Experiment / E9Q43X9OX3' UTR / RNA Stability MPRA (MPRAu)

CXCL2 proximal 3′-UTR all-single-nucleotide-substitution fast-UTR library

Massively parallel functional annotation of 3′ untranslated regions

A 67-nt CXCL2 3′-UTR segment containing ARE1 and flanking sequence was tested with all 201 possible single-nucleotide substitutions in BEAS-2B-tTA cells. Reporter steady-state mRNA effects were reported as variant-versus-reference delta mRNA from pooled RNA/DNA clone measurements.

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 BTV reporter is a bidirectional tetracycline-regulated viral reporter delivered by lentivirus. Oligonucleotide-pool clones were indexed and analyzed by paired-end Illumina sequencing of reporter RNA/cDNA and genomic DNA; the table uses the paper’s published WIG effect and significance tracks.

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 · 16 definitions
variant_id
Stable variant identifier composed of CXCL2, coordinate, and RNA reference/alternate bases.
gene
Tested gene, CXCL2.
chromosome
Chromosome containing the tested sequence.
genomic_coordinate_1based
1-based hg19 genomic coordinate of the substituted base.
reference_genome
Assembly used for genomic coordinates.
strand
Genomic strand of CXCL2; negative strand.
reference_genomic_base
Reference hg19 base on the genomic plus-strand representation.
alternate_genomic_base
Genomic complement of the tested RNA alternate base.
reference_rna_base
Reference base in the reporter/RNA orientation.
alternate_rna_base
Tested alternate base in the reporter/RNA orientation.
rna_substitution
Reference→alternate substitution in RNA orientation.
delta_mrna
Published difference in steady-state reporter mRNA between variant and reference, expressed as a fraction (e.g. 0.74 = 74%).
neg_log10_p
Published −log10 p-value for the variant-versus-reference delta mRNA comparison.
p_value
p-value reconstructed as 10^(−neg_log10_p).
known_population_snp
dbSNP identifier for the population SNPs listed in Supplementary Table 1; blank otherwise.
reported_population_substitution
Substitution notation printed in Supplementary Table 1; blank for unlisted substitutions.

Quality control

The authors removed clone indexes with mean <10 reads and excluded segments represented by fewer than 10 clones. The published WIG tracks are downstream of those filters; the processed table retains all 201 finite non-reference substitutions. Reference RNA alleles were checked against the UCSC hg19 sequence and the negative-strand orientation.

Curation notes

The original WIG contains RNA>A/C/G/U tracks; entries where the alternate matched the reference were excluded, leaving the 201 possible substitutions. The paper prints T in its population-SNP table while the fast-UTR tracks use U, so the processed RNA-oriented fields use U and retain the printed notation separately. Raw read counts are not supplied by the paper.

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