Experiment / E7FQW1RZSWhole-Genome STARR-seq (WHG-STARR-seq)

Genome-wide OSC STARR-seq enhancer activity across three Drosophila species

Quantitative genome-wide enhancer activity maps for five Drosophila species show functional enhancer conservation and turnover during cis-regulatory evolution

Genomic DNA from D. melanogaster, D. yakuba, and D. ananassae was screened in D. melanogaster ovarian somatic cells (OSCs), a common trans-regulatory environment. The table contains the study's combined two-biological-replicate enhancer peak calls after translation to dm3-compatible coordinates.

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

Episomal self-transcribing enhancer assay using randomly sheared genomic fragments cloned downstream of a minimal promoter. Paired-end STARR-seq cDNA and input reads were mapped to each source-species assembly, PCR/redundancy-filtered, and species-specific fragments were lifted to the dm3 coordinate system; enhancer activity is reported as cDNA/input enrichment at the peak summit.

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 row identifier derived from cell type, species code, and source peak rank.
cell_type
STARR-seq assay context; OSC for ovarian somatic cells.
species
Drosophila species from which the genomic DNA/library fragments were sourced.
species_code
Study shorthand for the source species (Dmel, Dyak, or Dana).
reference_genome
Common coordinate system used for the table after species-specific fragments were lifted to dm3.
chromosome
Chromosome name in the dm3-compatible coordinate system.
summit_position
STARR-seq peak summit coordinate reported by the source peak file.
enrichment_over_input
Fold enrichment of STARR-seq cDNA fragment density over input at the peak summit.
p_value
Peak-call P value reported by the study.
peak_call_set
Peak call generated from the combined biological replicates.
source_peak_file
Path of the source combined peak file within Supplementary_Data_Set_1.zip.
source_peak_rank
1-based row order of the peak in its source combined peak file.

Quality control

The study trimmed paired-end reads to 36 bp, mapped them with Bowtie to the relevant species assembly, collapsed PCR duplicates by identical fragment coordinates/strand, applied an additional redundancy filter for clustered sequence artifacts, and retained uniquely liftable fragments whose lifted length was 10–200% of the original. Peaks were called at enrichment >=3-fold over input and P <=0.001 (reported FDR <0.1%); two independent biological replicates were assessed for reproducibility. The processed table retains only rows from the combined peak-call files meeting those study thresholds; no source peak rows were removed.

Curation notes

OSCs are a D. melanogaster ovarian-derived immortalized line (Cellosaurus CVCL:IY73). The downloadable combined files contain 3,341 Dmel, 3,233 Dyak, and 2,859 Dana rows; the paper's Supplementary Table 1 reports 3,342, 3,233, and 2,859, respectively. The table preserves the downloadable file contents and uses the reported dm3-compatible coordinates. The accompanying RNA-seq follicle-cell data are not included in this MPRA table because they are an orthogonal validation readout.

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