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Sample GSM6664861 Query DataSets for GSM6664861
Status Public on Nov 23, 2023
Title E45_Bla_CDX2_CR_rep2
Sample type SRA
 
Source name E4.5 blatocyst
Organism Mus musculus
Characteristics genotype: wild type
strain: mix
antibody: Cdx2 (CST, 12306)
Growth protocol For collection of wildtypes E4.25 blastocyst, 4–6-week-old female mice were injected with pregnant mare serum gonadotropin followed by human chorionic gonadotropin (hCG; Ningbo Hormone Product Co., Cat # 110251283 Ltd., China 10 IU) 48 hours before being mated with malemice. E4.25 blastocyst were flushed out from the uterus at E4.25.
Extracted molecule genomic DNA
Extraction protocol Cells or embyos were lysed in wash buffer.
CUT&RUN was performed as previously reported (Skene et al., 2018; Skene and Henikoff, 2017) with modifications. Briefly, after removing the zona pellucida with Tyrode’s solution (Sigma-Aldrich, T1788) or 0.5% (m/v) Protease from Streptomyces griseus (Sigma-Aldrich, P8811), early embryos were incubated with Concanavalin-coated magnetic beads (Polyscience, 86057) for 10 min at room temperature on a thermomixer at 400 rpm. Samples were then incubated with primary antibody at a ratio of 1:100 at 4℃ for 3-5 hours on a thermomixer at 400 rpm. After washing for one time, beads were incubated with pA-MNase (to a final concentration of 400-700ng/mL) (a gift from Steven Henikoff lab) at 4℃ for 1 hours on a thermomixer at 400 rpm. After two times of washing, targeted digestion was performed by adding 2μL of 100mM CaCl2 for 30 mins on ice, followed by termination by adding an equal volume of 2 × stop buffer. Samples were then incubated at 37℃ for 20 mins for fragment releasing. The total samples or supernatants were digested with Proteinase K (NEB, P8107S) and purified using phenol:chloroform:isoamyl alcohol (25:24:1, v/v) followed by ethanol purification at -80℃ overnight. The next day, DNA was purified and subjected to Truseq library preparation using NEBNext Ultra II DNA Library Prep Kit for Illumina (NEB, E7645S). Sequencing was done using the HiSeq X Ten system or NovaSeq (Illumina) according to the manufacturer’s protocol.
 
Library strategy OTHER
Library source genomic
Library selection other
Instrument model Illumina NovaSeq 6000
 
Data processing library strategy: CUT&RUN
bulk RNA-seq reads were mapped to the mm9 reference genome using Tophat (version 2.0.11).The gene expression levels were calculated by Cufflinks (version 2.2.1). RefFlat database from UCSC genome browser was used with microRNA and repeats excluded.
CUT&RUN reads were aligned to the mm9 genome with the parameters: -t -q -N 1 -L 25 -X 2000 --no-mixed --no-discordant by Bowtie2 v2.3.5. Aligned reads were filtered with a minimum MAPQ of 20, and PCR duplicates were removed using Picard MarkDuplicates v1.119. Read coverages over mm9 genome were estimated by bamCoverage from deepTools v3.3.1 with parameters --binSize 100 --normalizeUsing RPKM.
Assembly: mm9
Supplementary files format and content: Bigwig for CUT&RUN, ATAC-seq tracks, gene expression table for RNA-seq data
 
Submission date Oct 20, 2022
Last update date Nov 23, 2023
Contact name Lijia Li
E-mail(s) lijiali1119@gmail.com
Organization name Tsinghua University
Department School of Life Science
Lab Wei Xie lab
Street address Haidian District
City Beijing
ZIP/Postal code 100084
Country China
 
Platform ID GPL24247
Series (1)
GSE216256 Lineage regulators TFAP2C and NR5A2 function as bipotency activators in totipotent embryos
Relations
BioSample SAMN31394237
SRA SRX17979246

Supplementary file Size Download File type/resource
GSM6664861_E45_Bla_CDX2_CR_rep2.bw 62.1 Mb (ftp)(http) BW
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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