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KDM5 Lysine Demethylases Are Involved in Maintenance of 3'UTR Length

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Saccharomyces cerevisiae

PROVIDER: GSE67212 | GEO | 2016/03/23

SECONDARY ACCESSION(S): PRJNA279265

REPOSITORIES: GEO

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KDM5 Lysine Demethylases Are Involved in Maintenance of 3'UTR Length

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2016-03-23 | E-GEOD-67212 | biostudies-arrayexpress

KDM5 lysine demethylases are involved in maintenance of 3'UTR length.

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KDM5 Lysine Demethylases Are Involved in Maintenance of 3'UTR Length [RNA-Seq]

Project description:We discovered that the Saccharomyces cerevisiae lysine demethylase, Jhd2 (also known as KDM5), recruits 3'UTR processing machinery and promotes alteration of 3'UTR length in a demethylase-dependent manner. Interaction of Jhd2 with both chromatin and RNA suggests that Jhd2 affects selection of polyadenylation sites through a transcription-coupled mechanism. For 3'READs analysis, wild-type yeast or yeast with JHD2 deleted were grown to mid-log phase and RNA was extracted as mentioned above. cDNA libraries enriched for 3'UTRs were prepared as previously published and as noted in Figure 4a [28]. Samples were then subjected to RNA sequencing on the Illumina Hiseq 2000 using 50bp single end reads. Data was analyzed as previously [Hoque M] with the following modifications: The adapter sequences were trimmed off the single-ended reads. The remaining reads longer than 15 bp were mapped to yeast genome SacCer3 using bowtie2 [Langmead B 2012] with the setting '-5 4 --local', trimming off 4bp from 5' and allowing soft clipping (S) at both ends. The alignments were then filtered by 1) MAPQ>=10, 2) mismatches <= 5%, 3) unaligned 5' Ts >=2 to get the PASS reads. The last aligned positions of the PASS reads were grouped to pA clusters with a clustering size of 24 bp. Each pA cluster was assigned to one of the genes defined by SGD [Cherry JM]. The 3' end of a gene was extended 1000bp from the end of CDS until it overlaps with another gene in the same direction. The pA Clusters were then filtered by contains 1) >= 3 PASS reads 2) >= 5% of all PASS reads mapped to the gene.

2016-03-23 | E-GEOD-67163 | biostudies-arrayexpress