Experiment / E65GVDQBHTrans-Factor Perturbation MPRA

MCF-7 RBP-knockdown MPRNA localization and expression

Context-specific effects of sequence elements on subcellular localization of linear and circular RNAs

MCF-7 cells were treated with siRNA pools targeting SRSF1, SAFB, IGF2BP1, or IGF2BP2, followed by transfection of the reporter libraries and nuclear/cytoplasmic fractionation. The table reports the authors' median control and knockdown localization/expression scores and knockdown-minus-control localization shifts for spliced, unspliced, and circular reporter contexts.

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

10 nM siRNA pool targeting SRSF1, SAFB, IGF2BP1, or IGF2BP2 versus non-targeting control

Cells were transfected with factor-specific siRNA pools, followed 48 h later by NucLibA/CircLibA reporter plasmids and a further 24 h before fractionation. Libraries were measured in total, nuclear, and cytoplasmic RNA. The source final table provides median log2 Nuc/Cyto and whole-cell-extract/plasmid-input values across biological replicates, factor-KD minus non-targeting localization changes, predicted motif counts, and ENCODE eCLIP annotations.

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 · 67 definitions
element_id
Unique tested tile identifier from the source finalTab row name.
library
Source library label: nucLib for NucLibA or circLib for CircLibA.
library_index
Numeric tile index supplied by the source table.
segment_name
Author-provided segment name for the tested tile.
gene_name
Source gene or noncoding-RNA name from which the tile was derived.
sequence
Nucleotide sequence of the tested tile.
sequence_length
Length of the tested sequence in nucleotides, calculated from sequence.
gc_percent
GC content of the tile in percent, as supplied by the authors.
delta_g_kcal_mol
RNAfold-predicted minimum free energy (DeltaG) in kcal/mol, as supplied by the authors.
srsf1_motif_count
Number of occurrences of the source SRSF1 motif (CTGGA) in the tile.
safb_motif_count
Number of occurrences of the source SAFB motif (GAAAA) in the tile.
igf2bp1_motif_count
Number of occurrences of the source IGF2BP1 motif (CCACC) in the tile.
igf2bp2_motif_count
Number of occurrences of the source IGF2BP2 motif (CCACC) in the tile.
srsf1_eclip_encff708ipl
Per-tile SRSF1 eCLIP annotation/count for ENCODE file ENCFF708IPL, as supplied by the authors.
srsf1_eclip_encff282dbv
Per-tile SRSF1 eCLIP annotation/count for ENCODE file ENCFF282DBV, as supplied by the authors.
srsf1_eclip_encff759ogt
Per-tile SRSF1 eCLIP annotation/count for ENCODE file ENCFF759OGT, as supplied by the authors.
srsf1_eclip_encff135sku
Per-tile SRSF1 eCLIP annotation/count for ENCODE file ENCFF135SKU, as supplied by the authors.
safb_eclip_encff432svt
Per-tile SAFB eCLIP annotation/count for ENCODE file ENCFF432SVT, as supplied by the authors.
safb_eclip_encff024xio
Per-tile SAFB eCLIP annotation/count for ENCODE file ENCFF024XIO, as supplied by the authors.
igf2bp1_eclip_encff068fva
Per-tile IGF2BP1 eCLIP annotation/count for ENCODE file ENCFF068FVA, as supplied by the authors.
igf2bp1_eclip_encff047wlr
Per-tile IGF2BP1 eCLIP annotation/count for ENCODE file ENCFF047WLR, as supplied by the authors.
igf2bp1_eclip_encff228pak
Per-tile IGF2BP1 eCLIP annotation/count for ENCODE file ENCFF228PAK, as supplied by the authors.
igf2bp1_eclip_encff324ispliced
Per-tile IGF2BP1 eCLIP annotation/count for the source ENCFF324ISpliced annotation.
igf2bp2_eclip_encff205trw
Per-tile IGF2BP2 eCLIP annotation/count for ENCODE file ENCFF205TRW, as supplied by the authors.
igf2bp2_eclip_encff922znq
Per-tile IGF2BP2 eCLIP annotation/count for ENCODE file ENCFF922ZNQ, as supplied by the authors.
nt_spliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across non-targeting-control replicates in the spliced context.
srsf1_spliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across SRSF1-knockdown replicates in the spliced context.
safb_spliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across SAFB-knockdown replicates in the spliced context.
igf2bp1_spliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across IGF2BP1-knockdown replicates in the spliced context.
igf2bp2_spliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across IGF2BP2-knockdown replicates in the spliced context.
nt_unspliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across non-targeting-control replicates in the unspliced context.
srsf1_unspliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across SRSF1-knockdown replicates in the unspliced context.
safb_unspliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across SAFB-knockdown replicates in the unspliced context.
igf2bp1_unspliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across IGF2BP1-knockdown replicates in the unspliced context.
igf2bp2_unspliced_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across IGF2BP2-knockdown replicates in the unspliced context.
nt_circular_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across non-targeting-control replicates in the circular context.
srsf1_circular_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across SRSF1-knockdown replicates in the circular context.
safb_circular_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across SAFB-knockdown replicates in the circular context.
igf2bp1_circular_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across IGF2BP1-knockdown replicates in the circular context.
igf2bp2_circular_nuc_cyto_log2_median
Median log2 Nuc/Cyto ratio across IGF2BP2-knockdown replicates in the circular context.
srsf1_minus_nt_spliced_nuc_cyto_log2
Author-reported median SRSF1-knockdown minus non-targeting change in log2 Nuc/Cyto for spliced reporters.
safb_minus_nt_spliced_nuc_cyto_log2
Author-reported median SAFB-knockdown minus non-targeting change in log2 Nuc/Cyto for spliced reporters.
igf2bp1_minus_nt_spliced_nuc_cyto_log2
Author-reported median IGF2BP1-knockdown minus non-targeting change in log2 Nuc/Cyto for spliced reporters.
igf2bp2_minus_nt_spliced_nuc_cyto_log2
Author-reported median IGF2BP2-knockdown minus non-targeting change in log2 Nuc/Cyto for spliced reporters.
srsf1_minus_nt_unspliced_nuc_cyto_log2
Author-reported median SRSF1-knockdown minus non-targeting change in log2 Nuc/Cyto for unspliced reporters.
safb_minus_nt_unspliced_nuc_cyto_log2
Author-reported median SAFB-knockdown minus non-targeting change in log2 Nuc/Cyto for unspliced reporters.
igf2bp1_minus_nt_unspliced_nuc_cyto_log2
Author-reported median IGF2BP1-knockdown minus non-targeting change in log2 Nuc/Cyto for unspliced reporters.
igf2bp2_minus_nt_unspliced_nuc_cyto_log2
Author-reported median IGF2BP2-knockdown minus non-targeting change in log2 Nuc/Cyto for unspliced reporters.
srsf1_minus_nt_circular_nuc_cyto_log2
Author-reported median SRSF1-knockdown minus non-targeting change in log2 Nuc/Cyto for circular reporters.
safb_minus_nt_circular_nuc_cyto_log2
Author-reported median SAFB-knockdown minus non-targeting change in log2 Nuc/Cyto for circular reporters.
igf2bp1_minus_nt_circular_nuc_cyto_log2
Author-reported median IGF2BP1-knockdown minus non-targeting change in log2 Nuc/Cyto for circular reporters.
igf2bp2_minus_nt_circular_nuc_cyto_log2
Author-reported median IGF2BP2-knockdown minus non-targeting change in log2 Nuc/Cyto for circular reporters.
expression_nt_spliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for non-targeting control in the spliced context.
expression_srsf1_spliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for SRSF1 knockdown in the spliced context.
expression_safb_spliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for SAFB knockdown in the spliced context.
expression_igf2bp1_spliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for IGF2BP1 knockdown in the spliced context.
expression_igf2bp2_spliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for IGF2BP2 knockdown in the spliced context.
expression_nt_unspliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for non-targeting control in the unspliced context.
expression_srsf1_unspliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for SRSF1 knockdown in the unspliced context.
expression_safb_unspliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for SAFB knockdown in the unspliced context.
expression_igf2bp1_unspliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for IGF2BP1 knockdown in the unspliced context.
expression_igf2bp2_unspliced_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for IGF2BP2 knockdown in the unspliced context.
expression_nt_circular_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for non-targeting control in the circular context.
expression_srsf1_circular_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for SRSF1 knockdown in the circular context.
expression_safb_circular_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for SAFB knockdown in the circular context.
expression_igf2bp1_circular_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for IGF2BP1 knockdown in the circular context.
expression_igf2bp2_circular_log2_wce_plasmid_median
Median log2 WCE/plasmid-input expression ratio for IGF2BP2 knockdown in the circular context.

Quality control

The authors used the same adapter/UMI-aware read matching and minimum 20-read fragment filter described for the main MPRNA. For this package, rows were required to have an official nucLib or circLib label, a nonempty sequence, and at least one source control/KD median, KD-minus-control localization shift, or KD expression median. This retained 5,132 rows from the 8,162-row source final table; rows lacking any RBP-perturbation result were excluded. No additional biological effect-size threshold was imposed.

Curation notes

This table is a cleaned projection of the authors' Supplementary Data 3 finalTab_230221. The source provides condition medians and localization shifts rather than replicate-level barcode counts or adjusted P-values for the KD MPRA; blanks identify factor/context combinations without a source estimate and are not zeros. Motif and eCLIP annotations are retained to support interpretation of the perturbation results. The library contains orthologous noncoding-RNA tiles as well as human tiles, so no single reference genome is assigned.

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