Navigation Links
miRNA-mediated silencing of mRNAs

Dr. Elisa Izaurrralde and colleagues (EMBL; Max-Planck-Institute for Developmental Biology-Tuebingen) provide new mechanistic insight into gene silencing by miRNAs

Their paper will be featured on the cover of the July 15th issue of G&D, and also will be made available online in advance on 7/3.

MicroRNAs (miRNAs) are a novel class of small regulatory RNAs that silence the expression of complementary mRNA targets.

Dr. Izaurralde and colleagues demonstrate that the P-body protein, GW182, interacts with the miRNA effector Argonaute proteins as well as mRNA degradation enzymes, to promote target mRNA decay. The authors establish that GW182 functions downstream of the Argonaute-1 protein in the miRNA pathway, targeting transcripts for decay via a deadenylation and decapping reaction.

The question of whether miRNAs silence gene expression without affecting mRNA levels has been controversial, and conflicting results have been reported in the literature. Dr. Izaurralde explains that, "Our findings reveal that miRNAs silencing gene expression by at least two independent mechanisms: by repression of translation and/or by induction of mRNA degradation. This provides an explanation for changes in mRNA levels observed at least for a subset of miRNA targets."


'"/>

Source:Cold Spring Harbor Laboratory


Page: 1

Related biology news :

1. Novel gene-silencing nanoparticles shown to inhibit Ewings sarcoma
2. Gene silencing technique offers new strategy for treating, curing disease
3. Molecular steps involved in the creation of gene-silencing microRNAs identified
4. Twin molecular scissors link creation of microRNAs with gene-silencing
5. New mechanism for essential genome-wide gene silencing identified
6. Pathway toward gene silencing described in plants
7. Newly identified mechanism for silencing genes points to possible anti-cancer strategies
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/5/2017)... , April 5, 2017  The Allen Institute for ... Cell Explorer: a one-of-a-kind portal and dynamic digital window ... imaging data, the first application of deep learning to ... stem cell lines and a growing suite of powerful ... for these and future publicly available resources created and ...
(Date:3/30/2017)... ANGELES , March 30, 2017  On April ... Hack the Genome hackathon at Microsoft,s ... exciting two-day competition will focus on developing health and ... Hack the Genome is the ... been tremendous. The world,s largest companies in the genomics, ...
(Date:3/27/2017)... 27, 2017  Catholic Health Services (CHS) has ... Society (HIMSS) Analytics for achieving Stage 6 on ... . In addition, CHS previously earned a place ... an electronic medical record (EMR). "HIMSS ... of EMR usage in an outpatient setting.  This ...
Breaking Biology News(10 mins):
(Date:8/15/2017)... ... 2017 , ... Kapstone Medical is proud to announce that it ... companies and inventors develop and safeguard their latest innovations. The company has grown ... portfolio of clients in the United States and around the world. , Company ...
(Date:8/15/2017)... ... 2017 , ... Kenall, a leader in sealed solid-state lighting, ... sealed and perform efficiently for years. The downlights are ideal for a variety ... such as: hospitals; behavioral health facilities; cleanrooms; containment areas; food and pharmaceutical processing ...
(Date:8/14/2017)... ... August 14, 2017 , ... Every year, millions of ... the antibody community have recently come together to address this antibody crisis and ... , The team at Thermo Fisher Scientific has arranged ...
(Date:8/11/2017)... ... August 11, 2017 , ... A staple in the community for more ... incorporate important key elements including a new digital marketing strategy and updated logo. , ... Bill Miller has partnered with the South Texas Blood & Tissue Center for the ...
Breaking Biology Technology: