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Transcriptomic analysis of HeLa cells depleted in CELF1, ELAVL1, and both

ABSTRACT: Transcriptomic analysis of HeLa cells depleted in CELF1, ELAVL1, and both

PROVIDER: PRJNA487606 | ENA |

REPOSITORIES: ENA

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Transcriptomic analysis of HeLa cells depleted in CELF1, ELAVL1, and both

Project description:ELAVL1 and CELF1 are two RNA-binding proteins involved in alternative splicing control. To address their functional relationships, we identify the differentially spliced mRNAs upon depletion of CELF1, ELAVL1, or both. These proteins control similar sets of genes with similar consequences on exon inclusion or skipping. The magnitude of the effect of the double depletion equals the sum of the magnitudes of the individual depletions, showing that CELF1 and ELAVL1 additively control their target RNAs. CELF1 and ELAVL1 regulated splicing events include ACSL4, WNK1, CD44, MICAL3, and JDP2. Using FRET, we find that CELF1 and ELAVL1 directly interact in cell nuclei. We demonstrate that the combined levels of CELF1 and ELAVL1 is a valuable biomarker in breast cancer, while their levels bring very limited information when taken individually. A “co-RNA splicing map” of CELF1 and ELAVL1 shows they repress alternative splice sites when bound nearby, but activate them when bound further away. Together, these data point to strong functional interactions between CELF1 and ELAVL1 to control alternative splicing with significant impacts in human pathology.

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Quantitative Analysis of Transcriptomes between Negative control, UBR5 depleted and MYC depleted HeLa cells

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