Experiment / E7YNIGVCNTransposon-integrated MPRA

Tornado circular versus linear Pol III barcode bulk MPRA

Multiplex profiling of developmental cis-regulatory elements with quantitative single-cell expression reporters

Circular U6-Tornado barcodes and truncated linear barcodes were integrated into K562 cells with piggyBac and compared by bulk RNA/DNA barcode counting. The table provides per-barcode normalized activity for the two barcode architectures in duplicate biological replicates.

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

The p053 U6-Tornado library produces circular oBC RNA and p054 produces a matched truncated linear barcode RNA. Both libraries were piggyBac-integrated into K562 cells; barcode UMI counts from genomic DNA and RNA were used for steady-state expression/activity.

Processed data

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

Visible columns (14 of 14)
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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 · 14 definitions
barcode_id
Unique Pol III barcode identifier.
barcode_sequence
Barcode nucleotide sequence.
barcode_type
Circular Tornado oBC or linear barcode class.
plasmid_origin
Originating plasmid/library annotation joined from the barcode list.
biological_replicate
K562 biological replicate identifier.
dna_umi
Genomic-DNA UMI count for the barcode.
rna_umi
RNA UMI count for the barcode.
dna_reads
Genomic-DNA sequencing read count.
rna_reads
RNA sequencing read count.
dna_umi_normalized
DNA UMI count divided by total DNA UMI count for the replicate and barcode type.
rna_umi_normalized
RNA UMI count divided by total RNA UMI count for the replicate and barcode type.
activity_rna_over_dna
Normalized RNA/DNA barcode activity.
qc_pass
TRUE for barcodes passing the paper-derived >50 DNA UMI filter.
source_table
GEO source table used to create the row.

Quality control

The paper defined valid plasmid-library barcodes using high-count modes (>9 UMIs for p053 and >5 UMIs for p054), removed 34 barcode sequences shared between the two libraries, and retained expression barcodes represented by more than 50 DNA UMIs. The processed table applies the >50 DNA UMI filter and requires finite sample normalization denominators.

Curation notes

The GEO count table does not carry a cell-line column; K562 is taken from the paper's Pol III methods section. The barcode list, count matrix and plasmid maps are retained in raw_data.

Cite OpenMPRA

Cite the OpenMPRA database. Include your access date because the collection changes over time.

Please also cite the source studies when using their data.