GSM3357695: pooled SMMC-7721 Input DNA; Homo sapiens; ChIP-Seq
Sample information curated by ChIP-Atlas
Antigen
Antigen Class
Input control
Antigen
Input control
Cell type
Cell type Class
Liver
Cell type
Hepatocellular carcinoma
NA
NA
Attributes by original data submitter
Sample
source_name
Hepatocellular carcinoma
cell strain
SMMC-7721
chip antibody
none
Sequenced DNA Library
library_strategy
ChIP-Seq
library_source
GENOMIC
library_selection
ChIP
library_construction_protocol
Cells were fixed with 1% formaldehyde for 15 min and quenched with 0.125 M glycine. Lysates were sonicated with a microtip sonicator to shear the DNA. Genomic DNA (Input) was prepared by treating aliquots of chromatin with RNase, proteinase K and heat for de-crosslinking, followed by ethanol precipitation. For each ChIP reaction, 30 ug of chromatin was precleared with protein A agarose beads (Invitrogen). ChIP reaction was set up using precleared chromatin and antibody and incubated overnight at 4 C. Protein A agarose beads were added and incubation at 4 C was continued for another 3 hr. Immune complexes were washed, eluted from the beads with SDS buffer, and subjected to RNase and proteinase K treatment. Crosslinks were reversed by incubation overnight at 65 C, and ChIP DNA was purified by phenol-chloroform extraction and ethanol precipitation. Illumina sequencing libraries were prepared from the ChIP and Input DNAs by the standard consecutive enzymatic steps of end-polishing, dA-addition, and adaptor ligation. After a final PCR amplification step, the resulting DNA libraries were quantified and sequenced on NextSeq 500.