Experiment / E9NM8NU9BEpisomal Plasmid MPRA

5′ MPRA multi-size sub-tiling v2 in PYS-2 cells

Multi-scale dissection, compaction and derivatization of mammalian developmental enhancers

A dense library of 40, 70, 120, 170, 220, 270, and 300 bp tiles at 5 bp stride, in original and reverse-complement orientations, was assayed in PYS-2 cells.

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

5′ episomal plasmid MPRA using the p001-PB-MPRA/minP reporter with a degenerate barcode in the reporter 5′ UTR; RNA and DNA barcode UMIs were sequenced separately and activity was quantified as a normalized 1% Winsorized RNA/DNA ratio. This library was co-transfected with the saturation-mutagenesis library.

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 · 27 definitions
element_id
Unique tile/control identifier.
parent_cre
Original developmental CRE.
source_class
Activity-table class.
sequence
Tested tile sequence when available.
sequence_length
Sequence length in bp.
chromosome
mm39 chromosome.
start
0-based mm39 start.
end
0-based mm39 end.
genomic_strand
Sequence strand.
orientation
Original or reverse-complement orientation.
twist_library_id
Synthesis/library identifier.
tile_size_bp
Tile size in bp.
tile_shift_bp
Tile shift in bp.
activity_mean
Mean normalized RNA/DNA activity across retained replicates.
activity_sd
Sample SD.
replicate_ids
Retained replicate labels.
n_replicates
Number of retained replicates.
n_BC_min
Minimum barcode support.
n_BC_sum
Sum of barcode supports.
log2_activity_vs_minP
Mean log2 activity relative to minP.
activity_rep1a
Processed multi-size sub-tiling MPRA field.
activity_rep1b
Processed multi-size sub-tiling MPRA field.
activity_rep2a
Processed multi-size sub-tiling MPRA field.
activity_rep2b
Processed multi-size sub-tiling MPRA field.
activity_rep3a
Processed multi-size sub-tiling MPRA field.
activity_rep3b
Processed multi-size sub-tiling MPRA field.
qc_pass
1 for constructs passing package QC.

Quality control

Author-processed activity tables already applied the DNA-UMI >=2 barcode filter and 1% Winsorization. Package QC retained finite non-negative activity entries with >=5 barcodes per replicate and >=3 QC-passing biological replicates per construct; mean and SD are across retained replicates. Final table contains 11366 constructs.

Curation notes

PYS-2 is ATCC CRL-2745 / Cellosaurus CVCL_3776. v2 and saturation mutagenesis were co-transfected but are separate child experiments because their designs differ.

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.