|
| Status |
Public on Dec 20, 2013 |
| Title |
RBM6 sh1 |
| Sample type |
RNA |
| |
|
| Source name |
HeLa cell, RBM6 kd
|
| Organism |
Homo sapiens |
| Characteristics |
shRNA sequence: CCGGGCCTATCTGGAAAGGAGAGAACTCGAGTTCTCTCCTTTCCAGATAGGCTTTTTTG and CCGGCAAATGTAGAGGAGCATTCTTCTCGAGAAGAATGCTCCTCTACATTTGTTTTTTG
cell line: HeLa
treatment: RBM6 kd
|
| Treatment protocol |
Knockdowns of RBM5, RBM6 or RBM10 in Hela cells were performed by lentiviral infections using the pLKO.1 carrier vector for specific shRNA (Sigma Aldrich).
|
| Growth protocol |
HeLa cell lines were cultured in Dulbecco’s modified Eagle’s medium (DMEM) supplemented with 10% fetal bovine serum (FBS) and penicillin/streptomycin.
|
| Extracted molecule |
total RNA |
| Extraction protocol |
RNA from three biological replicates of sh-RBM infected HeLa cells was purified using Rneasy mini kit (Qiagen).
|
| Label |
biotin
|
| Label protocol |
Samples were enzymatically fragmented and biotinylated using the WT Terminal Labeling Kit (Affymetrix)
|
| |
|
| Hybridization protocol |
Samples were hybridized using Affymetrix hybridization kit materials. Heat cocktails at 99° for 5 minutes, then 42° for 5 minutes centrifuge at max speed for 1 minute (N.B. this deviates from Affy SOP). Transfer 200μl of hyb solution to each array, then tape holes and parafilm. Hybridize 16 hours at 45° at 60rpm. Fluidics washing is FS450_0001.
|
| Scan protocol |
Affymetrix Gene ChIP Scanner 3000 7G
|
| Description |
Additional analysis data in VALCARCEL_RBM6-sh_vs_plko.xls
|
| Data processing |
Affymetrix HJAY dataset analysis was performed by GenoSplice technology (www.genosplice.com). Raw data was processed using Expression Console to get the RMA intensities values of Affymetrix HJAY probesets. Additional analysis included the follwing. Data were normalized using quantile normalization. Background corrections were made with antigenomic probes and probes were selected according to their %GC, cross-hybridization status and potential overlap with repeat region as previously described [PMID:23321315, PMID:23284676]. Only probes targeting exons and exon-exon junctions annotated from FAST DB® transcripts (release fastdb_2012_2) were selected [PMID:16052034,PMID:17547750]. Only probes with a DABG Pvalue ≤ 0.05 in at least half of the arrays were considered for statistical analysis [PMID:23321315, PMID:23284676]. Only genes expressed in at least one compared condition were analyzed. To be considered to be expressed, the DABG Pvalue had to be ≤ 0.05 for at least half of the gene probes. We performed an unpaired Student’s t-test to compare gene intensities between two experimental conditions. Genes were considered significantly regulated when fold-change was ≥1.5 and Pvalue 0.05 (unadjusted P-value). Analysis at the splicing level was first performed taking into account only exon probes (EXON analysis) in order to potentially detect new alternative events that could be differentially regulated (i.e., without taking into account exon-exon junction probes). Analysis at the splicing level was also performed by taking into account exon-exon junction probes (SPLICING PATTERN analysis) using the FAST DB® splicing patterns annotation (i.e., for each gene, all possible splicing patterns were defined and analyzed. All types of alternative events can be analyzed: Alternative first exons, alternative terminal exons, cassette exon, mutually exclusive exons, alternative 5’ donor splice site, alternative 3’ acceptor splice sites and intron retention). EXON and SPLICING PATTERN analyses were performed using unpaired Student's t-test on the splicing-index as previously described [PMID:23321315, PMID:23284676]. Results were considered statistically significant for unadjusted P-values ≤ 0.05 and fold-changes ≥ 2.0 for EXON analysis and for unadjusted P-values ≤ 0.05 and fold-changes ≥ 1.5 for SPLICING PATTERN analysis. Gene Ontology (GO), KEGG and REACTOME analyses of differentially regulated genes were performed using DAVID [PMID:19131956].
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| |
|
| Submission date |
May 28, 2013 |
| Last update date |
Dec 21, 2013 |
| Contact name |
Endre Sebestyén |
| Organization name |
Semmelweis University
|
| Department |
1st Department of Pathology and Experimental Cancer Research
|
| Street address |
Üllői út 26.
|
| City |
Budapest |
| ZIP/Postal code |
1085 |
| Country |
Hungary |
| |
|
| Platform ID |
GPL15106 |
| Series (1) |
| GSE47431 |
Regulation of NUMB alternative splicing by RBM5, RBM6 and RBM10 controls cancer cell proliferation |
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