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Sample GSM7133632 Query DataSets for GSM7133632
Status Public on May 04, 2023
Title Kc167_RNApolIIRpb3_Aclarubicin_Rep3_(230301_MW_DmHs_AB8_22223_10)
Sample type SRA
 
Source name CUT&Tag
Organism Drosophila melanogaster
Characteristics antibody: Anti-Rpb3 Bethyl Laboratories Catalog # A303-771A
cell type: :Kc167 Drosophila melanogaster cell line originally derived from disaggregated 8-12 hour embryos.
Extracted molecule genomic DNA
Extraction protocol https://www.protocols.io/view/cut-amp-tag-direct-with-cutac-x54v9mkmzg3e/v8
CUT&Tag uses tagmentation in which the barcoded adapters are integrated on both sides of the insert, so that the DNA that is released is already a barcoded library. PMID:31036827
 
Library strategy OTHER
Library source genomic
Library selection other
Instrument model NextSeq 2000
 
Description CUT&Tag data profiling Total RNA pol II (Rpb3 subunit) in Drosophila melanogaster cells treated with aclarubicin for 30 minutes
Data processing Genome_build: dm6
1. We used cutadapt 2.9 with parameters "-j 8 --nextseq-trim 20 -m 20 -a AGATCGGAAGAGCACACGTCTGAACTCCAGTCA -A AGATCGGAAGAGCGTCGTGTAGGGAAAGAGTGT -Z" to trim adapters from 50bp paired-end reads. 2. We used Bowtie2 2.4.2 with options "--very-sensitive-local --soft-clipped-unmapped-tlen --dovetail --no-mixed --no-discordant -q --phred33 -I 10 -X 1000" to map the paired-end 50bp reads to the dm6 Drosophila melanogaster reference sequence obtained from UCSC. 3. We used Bowtie2 2.4.2 with options "--end-to-end --very-sensitive --no-overlap --no-dovetail --no-mixed --no-discordant -q --phred33 -I 10 -X 1000" to map the same paired-end 50bp reads to the masked hg19 Homo sapiens reference sequence obtained from UCSC. 4. We extracted properly paired reads from the D. melanogaster alignments. 5. We counted the properly paired reads from the Homo sapiens alignments. 6. We used bedtools 2.30.0 genomecov to make a normalized count dm6 track which is the fraction of counts at each base pair scaled by the size of the dm6 reference sequence (137567484) so that if the counts were uniformly distributed across the reference sequence there would be one at each position (Supplementary file .norm.bw) 7. We used bedtools 2.30.0 genomecov with a scaling factor of (10000/number of fragments mapped to masked hg19) to create a calibrated dm6 track file (Supplementary file .Hs_spike.bw).
 
Submission date Mar 30, 2023
Last update date May 04, 2023
Contact name Jorja Henikoff
E-mail(s) jorja@fhcrc.org
Phone 206-667-4850
Organization name Fred Hutchinson Cancer Research Center
Department Basic Sciences
Lab Henikoff
Street address 1100 Fairview AV N, A1-162
City Seattle
State/province WA
ZIP/Postal code 98109-1024
Country USA
 
Platform ID GPL30203
Series (1)
GSE221252 Aclarubicin stimulates RNA polymerase II elongation at closely spaced divergent promoters
Relations
BioSample SAMN33988806
SRA SRX19822061

Supplementary file Size Download File type/resource
GSM7133632_Kc167_RNApolIIRpb3_Aclarubicin_Rep3.Hs_spike.bw 7.7 Mb (ftp)(http) BW
GSM7133632_Kc167_RNApolIIRpb3_Aclarubicin_Rep3.norm.bw 7.7 Mb (ftp)(http) BW
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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