PMID- 24926684 OWN - NLM STAT- MEDLINE DCOM- 20151026 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 6 DP - 2014 TI - Certain adenylated non-coding RNAs, including 5' leader sequences of primary microRNA transcripts, accumulate in mouse cells following depletion of the RNA helicase MTR4. PG - e99430 LID - 10.1371/journal.pone.0099430 [doi] LID - e99430 AB - RNA surveillance plays an important role in posttranscriptional regulation. Seminal work in this field has largely focused on yeast as a model system, whereas exploration of RNA surveillance in mammals is only recently begun. The increased transcriptional complexity of mammalian systems provides a wider array of targets for RNA surveillance, and, while many questions remain unanswered, emerging data suggest the nuclear RNA surveillance machinery exhibits increased complexity as well. We have used a small interfering RNA in mouse N2A cells to target the homolog of a yeast protein that functions in RNA surveillance (Mtr4p). We used high-throughput sequencing of polyadenylated RNAs (PA-seq) to quantify the effects of the mMtr4 knockdown (KD) on RNA surveillance. We demonstrate that overall abundance of polyadenylated protein coding mRNAs is not affected, but several targets of RNA surveillance predicted from work in yeast accumulate as adenylated RNAs in the mMtr4KD. microRNAs are an added layer of transcriptional complexity not found in yeast. After Drosha cleavage separates the pre-miRNA from the microRNA's primary transcript, the byproducts of that transcript are generally thought to be degraded. We have identified the 5' leading segments of pri-miRNAs as novel targets of mMtr4 dependent RNA surveillance. FAU - Dorweiler, Jane E AU - Dorweiler JE AD - Department of Biological Sciences, Marquette University, Milwaukee, Wisconsin, United States of America. FAU - Ni, Ting AU - Ni T AD - DNA Sequencing and Genomics Core, Genetics and Development Biology Center, National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, Maryland, United States of America. FAU - Zhu, Jun AU - Zhu J AD - DNA Sequencing and Genomics Core, Genetics and Development Biology Center, National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, Maryland, United States of America. FAU - Munroe, Stephen H AU - Munroe SH AD - Department of Biological Sciences, Marquette University, Milwaukee, Wisconsin, United States of America. FAU - Anderson, James T AU - Anderson JT AD - Department of Biological Sciences, Marquette University, Milwaukee, Wisconsin, United States of America. LA - eng GR - R15 GM100445/GM/NIGMS NIH HHS/United States GR - ImNIH/Intramural NIH HHS/United States GR - 1R15GM100445-01A1/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, N.I.H., Intramural PT - Research Support, Non-U.S. Gov't DEP - 20140613 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (5' Untranslated Regions) RN - 0 (MicroRNAs) RN - 0 (Nuclear Proteins) RN - 0 (RNA, Small Interfering) RN - 0 (RNA-Binding Proteins) RN - 24937-83-5 (Poly A) RN - EC 3.1.26.3 (Drosha protein, mouse) RN - EC 3.1.26.3 (Ribonuclease III) RN - EC 3.6.4.13 (RNA Helicases) RN - EC 3.6.4.13 (SKIV2L2 protein, mouse) SB - IM MH - *5' Untranslated Regions MH - Animals MH - Cell Line MH - Gene Knockdown Techniques MH - High-Throughput Nucleotide Sequencing MH - Mice MH - MicroRNAs/*genetics/*metabolism MH - Nuclear Proteins/*genetics/*metabolism MH - Poly A/metabolism MH - RNA Helicases MH - RNA Stability MH - RNA, Small Interfering/metabolism MH - RNA-Binding Proteins/*genetics/*metabolism MH - Ribonuclease III/metabolism MH - Sequence Analysis, RNA PMC - PMC4057207 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/06/14 06:00 MHDA- 2015/10/27 06:00 PMCR- 2014/06/13 CRDT- 2014/06/14 06:00 PHST- 2014/03/27 00:00 [received] PHST- 2014/05/14 00:00 [accepted] PHST- 2014/06/14 06:00 [entrez] PHST- 2014/06/14 06:00 [pubmed] PHST- 2015/10/27 06:00 [medline] PHST- 2014/06/13 00:00 [pmc-release] AID - PONE-D-14-13808 [pii] AID - 10.1371/journal.pone.0099430 [doi] PST - epublish SO - PLoS One. 2014 Jun 13;9(6):e99430. doi: 10.1371/journal.pone.0099430. eCollection 2014.