The m6A reader CPSF30-L regulates alternative polyadenylation affecting nitrate signaling in Arabidopsis
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ABSTRACT:
PROVIDER: PRJNA606046 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR11068176.fastq.gz | Fastqsanger.gz | |||
| SRR11068177.fastq.gz | Fastqsanger.gz | |||
| SRR11068178.fastq.gz | Fastqsanger.gz | |||
| SRR11068179.fastq.gz | Fastqsanger.gz | |||
| SRR11068180.fastq.gz | Fastqsanger.gz |
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Project description:As the most ubiquitous internal modification of eukaryotic mRNA, m6A (N6-methyladenosine) modification plays a vital role in almost every aspect of mRNA metabolism. However, the evidence of m6A in regulating the alternative polyadenylation (APA) is limited. APA is controlled by a large protein-RNA complex with many components including CPSF30. Arabidopsis CPSF30 has two isoforms, the longer one named CPSF30-L containing an additional YTH (YT512-B Homology)-domain in the C terminus, which is unique in plant. In this study, we revealed that m6A modification directly regulated APA, by proving the capability of Arabidopsis CPSF30-L YTH domain binding to m6A substrate by using in vitro assay and structural studies. We observed that extensive genes shifted their poly(A) sites in cpsf30-2 and found that numerous genes altered polyadenylation site (PAS) that correlated well with previously identified m6A peaks, indicating that genes carry m6A modification are prone to be regulated by APA. Moreover, we found that several important genes involved in nitrate metabolism are amongst those genes with APA site alteration in cpsf30-2.And we could rescue these APA and nitrate metabolism defects by introducing the wild-type CPSF30-L, but not by m6A-binding defective mutants (W259A, W310A or Y319A), which explained the nitrogen signaling defects of cpsf30-2 discovered previously. Taken together, our results demonstrated that m6A modification could directly regulate APA in Arabidopsis and revealed the function of m6A reader CPSF30-L in nitrate signaling by controlling APA regulation. This study will shed new lights on the roles of m6A modification during RNA 3’-end processing in plant development.
2021-03-16 | GSE145109 | GEO
Project description:Cleavage and polyadenylation specificity factor (CPSF) is the central component of the 3' processing machinery for polyadenylated mRNAs in metazoans: CPSF recognizes the polyadenylation signal AAUAAA, providing sequence specificity in both pre-mRNA cleavage and polyadenylation, and catalyzes pre-mRNA cleavage. Here we show that of the seven polypeptides that have been proposed to constitute CPSF, only four, CPSF160, CPSF30, hFip1 and WDR33, are necessary and sufficient to reconstitute a CPSF subcomplex active in AAUAAA-dependent polyadenylation, whereas CPSF100, CPSF73 and symplekin are dispensable. WDR33 is required for binding of reconstituted CPSF to AAUAAA-containing RNA and can be specifically UV-crosslinked to such RNAs, as can be CPSF30. Transcriptome-wide identification of WDR33 targets by PAR-CLIP shows that WDR33 specifically binds the AAUAAA signal in vivo in contrast to any of the five other CPSF subunits tested before. Thus, our data indicate that the CPSF subunit that is mainly responsible for recognizing the polyadenylation signal is WDR33 and not CPSF160, as suggested by previous studies. Transcriptome-wide profiling of WDR33 binding sites using PAR-CLIP in HEK293 cells.
2014-09-25 | E-GEOD-61123 | biostudies-arrayexpress
Project description:We conduct herein a systematic study of mRNA recognition and consequent polyadenylation processing of the Arabidopsis mRNA by m6A reader protein CPSF70. Transcriptome-wide characterization of CPSF70-binding sites supporting the recognition m6A-methylated mRNA with CPSF70, and the results of which linked polyadenylation signals recognition. We then perform 3’end sequencing with A-seq2 to identify CPSF70-dependent APA process, showing that CPSF70 modulate m6A–dependent polyadenylation with FUE recognition.
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Project description:Cleavage and polyadenylation specificity factor (CPSF) is the central component of the 3' processing machinery for polyadenylated mRNAs in metazoans: CPSF recognizes the polyadenylation signal AAUAAA, providing sequence specificity in both pre-mRNA cleavage and polyadenylation, and catalyzes pre-mRNA cleavage. Here we show that of the seven polypeptides that have been proposed to constitute CPSF, only four, CPSF160, CPSF30, hFip1 and WDR33, are necessary and sufficient to reconstitute a CPSF subcomplex active in AAUAAA-dependent polyadenylation, whereas CPSF100, CPSF73 and symplekin are dispensable. WDR33 is required for binding of reconstituted CPSF to AAUAAA-containing RNA and can be specifically UV-crosslinked to such RNAs, as can be CPSF30. Transcriptome-wide identification of WDR33 targets by PAR-CLIP shows that WDR33 specifically binds the AAUAAA signal in vivo in contrast to any of the five other CPSF subunits tested before. Thus, our data indicate that the CPSF subunit that is mainly responsible for recognizing the polyadenylation signal is WDR33 and not CPSF160, as suggested by previous studies.
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Project description:N6-methyladenosine (m6 A) and alternative polyadenylation (APA) are important regulators of gene expression in eukaryotes. Recently, it was found that m6 A is closely related to APA. However, the molecular mechanism of this new APA regulation remains elusive. Here, we show that YTHDC1, a nuclear m6 A reader, can suppress proximal APA sites and produce longer 3' UTR transcripts by binding to their upstream m6 A sites. YTHDC1 can directly interact with the 3' end processing factor FIP1L1 and interfere with its ability to recruit CPSF4. Binding to the m6 A sites can promote liquid-liquid phase separation of YTHDC1 and FIP1L1, which may play an important role in their interaction and APA regulation. Collectively, YTHDC1 as an m6 A "reader" links m6 A modification with pre-mRNA 3' end processing, providing a new mechanism for APA regulation.
2022-03-11 | GSE198143 | GEO
Project description:m6A reader CPSF70 controls polyadenylation site choice through m6A-dependent recognition of FUE polyadenylation signal
| PRJNA601435 | ENA
Project description:Complex organisms are able to generate differential gene expression through the same set of DNA sequences in distinct cells. The communication between chromatin and RNA regulates how cells behave in tissues. However, little is known about how chromatin, especially the histone modifications, regulates RNA polyadenylation. Here, we find that FUS is recruited to chromatin by H3K36me3 at gene bodies. Once H3K36me3 is abolished, FUS is dissociated from chromatin to increase the binding with RNA, resulting in increased distal polyadenylation selections that are far from the stop codon. The H3K36me3 recognition of FUS is mediated by the proline residues in ZNF domain, mutations of which lead to reduced chromatin association of FUS, increased RNA binding of FUS, and distal polyadenylation selections. Proline mutation, which corresponds to the mutation in amyotrophic lateral sclerosis, contributes to the hyperactivation of mitochondria and hyperdifferentiation in mouse embryonic stem cells. These findings reveal FUS as an H3K36me3 reader protein that links chromatin-mediated alternative polyadenylation to human disease.
2024-03-21 | GSE212424 | GEO
Project description:Complex organisms are able to generate differential gene expression through the same set of DNA sequences in distinct cells. The communication between chromatin and RNA regulates how cells behave in tissues. However, little is known about how chromatin, especially the histone modifications, regulates RNA polyadenylation. Here, we find that FUS is recruited to chromatin by H3K36me3 at gene bodies. Once H3K36me3 is abolished, FUS is dissociated from chromatin to increase the binding with RNA, resulting in increased distal polyadenylation selections that are far from the stop codon. The H3K36me3 recognition of FUS is mediated by the proline residues in ZNF domain, mutations of which lead to reduced chromatin association of FUS, increased RNA binding of FUS, and distal polyadenylation selections. Proline mutation, which corresponds to the mutation in amyotrophic lateral sclerosis, contributes to the hyperactivation of mitochondria and hyperdifferentiation in mouse embryonic stem cells. These findings reveal FUS as an H3K36me3 reader protein that links chromatin-mediated alternative polyadenylation to human disease.
2024-03-21 | GSE212423 | GEO
Project description:Complex organisms are able to generate differential gene expression through the same set of DNA sequences in distinct cells. The communication between chromatin and RNA regulates how cells behave in tissues. However, little is known about how chromatin, especially the histone modifications, regulates RNA polyadenylation. Here, we find that FUS is recruited to chromatin by H3K36me3 at gene bodies. Once H3K36me3 is abolished, FUS is dissociated from chromatin to increase the binding with RNA, resulting in increased distal polyadenylation selections that are far from the stop codon. The H3K36me3 recognition of FUS is mediated by the proline residues in ZNF domain, mutations of which lead to reduced chromatin association of FUS, increased RNA binding of FUS, and distal polyadenylation selections. Proline mutation, which corresponds to the mutation in amyotrophic lateral sclerosis, contributes to the hyperactivation of mitochondria and hyperdifferentiation in mouse embryonic stem cells. These findings reveal FUS as an H3K36me3 reader protein that links chromatin-mediated alternative polyadenylation to human disease.
2024-03-21 | GSE212422 | GEO
Project description:Divergence of alternative polyadenylation in mouse
| PRJEB15336 | ENA