U.S. flag

An official website of the United States government

Format

Send to:

Choose Destination

SRX24605972: GSM8279843: ATAC_Sus_GCs_Fosl2_KD_1; Sus scrofa; ATAC-seq
1 ILLUMINA (Illumina NovaSeq 6000) run: 57.3M spots, 17.2G bases, 5.1Gb downloads

External Id: GSM8279843_r1
Submitted by: Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang
Study: Fosl2 orchestrates chromatin accessibility to determine granulosa cells developmental events in mammals [ATAC-seq]
show Abstracthide Abstract
Granulosa cells (GCs) behave as the most dynamically responsive cell lineage to encourage continuous ovarian folliculogenesis; however, the determinants of their developmental trajectories and interplay with downstream transcription circuitry remain poorly understood. In this research, we delineate the genome-wide redistribution of accessible chromatin regions that drive broad developmental-related transcriptomic changes aacross porcine and murine follicular stages. We report the distinct GCs-activated accessibility regions (GAAs), are responsible for augmenting of flanking GCs-involved developmental genes (GDGs) expression, serving as a key requirement for transcription in response to developmental cues. Mechanistically, the transcription factor Fosl2 is robustly recruited to GAAs, facilitating chromatin accessibility state transition. The enlarged GAAs signal driven by Fosl2 loading subsequently induces a significant upregulation of adjacent GDG expression. Additionally, the germ cell-specific deletion of Fols2 induces perturbations in GCs cellularity, which consequently precipitate endocrine dysfunction and a progressive deterioration in reproductive competence in murine models. Together, our research provides a detailed depiction of the dynamic chromatin accessibility landscape throughout the developmental continuum of GCs, revealing the indispensable function of Fosl2 in controlling the transcriptional activation via the reconfiguration of the widespread chromatin state. Overall design: Paired-end ATAC-seq of oocytes and GCs in pig and mouse to sought the accessible chromatin spanning follicular stages.
Sample: ATAC_Sus_GCs_Fosl2_KD_1
SAMN41455460 • SRS21343542 • All experiments • All runs
Organism: Sus scrofa
Library:
Name: GSM8279843
Instrument: Illumina NovaSeq 6000
Strategy: ATAC-seq
Source: GENOMIC
Selection: other
Layout: PAIRED
Construction protocol: In brief, a total of 50 oocytes with zona pellucida removed, and 50,000 GCs were lysed respectively in lysis buffer (10 mM Tris-HCl (pH7.4), 10 mM NaCl, 3mM MgCl2, 0.1%Igepal CA-630, 0.1%Tween-20, 0.01%Digitonin, 1% Cytochalasin B, 0.1%collagenase I) for 10 min on ice to generate the nuclei. Nuclei were then spun at 500g for 5 min immediately to remove the supernatant. Tn5 transposome and tagmentation procedures were subjected at 37°C for 30 min (Vazyme, TD501). DNA were purified using 2×AMPure beads (Beckman, A63881) and conducted to 16 cycles (for oocytes) or 14 cycles (for GCs) of library amplification using the following PCR conditions: 72°C for 3 min; 98°C for 30s; and thermocycling at 98 °C for 15s, 60°C for 30 s and 72°C for 3 min; following by 72°C 5 min.The amplified DNA was size-selected using AMPure beads for 200–500bp DNA fragments. All libraries were sequenced by the Novaseq 6000 platform to at least a depth of 4.0×107 reads accordingly.
Runs: 1 run, 57.3M spots, 17.2G bases, 5.1Gb
Run# of Spots# of BasesSizePublished
SRR2908173457,309,45417.2G5.1Gb2024-06-01

ID:
32924734

Supplemental Content

Search details

See more...

Recent activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...