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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcriptome-wide discovery of microRNA binding sites in human brain by Ago2 HITS-CLIP

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

ORGANISM(S): Homo sapiens

SUBMITTER: Ryan Boudreau

PROVIDER: E-GEOD-52084 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Transcriptome-wide discovery of microRNA binding sites in human brain.

Boudreau Ryan L RL Jiang Peng P Gilmore Brian L BL Spengler Ryan M RM Tirabassi Rebecca R Nelson Jay A JA Ross Christopher A CA Xing Yi Y Davidson Beverly L BL

Neuron 20140102 2

The orchestration of brain function requires complex gene regulatory networks that are modulated, in part, by microRNAs (miRNAs). These noncoding RNAs associate with argonaute (Ago) proteins in order to direct posttranscriptional gene suppression via base pairing with target transcripts. In order to better understand how miRNAs contribute to human-specialized brain processes and neurological phenotypes, identifying their targets is of paramount importance. Here, we address the latter by profilin ...[more]

PMID: 24389009

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Transcriptome-wide discovery of microRNA binding sites in human brain by Ago2 HITS-CLIP [Ago2-miRNA complexes]

Project description:Here, seeking to gain insight into the array of transcripts engaged with miRNAs in human brain, we performed HITS-CLIP to profile transcriptome-wide Ago2:RNA interactions in a panel of eleven post-mortem adult human brain samples harvested from adult motor cortex and cingulate gyrus, regions associated with movement and psychiatric disorders . High-throughput sequencing of RNA isolated by crosslinking immunoprecipitation (HITS-CLIP) Eleven post-mortem adult human brain tissues were subjected to ultraviolet radiation to crosslink proteins with nucleic acids, and HITS-CLIP was performed as previously described by Chi et al Nature. 2009 Jul 23;460(7254):479-86 using an anti-Ago2 polyclonal antibody and some additional modifications.

2014-01-03 | E-GEOD-52083 | biostudies-arrayexpress

Transcriptome-wide discovery of microRNA binding sites in human brain by Ago2 HITS-CLIP [Ago2-miRNA-target mRNA complexes]

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Elucidation of Transcriptome-Wide MicroRNA Binding Sites in Human Cardiac Tissues by Ago2 HITS-CLIP

Project description:We deciphered Ago2:RNA interactions in post-mortem human heart tissues using crosslinking immunoprecipitation coupled with high-throughput sequencing (HITS-CLIP) to generate the first transcriptome-wide map of miR targeting events in human myocardium, detecting 4000 cardiac Ago2 binding sites across >2200 target transcripts. Profiling AGO2-associated RNAs in cardiac tissues obtained from 6 donors with heart diseases of differing etiologies

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Project description:We performed Ago HITS-CLIP to identify targets of viral and human miRNAs in latently KSHV-infected PEL cells Ago HITS-CLIP was performed in two latently infected PEL cell lines, BCBL-1 and BC-3; Argonaute-immunoprecipitation of UV cross-linked Ago-miRNA-mRNA complexes, followed by RNA isolation, library construction, and high-throughput sequencing (Illumina GAxII); we performed 3 biological replicates for each cell line, two technical (sequencing) replicates of BCBL-1 biological replicate 1

2012-10-05 | E-GEOD-41357 | biostudies-arrayexpress

HNRPA2B1 HITS-CLIP

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Dynamic Recruitment of miRNAs to their mRNA Targets in Regenerating Liver

Project description:Validation of physiologic miRNA targets has been met with significant challenges. We employed HITS-CLIP to identify which miRNAs participate in liver regeneration, and to identify their target mRNAs. miRNA recruitment to the RISC is highly dynamic, changing more than five-fold for several miRNAs. miRNA recruitment to the RISC did not correlate with changes in overall miRNA expression for these dynamically recruited miRNAs, emphasizing the necessity to determine miRNA recruitment to the RISC in order to fully assess the impact of miRNA regulation. We incorporated RNAseq quantification of total mRNA to identify expression-weighted Ago footprints, and developed a microRNA regulatory element (MRE) prediction algorithm that represents a greater than 20-fold refinement over computational methods. These high confidence MREs were used to generate candidate competing endogenous RNA (ceRNA) networks. Conclusion: HITS-CLIP analysis provide novel insights into global miRNA:mRNA relationships in the regenerating liver .

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Argonaute HITS-CLIP to identify miRNA target sites in the bovine retina

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HITS-CLIP analysis of FUS in lineage-committed cells.

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2012-07-26 | E-GEOD-37190 | biostudies-arrayexpress

MLE HITS-CLIP in Drosophila S2 cells

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