Sample information curated by ChIP-Atlas

Antigen

Antigen Class
Histone
Antigen
H3K27ac

Cell type

Cell type Class
Others
Cell type
Cochlea
MeSH Description
The part of the inner ear (LABYRINTH) that is concerned with hearing. It forms the anterior part of the labyrinth, as a snail-like structure that is situated almost horizontally anterior to the VESTIBULAR LABYRINTH.

Attributes by original data submitter

Sample

source_name
Cochlea
genotype/variation
Atoh1::nGFP
developmental stage
postnatal day 1
tissue
Cochlea
chip antibody
H3K27ac

Sequenced DNA Library

library_strategy
ChIP-Seq
library_source
GENOMIC
library_selection
ChIP
library_construction_protocol
Cells were collected by FACS purification into cold PBS, and centrifuged 500 xg for 15 min. Cell pellet were resuspended with 50 ul transposition buffer consisting of 10mM Tris-HCL pH8.0, 5 mM MgCl2, 10% DMF, 0.2% NP40, and home-made transposase Tn5. Transposition was performed at 37 degree for 20 min. DNA was collected immediately after transposition using Qiagen Mini-elute kit. Histone ChIP-seq protocol was developed by us based on μChIP-PCR protocol published previously (Stojanova et al., 2015) with additional Tn5 tagmentation step. Briefly, chromatin was cross-linked with 1% formaldehyde (Thermo Fisher) for 8 min, quenched with 125mM Glycine (Sigma) for 5 min at room temperature, sonicated using the microtip of a High Intensity Ultrasonic Processor (Sonics & Materials, Newtown, CT; amplitude 50, power 50) for 8 x 30 sec with 30 sec pause, tagmentated with Tn5 transposase for 30 min at 37°C, incubated with antibody complexed with Dynabeads Protein A (Thermo Fisher) overnight at 4°C, precipitated and washed three times on magnetic rack, and finally PCR amplified with primers matching Tn5 adapters.

Sequencing Platform

instrument_model
NextSeq 500

mm10

Number of total reads
42707582
Reads aligned (%)
97.1
Duplicates removed (%)
49.9
Number of peaks
1360 (qval < 1E-05)

mm9

Number of total reads
42707582
Reads aligned (%)
97.0
Duplicates removed (%)
50.2
Number of peaks
1234 (qval < 1E-05)

Base call quality data from DBCLS SRA