CLASH Logo

1. What CLASH data is currently available in CLASHub?

CLASHub hosts data from four species: Human, Mouse, Drosophila melanogaster, and Caenorhabditis elegans. Below is the summary of available datasets:

Human

Sample Name wild type (#) Non-targeting sgRNA Control (#) ZSWIM8 Knockout (#) BioProject Number SRR Number
A549 6 6 PRJNA1166120 SRR34738798, SRR34738799, SRR34738800, SRR34738801, SRR34738802, SRR34738803, SRR34738804, SRR34738805, SRR34738790, SRR34738791, SRR34738792, SRR34738793
Colorectal 2 PRJNA1166120 SRR37216684, SRR37216685
D425 3 PRJNA1166120 SRR34757946, SRR34757949, SRR34757950
ES2 3 3 PRJNA1166120 SRR34757940, SRR34757941, SRR34757942, SRR34757943, SRR34757944, SRR34757945
HCT116 5 3 GSE164634, PRJNA1166120 SRR13415087, SRR13415088, SRR13415089, SRR13415090, SRR13415091, SRR34757939, SRR34757947, SRR34757948
HEK293T 8 GSE198250, PRJNA1166120 SRR18281055, SRR18281057, SRR18281067, SRR18281068, SRR34761041, SRR34761042, SRR34761043, SRR34761044
HepG2 3 PRJNA1166120 SRR34783077, SRR34783079, SRR34783080
H1299 3 3 PRJNA1166120 SRR34768260, SRR34768261, SRR34768262, SRR34768263, SRR34768274, SRR34768275
MB002 4 4 PRJNA1166120 SRR34783070, SRR34783071, SRR34783072, SRR34783073, SRR34783074, SRR34783075, SRR34783076, SRR34783078
MDA-MB-231 6 6 PRJNA1166120 SRR30817646, SRR30817647, SRR30817648, SRR30817649, SRR30817650, SRR30817651, SRR34738794, SRR34738795, SRR34738796, SRR34738797, SRR34738806, SRR34738807
OVCAR8 3 3 PRJNA1166120 SRR34768264, SRR34768265, SRR34768266, SRR34768267, SRR34768276, SRR34768277
TIVE-EX-LTC 3 GSE101978 SRR5876947, SRR5876948, SRR5876949
T98G 3 3 PRJNA1166120 SRR34743309, SRR34743310, SRR34743311, SRR34743312, SRR34743317, SRR34743318
U87MG 3 3 PRJNA1166120 SRR34743313, SRR34743314, SRR34743315, SRR34743316, SRR34743319, SRR34743320
501Mel 3 3 PRJNA1166120 SRR34768268, SRR34768269, SRR34768270, SRR34768271, SRR34768272, SRR34768273

Mouse

All mouse sources searches the reviewed CLASH V2 datasets below at request time. Evidence remains source-labelled, and Direct chimeras remain separate from AGO peak-supported candidates. The two kidney studies are independent experiments and are not pooled.

Reviewed CLASH V2 source datasets
Dataset AGO antibody / experimental method Groups represented in the database Public accession Positive-library SRRs
Cortex pan-AGO 2A8 CLEAR-CLIP 20 reviewed analysis units GSE73058 SRR2413277–SRR2413302, excluding SRR2413280, SRR2413281, SRR2413283, and SRR2413286
Skeletal muscle AGO2 chimeric eCLIP AGO2-IP skeletal-muscle libraries GSE173821 SRR14416844, SRR14416845, SRR14416850, SRR14416851
Liver — Total and probe-enriched AGO2 NoGel chimeric eCLIP Total liver, let-7-enriched, and miR-122-enriched GSE198250 SRR18280918–SRR18280926
Thymocytes — Wild type vs miR-181 knockout AGO2 miR-eCLIP AGO2-IP and miR-181-enriched, each WT vs miR-181 knockout GSE241905 SRR25792439–SRR25792444 and SRR25792451–SRR25792456
CD4+ T cells — Wild type vs miR-155 knockout AGO2 HITS-CLIP Wild type and miR-155 knockout, 12 biological replicates per genotype GSE41285 SRR578782–SRR578805
Embryonic stem cells — Wild type AGO2 HITS-CLIP Two biological replicates; WT1A and WT1B are merged technical replicates, and WT2 is the second biological replicate GSE25310 SRR072951, SRR072952, SRR072953
Bone marrow-derived macrophages — Wild type vs APOBEC1 knockout AGO HITS-CLIP Wild type and APOBEC1 knockout, three biological replicates per genotype GSE58798 SRR1460498–SRR1460503
Primary keratinocytes — Wild type AGO2 HITS-CLIP Four biological replicates GSE66054 SRR1810469–SRR1810472
Embryonic stem cells — FLAG-HA-tagged AGO2 AGO2 iCLIP One tagged AGO2 positive library GSE61347 SRR1573590
Bone marrow-derived macrophages — Wild type vs ELAVL1 knockout AGO2 PAR-CLIP One pooled wild-type library and one pooled ELAVL1-knockout library, summarized separately GSE63199 SRR1648881, SRR1648882
P19 cells AGO2 HITS-CLIP Three biological replicates GSE85219 SRR4000655–SRR4000657
Liver — Wild type vs miR-122 knockout AGO HITS-CLIP Five wild-type/floxed controls and four miR-122-knockout biological replicates, summarized separately GSE97058 SRR5379106–SRR5379114
Embryonic stem cells / C2C12 differentiated myocytes — Cytoplasm and nucleus AGO PAR-CLIP Four cell/fraction groups, one library each. ESC: inducible tagged AGO2; C2C12: pan-AGO affinity purification. Sarshad et al., Molecular Cell (2018) GSE108795 SRR6442803–SRR6442806
B cells / dendritic cells / macrophages / CD4+ T cells — Wild type vs miR-155 knockout AGO2 iCLIP Eight cell-type/genotype groups, four biological replicates per group, summarized separately. Hsin et al., Nature Immunology (2018) GSE116466 SRR7457034–SRR7457065
Abelson-transformed B-cell progenitors — WT vs Bim 3′UTR mutant AGO2 PAR-CLIP Two biological replicates per genotype, summarized separately. Standard-reference reanalysis; engineered-site differences require mutation-aware interpretation. Labi et al., Genes & Development (2019) GSE124605 SRR8388921–SRR8388924
P0 whole brain — WT vs FMR1 knockout AGO2 eCLIP One AGO2-IP library per genotype; Input controls are QC-only. Standard-reference reanalysis does not reproduce the original IP-versus-Input enrichment test. GSE129885 IP: SRR8908950–SRR8908951; Input: SRR8908952–SRR8908953
Kidney — Control vs cisplatin AGO2 chimeric eCLIP Control and cisplatin-treated kidney GSE242806 SRR25994653–SRR25994664
Kidney — Wild type pan-AGO 4F9 chimeric eCLIP Two WT kidney biological replicates PRJNA1166120 SRR34793105, SRR34793106
Pineal tumor — IPRb1 cells AGO2 miR-eCLIP Two AGO2-IP biological replicates GSE255909 SRR27985089, SRR27985088
Lung — Six-day bleomycin treatment AGO2-eCLIP Two AGO2-IP biological replicates GSE287950 SRR32112150, SRR32112147
Additional mouse datasets
Sample Name wild type (#) Non-targeting sgRNA Control (#) Zswim8 Knockout (#) BioProject Number SRR Number
HE2.1B 6 GSE124687 SRR8395242, SRR8395243, SRR8395244, SRR8395245, SRR8395246, SRR8395247
MEF 2 2 PRJNA1166120 SRR34793109, SRR34793110, SRR34793111, SRR34793112
Striatal cell 4 4 PRJNA1093144 SRR28497185, SRR28497186, SRR28497189, SRR28497190, SRR2849718, 6SRR28497197, SRR28497198, SRR28497199, SRR28497200
3T12 3 GSE124687 SRR8395248, SRR8395249, SRR8395250
Cortex (pan-AGO 2A8 CLEAR-CLIP) 20 reviewed analysis units GSE73058 SRR2413277–SRR2413302, excluding SRR2413280, SRR2413281, SRR2413283, and SRR2413286
Heart (pan-AGO 4F9 chimeric eCLIP) 2 PRJNA1166120 SRR34793107, SRR34793108
Kidney — Wild type (pan-AGO 4F9 chimeric eCLIP) 2 PRJNA1166120 SRR34793105, SRR34793106

Drosophila melanogaster

Sample Name wild type (#) Non-targeting sgRNA Control (#) Dora Knockout (#) BioProject Number SRR Number
S2 cells 3 3 PRJNA896239 SRR22129325, SRR22129327, SRR22129328, SRR22129284, SRR22129287, SRR22129298

Caenorhabditis elegans

The All C. elegans sources option searches the three current datasets below at request time. It counts source-level Direct and AGO support without averaging CPM or replicate support across studies.

Dataset Included biological groups Excluded study/QC data Public accession Included sequencing data
Mixed embryos (ALG-2 chimeric eCLIP) Tagged wild type (n = 4); ebax-1(null) (n = 4) Untagged wild-type negative controls (n = 2) GSE303817 / PRJNA1297724 Eight tagged biological samples; two A/B sequencing runs merged within each replicate
L3 whole worms (ALG-1 iPAR-CLIP) Standard iPAR-CLIP (n = 2); ligation-enhanced iPAR-CLIP (n = 2) SRR1207391 archived duplicate; no-ligase controls SRR1207392 and SRR1207395 GSE56180 / PRJNA242650 / SRP040587 SRR1207389, SRR1207393, SRR1207390, SRR1207394
Mid-L4 N2 whole worms (ALG-1 iCLIP) N2 biological replicates (n = 5) None from the reviewed biological-replicate set PRJNA328816 / SRP078361 SRR3882724, SRR3882728, SRR3882949, SRR3882950, SRR3882951

2. What Gene Expression Profile data is available in CLASHub?

Gene Expression Profile from four species: Human, Mouse, Drosophila melanogaster, and Caenorhabditis elegans. Below is the summary of available datasets:

Human

Sample Name wild type (#) Non-targeting sgRNA Control (#) ZSWIM8 Knockout (#) BioProject Number SRR Number
A5497 GSE263036, GSE212057, GSE199309 SRR28535493, SRR28535494, SRR28535495, SRR21237863, SRR21237869, SRR21237879, SRR18462418
D4255 GSE151810, GSE185024, GSE123760 SRR11924485, SRR11924486, SRR16119415, SRR16119416, SRR8315029
ES26 GSE218794, GSE245778 SRR22410790, SRR22410791, SRR22410792, SRR26439462, SRR26439463, SRR26439464
HEK293T7 GSE231583, GSE196043 SRR24421974, SRR24421975, SRR24421976, SRR18074813, SRR18074814, SRR18074815, SRR18074816
Hela7 GSE273634, GSE218727, GSE199309 SRR30058518, SRR30058519, SRR30058520, SRR22407570, SRR22407571, SRR22407572, SRR18462415
HepG25 GSE224980, GSE264010 SRR28685775, SRR28685776, SRR28685777, SRR23387178, SRR23387179
H12994 GSE212057, GSE199309 SRR21237865, SRR21237873, SRR21237881, SRR18462412
K5626 GSE199309, GSE167869 SRR18462409, SRR13800753, SRR13800754, SRR13800737, SRR13800738, SRR13800739
MB0025 GSE229150 GSE261568 SRR28341540, SRR28341541, SRR28341542,SRR28341543
MCF77 GSE195761, GSE178905, GSE163791 SRR17944548, SRR17944549, SRR14915857, SRR14915858, SRR13296901, SRR13296902, SRR13296903
MDA-MB-2316 GSE178532 SRR11544576, SRR11544577, SRR11544578, SRR14870088, SRR14870089, SRR14870090
OVCAR84 GSE246325 SRR26536798, SRR26536799, SRR26536802, SRR26536803
T98G5 GSE112241, PRJNA580150 SRR10358029, SRR10358030, SRR10358031, SRR6881782, SRR6881783
U87MG6 GSE147626, GSE235568 SRR11433766, SRR11433767, SRR11433768, SRR24991947, SRR24991948, SRR24991949
501Mel7 PRJNA515302, GSE104869 SRR8473015, SRR8473019, SRR8473020, SRR6163777, SRR6163778, SRR6163779, SRR6163780

Mouse

Sample Name wild type (#) Non-targeting sgRNA Control (#) Zswim8 Knockout (#) BioProject Number SRR Number
Eye33GSE231447SRR24391488, SRR24391489, SRR24391526, SRR24391480, SRR24391481, SRR24391536
Forebrain33GSE231447SRR24391522, SRR24391523, SRR24391534, SRR24391514, SRR24391515, SRR24391547
Heart33GSE231447SRR24391502, SRR24391503, SRR24391533, SRR24391510, SRR24391511, SRR24391543
Hindbrain33GSE231447SRR24391520, SRR24391521, SRR24391538, SRR24391512, SRR24391513, SRR24391546
Intestine33GSE231447SRR24391494, SRR24391495, SRR24391530, SRR24391486, SRR24391487, SRR24391545
Kidney33GSE231447SRR24391490, SRR24391491, SRR24391531, SRR24391482, SRR24391483, SRR24391539
Liver33GSE231447SRR24391492, SRR24391493, SRR24391527, SRR24391484, SRR24391485, SRR24391540
Lung33GSE231447SRR24391500, SRR24391501, SRR24391532, SRR24391508, SRR24391509, SRR24391542
Muscle33GSE231447SRR24391518, SRR24391519, SRR24391525, SRR24391478, SRR24391479, SRR24391535
Placenta33GSE231447SRR24391516, SRR24391517, SRR24391524, SRR24391476, SRR24391477, SRR24391537
Skin33GSE231447SRR24391496, SRR24391497, SRR24391528, SRR24391504, SRR24391505, SRR24391541
Stomach33GSE231447SRR24391498, SRR24391499, SRR24391529, SRR24391506, SRR24391507, SRR24391544
Embryonic Stem Cell2PRJEB27315ERR2640636, ERR2640637
iNeuron3PRJEB27315ERR2640652, ERR2640653, ERR2640654
MEF3GSE239373SRR25443485, SRR25443484, SRR25443483
Neural Precursor2PRJEB27315ERR2640640, ERR2640641
Striatal cell44PRJNA1093144SRR34804890, SRR34804891, SRR34804892, SRR34804893, SRR34804894, SRR34804895, SRR34804896, SRR34804897

Drosophila melanogaster

Sample Name wild type (#) Non-targeting sgRNA Control (#) Dora Knockout (#) BioProject Number SRR Number
S2 cells53 GSE196837, SRR18048483, SRR18048484, SRR18048425, SRR18048423, SRR18048424, SRR18048427, SRR18048468, SRR18048426
0–4 h Embryos4 GSE196837 SRR18048437, SRR18048436, SRR18048435, SRR18048446
8–12 h Embryos64 GSE196837 SRR18048461, SRR18048433, SRR18048512, SRR18048481, SRR18048482, SRR18048434, SRR18048499, SRR18048531, SRR18048442, SRR18048532
12–16 h Embryos64 GSE196837 SRR18048539, SRR18048525, SRR18048508, SRR18048459, SRR18048432, SRR18048465, SRR18048448, SRR18048497, SRR18048529, SRR18048516
16–20 h Embryos wild type54 GSE196837 SRR18048421, SRR18048538, SRR18048479, SRR18048463, SRR18048527, SRR18048542, SRR18048443, SRR18048495, SRR18048501
Fly Non-targeting Control 3 PRJNA896239 SRR22129292, SRR22129294, SRR22129296

Caenorhabditis elegans

Sample Name wild type (#) Non-targeting sgRNA Control (#) Ebax Knockout (#) BioProject Number SRR Number
Embryos4PRJNA922944SRR23049957, SRR23049959, SRR23049928, SRR23049954
L152GSE68588, GSE262626, GSE267368SRR2010468, SRR2010469, SRR28479534, SRR29013568, SRR29013569, SRR29013570, SRR29013571
L23GSE266398SRR28868053, SRR28868054, SRR28868055
L33PRJNA684142SRR13238604, SRR13238605, SRR13238606
L43PRJNA922944SRR23049963, SRR23049955, SRR23049961
Adult4PRJNA922944, GSE267368SRR23049965, SRR23049966, SRR23049906, SRR23049937

3. What miRNA Expression Profile data is available in CLASHub?

microRNA Expression Profile data from four species: Human, Mouse, Drosophila melanogaster, and Caenorhabditis elegans. Below is the summary of available datasets:

Human

Sample Name Wild Type (#) Non-targeting sgRNA Control (#) ZSWIM8 Knockout (#) BioProject Number SRR Number
A54933GSE163387SRR13264637, SRR13264638, SRR13264639, SRR13264640, SRR13264641, SRR13264642
HEK293T33 GSE123627, GSE158025 SRR12650650, SRR12650651, SRR12650652, SRR12650653, SRR12650654, SRR12650655
HeLa33 GSE123627, GSE163387 SRR13264643, SRR13264644, SRR13264645, SRR13264646, SRR13264647, SRR13264648
K56266 GSE158025, GSE163388 SRR12650656, SRR12650657, SRR12650658, SRR13264707, SRR13264708, SRR13264709, SRR12650659, SRR12650660, SRR12650661, SRR13264710, SRR13264711, SRR13264712
MCF723GSE163388SRR13264649, SRR13264650, SRR13264651, SRR13264652, SRR13264653

Mouse

Sample Name wild type (#) Non-targeting sgRNA Control (#) Zswim8 Knockout (#) BioProject Number SRR Number
Brain33GSE235065SRR24941005, SRR24941026, SRR24940996, SRR24941021, SRR24941036, SRR24941000
Heart33GSE235065SRR24941003, SRR24941027, SRR24940995, SRR24941022, SRR24941035, SRR24940999
Kidney33GSE235065SRR24941001, SRR24940993, SRR24941029, SRR24941011, SRR24941033, SRR24941017
Liver33GSE235065SRR24941004, SRR24940989, SRR24941030, SRR24941010, SRR24941032, SRR24941016
Lung33GSE235065SRR24940992, SRR24940998, SRR24941018, SRR24941008, SRR24941031, SRR24941015
Intestine33GSE235065SRR24941002, SRR24940994, SRR24941028, SRR24941023, SRR24941012, SRR24941034
Neuron32GSE163387SRR13264632, SRR13264633, SRR13264634, SRR13264635, SRR13264636
MEF66GSE163387, GSE158025SRR13264626, SRR13264627, SRR13264628, SRR12650662, SRR12650663, SRR12650664, SRR13264629, SRR13264630, SRR13264631, SRR12650665, SRR12650666, SRR12650667
Stomach33GSE235065SRR24941020, SRR24941009, SRR24940990, SRR24941006, SRR24941025, SRR24941013
Skin33GSE235065SRR24941019, SRR24940991, SRR24940997, SRR24941024, SRR24941007, SRR24941014
Striatal cell 44PRJNA1093144SRR28497187, SRR28497188, SRR28497191, SRR28497192, SRR28497193, SRR28497194, SRR28497195, SRR28497196

Drosophila melanogaster

Sample Name Wild Type (#) Non-targeting sgRNA Control (#) Dora Knockout (#) BioProject Number SRR Number
S2 cells 3 3 GSE163388 SRR13264713, SRR13264714, SRR13264715, SRR13264716, SRR13264717, SRR13264718

Caenorhabditis elegans

Sample Name Wild Type (#) Non-targeting sgRNA Control (#) Ebax Knockout (#) BioProject Number Data Source
Early Embryo22GSE267367SRR29013903, SRR29013904, SRR29013905, SRR29013906
Late Embryo22GSE267367SRR29013899, SRR29013900, SRR29013901, SRR29013902
L144GSE267367SRR29013871, SRR29013872, SRR29013873, SRR29013874, SRR29013895, SRR29013896, SRR29013897, SRR29013898
L222GSE267367SRR29013891, SRR29013892, SRR29013893, SRR29013894
L322GSE267367SRR29013887, SRR29013888, SRR29013889, SRR29013890
L454GSE267367SRR29013866, SRR29013867, SRR29013868, SRR29013869, SRR29013870, SRR29013883, SRR29013884, SRR29013885, SRR29013886
Gravid adult22GSE267367SRR29013879, SRR29013880, SRR29013881, SRR29013882
Glp-422GSE267367SRR29013875, SRR29013876, SRR29013877, SRR29013878

4. How is CLASH V2 data analyzed in CLASHub?

Choose the data source. Public data is recommended: enter one GSE, PRJNA, or SRP study, or up to 20 SRR runs. CLASHub checks the archive records and lets you select the runs before confirmation. Paired-end or single-end FASTQ.gz and cleaned FASTA.gz uploads remain supported.

Review preprocessing. Automatic adapter and read-structure detection is the default for FASTQ data. AI-assisted review can interpret public protocol information, but deterministic read evidence and remapping safety checks decide the adapter and UMI plan that is executed.

Run CLASH V2. The pipeline analyzes direct chimeric reads and AGO peak-supported candidate sites while keeping direct, ago_peak, and direct+ago_peak evidence separate.

Open the results. Completed jobs provide an HTML report, a miRNA-target result table, and an AGO coverage track when available. Results remain private job files and are not automatically imported into the public database.

5. How is miRNA-seq V2 data analyzed in CLASHub?

Choose the data source. Enter one GSE, PRJNA, or SRP study, or up to 12 SRR runs. After checking the accession, select the samples, verify the detected species, and confirm by email. Paired-end or single-end FASTQ.gz and cleaned FASTA.gz uploads remain supported.

Review preprocessing. Public FASTQ data uses automatic adapter and read-structure detection. AI-assisted protocol review can propose adapter or UMI candidates, but the executed plan must pass deterministic sample evidence and remapping checks.

Quantify miRNA. Selected runs remain separate samples. The V2 workflow uses the shared species-specific miRNA reference and preserves its documented identity and isomiR rules.

Open the results. Outputs include raw counts, CPM, isomiR information, preprocessing records, and an HTML report. Results are not automatically imported into the public database.

6. How is RNA-seq V2 data analyzed in CLASHub?

Choose the data source. Enter one GSE, PRJNA, or SRP study, one supported Dryad dataset, or up to 20 SRR runs. Public files are checked before transfer. Single-end and paired-end FASTQ.gz uploads remain available.

Review the samples. Select the runs, verify the species and read layout, choose the library type, and confirm the request by email. Each selected run remains a separate sample unless a reviewed design says otherwise.

Run preprocessing and quantification. Automatic adapter and terminal-structure handling is checked against the reads and genome-remapping evidence. RNA-seq V2 then aligns and quantifies each sample.

Open the results. The current V2 form produces gene Counts and TPM matrices without requiring control/treatment groups or replicates. Optional exon and intron count matrices are available. Differential expression is not part of this quantification request.

7. How is cumulative fraction curve analysis performed in CLASHub?

Step 1: Data Upload and Input
Users upload a differential gene expression CSV file containing GeneName, BaseMean, and log2FoldChange. A BaseMean threshold (default: 100) filters out low-expression transcripts to ensure robust results.

Step 2: Target Identification
Target genes are classified into two groups:
2.1 CLASH-Derived Targets: Identified via experimental CLASH data (Conserved and All targets).
2.2 TargetScan-Derived Targets: Predicted interactions extracted from TargetScan databases.

Step 3: Curve Generation and Analysis Modes
The tool compares fold change distributions between miRNA targets and non-target genes using two available modes:
3.1 Standard Analysis: Groups targets by broad conservation status.
3.2 Stringent Filtering: Narrows the analysis specifically to the top 25% of high-efficacy targets based on TargetScan Context++ scores, revealing more pronounced repression patterns.
Statistical differences between target groups and background non-targets are quantified via Mann–Whitney U tests.

Step 4: Output Results
Outputs include SVG files of the Cumulative Fraction Curves visually plotting the repression shifts, alongside a comprehensive merged CSV dataset that annotates each gene with its specific target classification (e.g., top 25% Context++, high-confidence CLASH overlaps, or non-targets).