Experiment / E6QA6P3DSEpisomal Plasmid MPRA

dpSTR deep-perturbation MPRA in HeLa S3 RNase H1 wild-type cells

Systematic evaluation of the impact of promoter proximal short tandem repeats on expression

Deep-perturbation dpSTR library assayed in HeLa S3 cells under the RNase H1 wild-type/control condition.

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

RNase H1 wild-type / control

The same 230-nt random-barcode pGL4.23-derived minimal-promoter GFP reporter and three-replicate RNA/DNA readout were used in HeLa S3 cells; the comparator condition is the parental RNase H1 wild-type state.

Processed data

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

Visible columns (52 of 52)
Row
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

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

Column dictionary · 52 definitions
variant_id
Deposited STR variant/allele identifier used in the GEO ratio file.
locus_id
Numeric Human_STR identifier for the underlying promoter-proximal STR locus.
regression_group
Locus-level regression group from the deposited regression table; hSTR is locus|motif and dpSTR is the source locus string including original/current motif and orientation code.
original_repeat_unit
Reference/original repeat unit represented in the source design; for dpSTR this is the source orientation used in the regression group.
tested_repeat_unit
Repeat unit or sequence category tested in the reporter variant.
variant_category
hSTR allele label (m5, ref, p3, or p5) or dpSTR current perturbation category (for example original, ref, a repeat motif, random, or randomMatchedGC).
perturbation_type
Interpretation of the dpSTR category: hSTR internal control, perfect repeat unit, alternate repeat unit, random sequence, or GC-matched random sequence; blank for hSTR.
orientation_code
Source dpSTR orientation code (0 or 1); both orientations were designed, and the code is retained without imposing a genomic-strand interpretation. Blank for hSTR.
copy_number_delta
hSTR requested copy-number change relative to the hg38 reference encoded by the allele label; blank for dpSTR.
repeat_copy_number
dpSTR designed repeat copy number encoded by the pN suffix; blank for hSTR because its m/p labels are relative and the smallest allele can be censored at zero.
reference_repeat_copies
hSTR reference repeat count nrep_ref from the author design table; blank for dpSTR.
reference_repeat_unit_bed
Reference motif from the dpSTR BED annotation; it may be the reverse complement of the sequence-normalized original_repeat_unit. Blank for hSTR.
str_chrom
Chromosome of the STR locus from the author annotation.
str_start_source
STR interval start as reported by the retained author annotation (BED-like source coordinate for dpSTR).
str_end_source
STR interval end as reported by the retained author annotation.
tss_chrom
Chromosome of the associated transcription start site from the hSTR TSS/STR annotation; blank for dpSTR.
tss_start_source
TSS start as reported by the hSTR TSS/STR annotation; blank for dpSTR.
tss_end_source
TSS end as reported by the hSTR TSS/STR annotation; blank for dpSTR.
gene_id
Associated Ensembl gene identifier(s) from the hSTR TSS/STR annotation, semicolon-separated when multiple; blank for dpSTR.
gene_strand
Associated gene strand from the hSTR TSS/STR annotation; blank for dpSTR.
n_barcodes_raw
Number of source barcode rows observed for the variant across all three replicates before dpSTR outlier trimming.
n_barcodes_qc
Number of unique barcode observations retained after the experiment-specific QC trimming.
cdna_reads_qc
Total retained cDNA/RNA barcode reads across replicates.
gdna_reads_qc
Total retained plasmid-DNA barcode reads across replicates.
rna_dna_ratio_pooled
Pooled activity score calculated as total retained cDNA reads divided by total retained gDNA reads.
log2_rna_dna_ratio_pooled
Base-2 logarithm of the pooled RNA/DNA activity score.
mean_replicate_ratio
Arithmetic mean of the three replicate-level RNA/DNA ratios available for the variant.
sd_replicate_ratio
Sample standard deviation of the available replicate-level RNA/DNA ratios.
n_replicates
Number of replicates with retained data for the variant.
n_barcodes_raw_rep1
Source barcode-row count for replicate 1 before dpSTR outlier trimming.
n_barcodes_qc_rep1
Unique barcode count retained for replicate 1.
cdna_reads_qc_rep1
Retained cDNA/RNA reads for replicate 1.
gdna_reads_qc_rep1
Retained plasmid-DNA reads for replicate 1.
rna_dna_ratio_rep1
Retained cDNA/gDNA ratio for replicate 1, calculated from summed reads.
n_barcodes_raw_rep2
Source barcode-row count for replicate 2 before dpSTR outlier trimming.
n_barcodes_qc_rep2
Unique barcode count retained for replicate 2.
cdna_reads_qc_rep2
Retained cDNA/RNA reads for replicate 2.
gdna_reads_qc_rep2
Retained plasmid-DNA reads for replicate 2.
rna_dna_ratio_rep2
Retained cDNA/gDNA ratio for replicate 2, calculated from summed reads.
n_barcodes_raw_rep3
Source barcode-row count for replicate 3 before dpSTR outlier trimming.
n_barcodes_qc_rep3
Unique barcode count retained for replicate 3.
cdna_reads_qc_rep3
Retained cDNA/RNA reads for replicate 3.
gdna_reads_qc_rep3
Retained plasmid-DNA reads for replicate 3.
rna_dna_ratio_rep3
Retained cDNA/gDNA ratio for replicate 3, calculated from summed reads.
regression_r
Pearson correlation coefficient from the author-supplied locus-level regression output.
regression_beta_0
Intercept (beta_0) from the author-supplied RNA/DNA ratio regression.
regression_beta_1
Copy-number slope (beta_1) from the author-supplied regression; it is repeated on each variant row in the same regression group.
regression_p_value
Author-supplied p_value_1 for the copy-number slope.
regression_padj
Author-supplied multiple-testing-adjusted p-value when deposited (hSTR); blank because the dpSTR regression files do not provide this field.
computed_bh_p_value
Benjamini–Hochberg adjustment computed during ingestion over the supplied regression p_value_1 values for this experiment; included separately from the author-supplied field.
qc_pass
Always true in this filtered table; indicates that the row passed the documented barcode/read and regression-group minimums.
oligo_sequence
Full synthesized oligo sequence from the retained author design reference when an exact design record could be matched; blank for a small number of dpSTR variants absent from the current GitHub FASTA.

Quality control

Quality-control details were not reported in the metadata.

Curation notes

The processed table contains 48,001 retained variant rows across 4,901 locus/motif/orientation regression groups. Eighty-three retained rows had no exact match in the current author GitHub FASTA and therefore have a blank oligo_sequence. CVCL:0058 is the parent HeLa S3 accession; the wild-type and CRISPRi derivatives were not assigned separate Cellosaurus accessions.

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.