Experiment / E87X95BTMTargeted Genomic Integration MPRA

Housekeeping-promoter CpG mutants in WT and Dnmt triple-knockout cells

CG dinucleotides enhance promoter activity independent of DNA methylation

TrAC-seq compared CpG-depleted mutant versions of mouse housekeeping promoters in wild-type TC-1 cells and matched Dnmt1/Dnmt3a/Dnmt3b triple-knockout derivatives. Each construct is annotated with its promoter coordinates, CpG mutation percentage, sequence composition, and WT/TKO activity.

Processed tables are specific to each experiment. Column names, units, measurements, and table structure are not standardized across the database. Check this experiment’s column definitions and quality-control notes before comparing or combining data.

Perturbation & assay details

Basal / untreated; matched wild-type and Dnmt1/Dnmt3a/Dnmt3b triple-knockout TC-1 derivatives

TrAC-seq used pooled promoter-barcode cassettes inserted by recombinase-mediated cassette exchange into the beta-globin locus. RNA/cDNA and genomic-DNA barcodes were sequenced separately; per-barcode RNA/DNA enrichment used the study pseudocount alpha=0.05 and was summarized across barcodes and three biological replicates. CpGs outside selected bound transcription-factor motifs were mutated, and the same library was assayed in WT and Dnmt triple-knockout cells.

Processed data

50 rows per page. Click a cell to inspect its full value.

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Filters apply to this table only. The CSV download contains the complete processed table; filtered rows are available through the API.

Column dictionary · 43 definitions
element_id
Unique promoter construct identifier; the source label encodes chromosome, interval, strand, and mutation percentage.
library
Source expression library name.
gc_percent
GC content of the tested promoter construct, in percent.
cpg_percent
CpG content of the tested promoter construct, as reported by the source.
cpg_observed_expected
Observed-over-expected CpG density (OE) for the construct.
cpg_sites
Number of CpG sites in the construct.
chromosome
Mouse chromosome of the source promoter interval.
start
Start coordinate of the source promoter interval in mm9.
end
End coordinate of the source promoter interval in mm9.
strand
Strand of the source promoter interval.
cpg_mutation
Percentage label for the fraction of designated CpGs mutated in the construct.
activity_wt_rep1
WT RNA/DNA barcode enrichment for biological replicate 1; source activity includes the study pseudocount.
dna_barcodes_wt_rep1
Number of WT DNA-supported barcodes contributing to replicate 1 activity.
activity_wt_rep2
WT RNA/DNA barcode enrichment for biological replicate 2; source activity includes the study pseudocount.
dna_barcodes_wt_rep2
Number of WT DNA-supported barcodes contributing to replicate 2 activity.
activity_wt_rep3
WT RNA/DNA barcode enrichment for biological replicate 3; source activity includes the study pseudocount.
dna_barcodes_wt_rep3
Number of WT DNA-supported barcodes contributing to replicate 3 activity.
activity_tko_rep1
Dnmt triple-knockout RNA/DNA barcode enrichment for biological replicate 1; source activity includes the study pseudocount.
dna_barcodes_tko_rep1
Number of Dnmt triple-knockout DNA-supported barcodes contributing to replicate 1 activity.
activity_tko_rep2
Dnmt triple-knockout RNA/DNA barcode enrichment for biological replicate 2; source activity includes the study pseudocount.
dna_barcodes_tko_rep2
Number of Dnmt triple-knockout DNA-supported barcodes contributing to replicate 2 activity.
activity_tko_rep3
Dnmt triple-knockout RNA/DNA barcode enrichment for biological replicate 3; source activity includes the study pseudocount.
dna_barcodes_tko_rep3
Number of Dnmt triple-knockout DNA-supported barcodes contributing to replicate 3 activity.
relative_activity_wt_rep1
WT activity relative to the WT construct in replicate 1, as supplied by GEO.
relative_activity_wt_rep2
WT activity relative to the WT construct in replicate 2, as supplied by GEO.
relative_activity_wt_rep3
WT activity relative to the WT construct in replicate 3, as supplied by GEO.
relative_activity_tko_rep1
Dnmt triple-knockout activity relative to the WT construct in replicate 1, as supplied by GEO.
relative_activity_tko_rep2
Dnmt triple-knockout activity relative to the WT construct in replicate 2, as supplied by GEO.
relative_activity_tko_rep3
Dnmt triple-knockout activity relative to the WT construct in replicate 3, as supplied by GEO.
activity_geomean_wt
Geometric mean of non-missing WT activity enrichments across replicates.
log2_activity_wt
Mean log2-transformed WT activity enrichment across non-missing replicates.
mean_dna_barcodes_wt
Arithmetic mean of WT DNA-supported barcode counts across replicates.
qc_replicates_wt
WT replicates with activity and at least 3 DNA-supported barcodes; retained rows have at least 2.
relative_activity_geomean_wt
Geometric mean of WT relative activities across non-missing replicates.
log2_relative_activity_wt
Mean log2-transformed WT relative activity across non-missing replicates.
activity_geomean_tko
Geometric mean of non-missing Dnmt triple-knockout activity enrichments across replicates.
log2_activity_tko
Mean log2-transformed Dnmt triple-knockout activity enrichment across non-missing replicates.
mean_dna_barcodes_tko
Arithmetic mean of Dnmt triple-knockout DNA-supported barcode counts across replicates.
qc_replicates_tko
Dnmt triple-knockout replicates with activity and at least 3 DNA-supported barcodes; retained rows have at least 2.
relative_activity_geomean_tko
Geometric mean of Dnmt triple-knockout relative activities across non-missing replicates.
log2_relative_activity_tko
Mean log2-transformed Dnmt triple-knockout relative activity across non-missing replicates.
log2_activity_tko_minus_wt
Difference between TKO and WT mean log2 raw activity enrichments.
log2_relative_activity_tko_minus_wt
Difference between TKO and WT mean log2 relative activities.

Quality control

The paper retained uniquely assigned promoter barcodes (or assignments with second-most abundant sequence / most abundant sequence <0.3), required >20 normalized genomic-DNA reads per barcode, assigned absent RNA observations zero counts, and used alpha=0.05. For this packaged matched-genotype table, rows were retained only when activity and at least 3 DNA-supported barcodes were available in at least 2 of 3 biological replicates in both WT and TKO; 51 of 60 source rows passed.

Curation notes

Input: raw_data/GSE116704_HKGlib3_results.tab.gz; GEO reporter samples GSM3258688-GSM3258700. The source file contains 60 construct rows; 51 matched rows passed the per-genotype packaged QC. The TKO cells are CRISPR-engineered derivatives of TC-1 and do not have a separate Cellosaurus accession. Relative-activity columns are source-provided ratios to the WT construct.

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