NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM2775128 Query DataSets for GSM2775128
Status Public on Jan 28, 2019
Title Kc167_dsclamp_clamp-abcam_11
Sample type SRA
 
Source name Kc167 cells, dsCLAMP, clamp-abcam ChIP
Organism Drosophila melanogaster
Characteristics cell line: Kc167
treatment: dsCLAMP
chip antibody: clamp-abcam
Treatment protocol 10 million Kc167 cells were transfected with 5 ug of dsRNA (DRSC 29935) against Clamp by using Amexa cell line Nucleofector kit V (Lonza) and incubated 6 days at 25°C to obtain significant knockdown of Clamp.
Growth protocol Kc167 cells-derived from Drosophila embryo were routinely maintained in CCM3 (Thermo Scientific HyClone, Logan, UT). The cells were maintained in monolayer at 25°C.
Extracted molecule genomic DNA
Extraction protocol ChIP-seq was performed as described previously (Matzat et al., 2012).
ChIP antibodies: clamp: Rabbit anti-CLAMP antibody (sdix, Cat no# 4988.00.02); clamp-abcam: Rabbit anti-CLAMP antibody (made through Abcam by Erica N. Larschan, Brown University); suhw: Guinea pig serum against Su(Hw) (Moshkovich and Lei, 2010 PMID: 21852534); mod: Rabbit serum against Mod(mdg4)2.2 (Van Bortle et al., 2012, PMID: 22722341); cp190: Rabbit serum against CP190 (Pai et al. 2004, PMID: 15574329).
ChIP-seq library was prepared as described previously (Matzat et al., 2012).
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina HiSeq 2500
 
Description ib47_dsclamp_clamp-abcam
Processed data file: dsclamp_clamp-abcam.narrowPeak
Data processing Reads were trimmed using cutadapt v1.8.1 with arguments --quality-cutoff 20 -a AGATCGGAAGAGC --minimum-length 25 --overlap 10
Trimmed reads were mapped with bowtie2 v2.2.9 with default arguments to the dm6 assembly.
Multimappers were removed from aligned reads with samtools v1.2 vew command with argument -q 20.
Duplicates were removed from mapped, uniquely-mapping reads with picard MarkDuplicates v2.9.2.
Macs2 v2.1.0.20150731 was used to call peaks by providing replicate Ips and inputs as multiple BAMs, effectively calling peaks on pooled samples, and using additional arguments -f BAM --gsize=dm
Genome_build: dm6 (Release 6 plus ISO1 MT)
Supplementary_files_format_and_content: narrowPeak files of called peaks as output from macs2 peak-calling.
 
Submission date Sep 07, 2017
Last update date May 15, 2019
Contact name Cameron Palmer
E-mail(s) palmercd@nih.gov
Organization name National Institutes of Health
Department National Institute of Diabetes and Digestive and Kidney Diseases
Lab Laboratory of Cellular and Developmental Biology
Street address 50 South Drive
City Bethesda
State/province MD
ZIP/Postal code 20892
Country USA
 
Platform ID GPL17275
Series (2)
GSE103601 The zinc-finger protein CLAMP promotes gypsy chromatin insulator function in Drosophila: ChIP-seq of CP190, Su(Hw), Mod(mdg4) for genome-wide overlap with CLAMP
GSE118700 The zinc-finger protein CLAMP promotes gypsy chromatin insulator function in Drosophila
Relations
BioSample SAMN07614938
SRA SRX3167261

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA
Processed data are available on Series record

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap