Experiment / E1EEZQ2GRTargeted Genomic Integration MPRA

Wild-type housekeeping promoter and CMV control library

CG dinucleotides enhance promoter activity independent of DNA methylation

TrAC-seq measured transcriptional activity for 10 pooled promoter constructs comprising mouse housekeeping-gene promoters and a CMV control in wild-type TC-1 mouse embryonic stem cells. Constructs were integrated into the same beta-globin RMCE locus and quantified by RNA/DNA barcode enrichment.

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Perturbation & assay details

Basal / untreated; wild-type TC-1 mouse embryonic stem cells

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. The library contained a CpG-free eGFP spacer and a unique barcode.

Processed data

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

Visible columns (12 of 12)
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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 · 12 definitions
element_id
Unique promoter or control construct identifier from the GEO result table.
library
Source expression library name.
activity_rep1
RNA/DNA barcode enrichment for biological replicate 1; source activity includes the study pseudocount.
dna_barcodes_rep1
Number of DNA-supported barcodes contributing to replicate 1 activity.
activity_rep2
RNA/DNA barcode enrichment for biological replicate 2; source activity includes the study pseudocount.
dna_barcodes_rep2
Number of DNA-supported barcodes contributing to replicate 2 activity.
activity_rep3
RNA/DNA barcode enrichment for biological replicate 3; source activity includes the study pseudocount.
dna_barcodes_rep3
Number of DNA-supported barcodes contributing to replicate 3 activity.
activity_geomean
Geometric mean of the non-missing per-replicate activity enrichments.
log2_activity
Mean log2-transformed activity enrichment across non-missing replicates.
mean_dna_barcodes
Arithmetic mean of numeric DNA-supported barcode counts across replicates.
qc_replicates
Number of replicates with activity and at least 3 DNA-supported barcodes; retained rows have at least 2.

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 element table, rows were retained only when activity and at least 3 DNA-supported barcodes were available in at least 2 of 3 biological replicates; all 10 of 10 source rows passed.

Curation notes

Input: raw_data/GSE116704_HKGlib1_results.tab.gz; GEO reporter samples GSM3258674-GSM3258680. The source table is element-level summarized activity, not raw sequencing reads; no promoter nucleotide sequences were supplied in the public result table. Cellosaurus CVCL:M350 is the TC1 [Mouse ESC] line (TC-1 synonym).

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