcription in cellular model of SCA17

ABSTRACT: The poorly conserved N-terminal half of TATA binding protein (TBP) harbours a polyglutamine stretch of 29 to 42 in normal individuals. Expansion of this stretch leading to more than 42 is associated with a neurodegenerative disorder spinocerebellar ataxia 17 (SCA17). This study compares the espression profile of mouse neuro 2a cells expressing a vector control and TBP varient with 59 polyglutamines known to form intra nuclear aggregates. Keywords: Neuro 2a, SCA17, TBP, polyglutamine

ORGANISM(S): Mus musculus

PROVIDER: GSE5807 | GEO | 2007/12/08

SECONDARY ACCESSION(S): PRJNA97183

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Effect of polyglutamine expanded TBP on microRNA expression in Neuro2A cells

2012-07-10 | GSE25592 | GEO

Effect of polyglutamine expanded TBP on microRNA expression in Neuro2A cells

Project description:The study was carried out to identify changes in expression of microRNAs in Neuro2A cells transfected with TATA binding protein (TBP) containing a polyglutamine expansion (59 glutamine-59Q) compared to normal TBP. Neuro2A cells were transfected in triplicate with either 16Q-TBP-GFP fusion or 59Q TBP-GFP Fusion and total RNA collected at 24 hours, 36 hours and 60 hours post-transfection. Each sample was subjected to microRNA microarray analysis as per manufacturer's (Agilent) instructions.

2012-07-09 | E-GEOD-25592 | biostudies-arrayexpress

Transcription profiling of cerebellum cells from wild type mice or mice overexpressing TATA-binding protein (TBP) or a mutant version of TBP

Project description:Transcription profiles were obtained for 2-month old mice. Three lines (WT, TBP-13Q12, and TBP105Q) were used in these experiments. Wild-type and 13Q mice are normal. The 13Q mice overexpress the normal protein on the RNA but not protein level and do not show a phenotype. The 105Q mice express a mutant version of the protein TBP and faithfully model the disease SCA17 (spinocerebellar ataxia-17, huntington disease-like 4, HDL4). The constructs containing mixed CAG/CAA trinucleotide repeats (and encoding polyglutamine tracts) of variable length were made using a previously described method (Michalik A et al., Biotechniques, 2001). Briefly, synthetic CAG/CAA oligonucleotides were subcloned into a cDNA construct of the normal mouse (13 CAG/CAA) TBP gene. Because of the mixed nature of the repeat, its length is stable in mitotic and meiotic transmission.

2007-11-09 | E-MEXP-1314 | biostudies-arrayexpress

RNA-seq identification of herpes simplex virus type 1 transcription in Neuro-2a cells overexpressing ONECUT2

Project description:This is a part of the study that shows that a host gene,ONECUT2 (OC2), promote herpes simplex virus 1 (HSV-1) transcription. These RNA-seq analyses viral genes transcription in Neuro-2a cells. Neuro-2a cells were transfected with pOC2△HOX2 and pcDNA plasmids for 42 hours then infected with herpes simple virus1 for 5 hours.

2023-09-18 | GSE241029 | GEO

Effects of the onecut family on herpes simplex virus 1 and host chromatin accessibility in Neuro-2a cells

Project description:This is a part of the study that shows that a host gene,ONECUT2( OC2), promotes herpes simplex virus 1 (HSV-1) genome accessibility. These ATAC analyses are for viral and host genome accessibility in Neuro-2a cells. Neuro-2a cells were transfected with pOC2△HOX2 and pcDNA plasmids for 42 hours then infected with herpes simple virus1 for 2 hours.

2023-09-18 | GSE240221 | GEO

Transcription profiling of mouse cerebellum cells containing expanded or normal CAG trinucleotide repeats in the coding region for TATA-binding protein (TBP)

Project description:Transcription profiles were obtained for 2-month old mice containing an expanded or normal CAG trinucleotide repeat in the coding region for TATA-binding protein (TBP). Three different genotypes were used : TBP-13Q (normal), TBP-71Q (71 repeats), and TBP-105Q (105 repeats). Two lines of TBP-71Q (lines 16 and 27) were used in these experiments. The 71Q and 105Q mice express a mutant version of the protein (TBP) and faithfully model the disease SCA17 (spinocerebellar ataxia-17, huntington disease-like 4, HDL4). The constructs containing mixed CAG/CAA trinucleotide repeats (and encoding polyglutamine tracts) of variable length were made using a previously described method (Michalik A et al., Biotechniques, 2001). Briefly, synthetic CAG/CAA oligonucleotides were subcloned into a cDNA construct of the normal mouse (13 CAG/CAA) TBP gene. Because of the mixed nature of the repeat, its length is stable in mitotic and meiotic transmission.

2007-11-09 | E-MEXP-1313 | biostudies-arrayexpress

Mot1 redistributes TBP from TATA-containing to TATA-less promoters

Project description:The Swi2/Snf2-family ATPase Mot1 displaces TBP from DNA in vitro, but the global relationship between Mot1 and TBP in vivo has been unclear. We therefore mapped the distribution of Mot1 and TBP on native chromatin at base-pair resolution. Mot1 and TBP binding sites coincide throughout the genome, and depletion of TBP results in a global decrease in Mot1 binding. Using midpoint-versus-length mapping to assess the spatial relationship of Mot1 and TBP on chromatin, we find evidence that Mot1 approaches TBP from the upstream direction, consistent with its in vitro mode of action. Strikingly, inactivation of Mot1 leads to both increases and decreases in TBP-genome association. Sites of TBP gain tend to contain robust TATA boxes, while sites of TBP loss contain poly(dA:dT) tracts that may contribute to nucleosome exclusion. We propose that the action of Mot1 is required to clear TBP from intrinsically preferred (TATA-containing) binding sites, ensuring sufficient soluble TBP to bind intrinsically disfavored (TATA-less) sites.

2013-10-21 | GSE44200 | GEO

TBP ChIP-chip on Jurkat cells

Project description:During mitosis, TATA-binding protein(TBP), which remains bound to DNA during mitosis, recruits PP2A and also interacts with a subunit of the condensin complex to allow efficient dephosphorylation and inactivation of condensin near these promoters to inhibit their compaction. These result suggest that TBP function is not only important for expression of genes transcribed bDuring mitosis, TATA-binding protein(TBP), which remains bound to DNA during mitosis, recruits PP2A and also interacts with a subunit of the condensin complex to allow efficient dephosphorylation and inactivation of condensin near these promoters to inhibit their compaction. These result suggest that TBP function is not only important for expression of genes transcribed by all three RNA polymerase during interphase, but also for transmitting the memory of gene activity through mitosis to daughter cellsy all three RNA polymerase during interphase, but also for transmitting the memory of gene activity through mitosis to daughter cells We use ChIP-chip approach to identify TBP-bindind sites in mitotic Jurkat cells at genome-wide level. Input DNA fragments and DNA fragments immunoprecipitated by TBP antibodies by ChIP assay on mitotic Jurkat cells were used to probe the Affymetrix Genechip human tiling 2.0c to identift TBP-binding sites in mitotic Jurkat cells. Input and ChIP sample were replicated three times as following: Input rep1, TBP ChIP1, Input rep2, TBP ChIP2, Input rep3, TBP ChIP3.

2010-04-03 | E-GEOD-12256 | biostudies-arrayexpress

Identification of the binding DNA of ONECUT2 by ChIP in Neuro-2a cells

Project description:These ChIP-seq analyses identified binding DNAs of ONEUCT2 in Neuro-2a (mouse neuroblastoma)cells. We overexpressed OC2ΔHOX (a gain-of-function mutant) in Neuro-2a cells, and infected the cells with HSV-1 at 40 hours post transfection. Samples infected for 5 hours were sequenced by ChIP for binding DNAs of the OC2 mutant in Neuro-2a cells.

2023-09-18 | GSE241863 | GEO

Mot1 redistributes TBP from TATA-containing to TATA-less promoters

2013-10-21 | E-GEOD-44200 | biostudies-arrayexpress