Project description:Influenza A viruses (IAVs) mRNA splicing represents an essential step in the viral life cycle. Here, we show that induction of SRSF5 by IAVs promotes viral replication by enhancing M mRNA splicing. To determine the motif in the M pre-mRNA targeted by SRSF5 RRM2 domain, the RNA eluted from co-precipitation of SRSF5–Flag from IAV-infected srsf5−/− HEK293 cells was subjected to deep sequencing analysis.
Project description:We used HeLa cells where SRSF5 was knocked out by CRISPR/Cas9 to perform Nascent-seq. WT cells served as control. One hour before harvesting, cells were incubated with 4-sU for exactly 1 hour to label newly transcribed RNAs. 4-sU-labelled RNAs were biotinylated and purified over streptavidin beads and transformed into an RNA-seq library. We compared differential expression and intron retention between WTand SRSF5 KO samples.
Project description:L-Arginine promotes oral keratinocyte proliferation under high glucose conditions. The treatment leads to changes in a substantial number of gene transcripts related to cell cycle, cell proliferation, and spliceosome GO terms as well as signaling pathways. Among these top-upregulated genes, CYP1A1, SKP2, and SRSF5 are of particular significance.