ArticleBMC genomics2013
The regulatory role of Pcf11-similar-4 (PCFS4) in Arabidopsis development by genome-wide physical interactions with target loci.
Article in BMC genomics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 12 citations in OpenAlex.
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe yeast and human Pcf11 functions in both constitutive and regulated transcription and pre-mRNA processing. The constitutive roles of PCF11 are largely mediated by its direct interaction with RNA Polymerase II C-terminal domain and a polyadenylation factor, Clp1. However, little is known about the mechanism of the regulatory roles of Pcf11. Though similar to Pcf11 in multiple aspects, Arabidopsis Pcf11-similar-4 protein (PCFS4) plays only a regulatory role in Arabidopsis gene expression. Towards understanding how PCFS4 regulates the expression of its direct target genes in a genome level, ChIP-Seq approach was employed in this study to identify PCFS4 enrichment sites (ES) and the ES-linked genes within the Arabidopsis genome.
resultsA total of 892 PCFS4 ES sites linked to 839 genes were identified. Distribution analysis of the ES sites along the gene bodies suggested that PCFS4 is preferentially located on the coding sequences of the genes, consistent with its regulatory role in transcription and pre-mRNA processing. Gene ontology (GO) analysis revealed that the ES-linked genes were specifically enriched in a few GO terms, including those categories of known PCFS4 functions in Arabidopsis development. More interestingly, GO analysis suggested novel roles of PCFS4. An example is its role in circadian rhythm, which was experimentally verified herein. ES site sequences analysis identified some over-represented sequence motifs shared by subsets of ES sites. The motifs may explain the specificity of PCFS4 on its target genes and the PCFS4's functions in multiple aspects of Arabidopsis development and behavior.
conclusionsArabidopsis PCFS4 has been shown to specifically target on, and physically interact with, the subsets of genes. Its targeting specificity is likely mediated by cis-elements shared by the genes of each subset. The potential regulation on both transcription and mRNA processing levels of each subset of the genes may explain the functions of PCFS4 in multiple aspects of Arabidopsis development and behavior.
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