Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

RNA immunoprecipiation identifies novel targets of DAZL in human fetal ovary

ABSTRACT: We identified 429 potential RNA targets of DAZL in the human fetal ovary (padj<0.01), with function in synaptonemal complex formation and recombination (SYCP1, SYCP3, HORMAD1, TRIP13, TEX11), structural maintenance of chromosomes/cohesin formation and spindle assembly checkpoint (SMC1B, RAD21L, MAD2L1), and DNA repair (RAD18, RAD51, RAD54B).

ORGANISM(S): Homo sapiens

PROVIDER: GSE81524 | GEO | 2017/01/10

SECONDARY ACCESSION(S): PRJNA321858

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Truncated DAZL mutation reduces NANOS3 expression in primordial germ cells and leads to premature ovarian insufficiency

Project description:Primary ovarian insufficiency (POI) is a complex disorder that affects many genes and the underlying molecular mechanisms remain to be fully elucidated. In this study, a homozygous point mutation, c.808C>T, in the DAZL gene of a POI patient was identified. This homozygous variant causes a C-terminal truncation of DAZL and down-regulation of germ-line gene NANOS3 expression, among other dysregulated genes, in human primordial germ cells (hPGCs) in vitro. Mechanistically, we discovered that the truncated DAZL had defects in regulating mRNA translation for NANOS3, VASA, and SYCP3 - all essential for gametogenesis. Additionally, the truncated DAZL showed impaired interaction with Poly(A)-binding proteins (PABPs), a crucial component of the translation initiation complex. At the cellular level, the truncated mutation resulted in increased apoptosis of in vitro hPGCs. Our findings reveal that the c.808C>T mutation in DAZL causes dysregulated expressions of many genes, increases germ cell apoptosis and ultimately leads to POI.

2023-10-18 | GSE245155 | GEO

HORMAD1 mutation disrupts synaptonemal complex formation and chromosomal segregation in fertilized eggs

Project description:Hormad1 encodes a protein that contains a HORMA domain, and unlike Mad2, Hormad1 expression is germ cell specific. We discovered that both male and female are infertile, and HORMAD1 has important function in synaptonemal complex formation, sex chromosome inactivation during spermatogenesis and chromosome segregation in meiosis.

2010-04-27 | GSE21524 | GEO

Dazl HITS-CLIP on 25dpp C57BL/6 mouse testes

Project description:The autosomal gene Dazl is a member of highly conservative DAZ family, all of which contains a RNA binding domain and expresses in germ cells. In mice, Dazl plays an essential role in germ cell development, germ cell lost in Dazl knockout mouse on pure C57BL/6 strain background. Here we use HITS-CLIP to globally characterize the genome-wide target RNA of Dazl in mouse testes. Sequencing data provides large quantities of clues to help us to get close to the truth of Dazl function. We find over 1700 RNAs are bind by Dazl mainly at 3’UTR and the genes associated with transcription, RNA splicing and reproductive cellular process are enriched significantly.

2019-10-09 | GSE113710 | GEO

Principles of chromosome organization for meiotic recombination

Project description:In meiotic cells, chromosomes are organized as chromatin loop arrays anchored to a protein axis. This organization is essential to regulate meiotic recombination, from DNA double-strand break (DSB) formation to their repair. In mammals, it is unknown how chromatin loops are organized along the genome and how proteins participating in DSB formation are tethered to the chromosome axes. Here, we identified three categories of axis-associated genomic sites: PRDM9 binding sites, where DSBs form, binding sites of the insulator protein CTCF, and H3K4me3-enriched sites. We demonstrated that PRDM9 promotes the recruitment of MEI4 and IHO1, two proteins essential for DSB formation. In turn, IHO1 anchors DSB sites to the axis components HORMAD1 and SYCP3. We discovered that IHO1, HORMAD1 and SYCP3 are associated at the DSB ends during DSB repair. Our results highlight how interactions of proteins with specific genomic elements shape the meiotic chromosome organization for recombination.

2024-04-23 | GSE262343 | GEO

ChIP-Seq of Dazl in mouse embryonic stem cells

Project description:We developed a method to identify chromatin-associated proteins by mass spectrometry. In addition to many known DNA and chromatin-binders, we identified several RNA-binding proteins in the chromatin composition of mouse embryonic stem cells (mESC). Interestingly, we found Dazl as a RBP that specifically binds to chromatin in mESC grown in 2iL condition. So far, Dazl was reported as a RBP that regulates the stability of transcripts in cytoplasm. To identify the binding sites of Dazl on the genome, we carried out a ChIP-seq experiment. As a result, we detected about 1300 reproducible Dazl ChIP-seq peaks. Interestingly, most of the peaks are located close to the transcription start sites of developmental and pluripotency-related genes.

2020-12-25 | E-MTAB-9302 | biostudies-arrayexpress

RNA-seq of 10dpp wild type and Dazl SKO mouse testes

Project description:The autosomal gene Dazl is a member of highly conservative DAZ family, all of which contains a RNA binding domain and expresses in germ cells. In mice, Dazl plays an essential role in germ cell development, germ cell lost in Dazl knockout mouse on pure C57BL/6 strain background. Here we generated conditional DAZL knockout mice which allowed us to examine the roles of DAZL in postnatal spermatogenesis without affecting its early function in PGC. RNA was extracted from 10dpp wild type and Stra8-cre KO mouse testes to perform RNA-seq, StringTie software was used to assess the expression level by formula log2(FPKM+1).

2019-10-09 | GSE114042 | GEO

Mus musculus Dazl-deficient fetal ovary transcriptome

Project description:Identification of the mouse embryonic germ cell Dazl-/- transcriptome

2015-08-13 | GSE70358 | GEO

Dazl maintains proliferating germ cells through a network of polyA-proximal mRNA interactions [P6 iCLIP]

Project description:Dazl (deleted in azoospermia like) is a member of the DAZ family of germ cell-restricted RNA binding proteins required for gametogenesis from worm to human. The direct RNA targets and functions of these essential proteins are poorly understood. Here, we generated high-resolution, transcriptome-wide maps of Dazl-RNA interactions in mouse testes. These maps provide important insights into the mechanism of Dazl recruitment to mRNA and reveal Dazl binding to thousands of mRNAs predominantly through sequence-specific interactions near the polyA tail. Using transgenic mice and fluorescence activated cell sorting (FACS), we isolated DAZL knockout germ cells and used RNA-Seq to identify mRNAs sensitive to DAZL-ablation. Intersecting the RNA-Seq and Dazl-RNA interaction datasets revealed that Dazl enhances expression of a subset of directly-bound transcripts, namely mRNAs for a network of essential cell cycle regulatory genes. Collectively, our integrative analysis delineates a Dazl-dependent post-transcriptional gene regulatory program essential for mammalian germ cell maintenance.

2018-05-22 | GSE108183 | GEO

Dazl maintains proliferating germ cells through a network of polyA-proximal mRNA interactions [Adult RNA-Seq]

2018-05-22 | GSE108992 | GEO

Dazl maintains proliferating germ cells through a network of polyA-proximal mRNA interactions [Adult PolyA-Seq]

2018-05-22 | GSE108991 | GEO