Experiment / E1UNBX009Silencer / Repressor MPRA

Noncanonical REST motif spacing MPRA in K562

Whole-genome functional characterization of RE1 silencers using a modified massively parallel reporter assay

A modified MPRAduo library tested native, swapped, scrambled, and spacer-edited noncanonical REST half-site arrangements in K562, with positive and negative controls. The assay measured reporter activity across the deposited analysis-level result set.

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 MPRAduo tested noncanonical REST-binding-site constructs with precise half-site orientations and spacer lengths, including wild-type and spacer-scrambled/edited sequences, paired with En02. Four biological replicates were analyzed; the deposited result table reports control/experimental means, effect sizes, test statistics, and FDR-adjusted p-values.

Processed data

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

Visible columns (22 of 22)
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 · 22 definitions
element_id
Unique source construct identifier, including enhancer and noncanonical silencer/control name.
enhancer_id
Benchmark activating element paired with the motif construct.
silencer_id
Noncanonical REST motif, spacer-edit, or control construct identifier.
variant_id
Source variant identifier when available; blank for this motif-edit library.
chromosome
Source chromosome field; blank when not reported for the motif construct.
position
Source position field; blank when not reported for the motif construct.
ref_allele
Source reference allele field; blank when not applicable.
alt_allele
Source alternate allele field; blank when not applicable.
tested_allele
Source allele label; blank when not applicable.
orientation
Source strand/orientation field; blank when not reported.
variant_window
Source motif-window field; blank when not applicable.
project
Construct class, including positive_controls, negative_controls, ND, cano_WT, nonc_WT, swapped, or spacer-scrambled variants.
haplotype
Source haplotype annotation, when available.
start
Source start coordinate or interval field, when available.
stop
Source stop coordinate or interval field, when available.
control_mean
Deposited analysis-level mean expression for the control/reference condition.
experimental_mean
Deposited analysis-level mean expression for the tested condition.
log2_fold_change
Deposited log2 reporter activity estimate.
log2_fold_change_se
Standard error of the deposited log2 reporter activity estimate.
test_statistic
Deposited statistical test statistic.
p_value
Deposited nominal p-value.
adjusted_p_value
Deposited multiple-testing-adjusted p-value.

Quality control

The deposited noncanonical result file is an analysis-level output and does not expose barcode-support or plasmid-DNA count columns. This package retained the 4,509 of 4,975 rows with complete log2 fold-change, standard error, test statistic, p-value, and adjusted p-value; incomplete result rows were excluded.

Curation notes

GEO series sample GSM6528576 is the noncanonical K562 RNA sample, while the separate series-level result file is the only deposited analysis table for this library. The table retains positive/negative controls and all construct classes with complete effect statistics; count-level QC cannot be independently reproduced from the available noncanonical file.

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.