نتایج جستجو برای: rna structure

تعداد نتایج: 1783253  

2008
Tamar Schlick

Highlights of the IMA workshop RNA in Biology, Bioengineering, and Biotechnology are summarized, including recent developments in RNA secondary structure prediction and RNA design, innovative mathematical constructs for RNA structure, bioinformatics advances in RNA structure analysis and prediction, and experimental progress in RNA folding and imaging. In small things considered is the world re...

Journal: :Briefings in bioinformatics 2016
Youhuang Bai Xiaozhuan Dai Andrew P. Harrison Caroline E. Johnston Ming Chen

RNA structure plays a crucial role in gene maturation, regulation and function. Determining the form and frequency of RNA folds is essential for a better understanding of how RNA exerts its functions. Low-throughput studies have focused on RNA primary sequences and expression levels, but with an emphasis on relatively small numbers of transcripts. However, with the recent advent of high-through...

2013
Clara Fannjiang

RNA was first explored and understood as a messenger molecule, relaying DNA encodings of amino acids during protein synthesis. Beyond messenger RNA, however, a class of RNA known as non-coding RNA plays fundamental roles in transcriptional and translational gene regulation. As the biological mantra goes, form fits function, and these regulatory roles depend on the 3-D structure of the RNA molec...

Journal: :Journal of virology 2008
Sheng Wang Leyla Mortazavi K Andrew White

Subgenomic (sg) mRNAs are small viral messages that are synthesized by polycistronic positive-strand RNA viruses to allow for the translation of certain viral proteins. Tombusviruses synthesize two such sg mRNAs via a premature termination mechanism. This transcriptional process involves the viral RNA-dependent RNA polymerase terminating minus-strand RNA synthesis prematurely at internal RNA si...

Journal: :Cell 2016
Caleb Weinreb Adam J. Riesselman John B. Ingraham Torsten Gross Chris Sander Debora S. Marks

Non-coding RNAs are ubiquitous, but the discovery of new RNA gene sequences far outpaces the research on the structure and functional interactions of these RNA gene sequences. We mine the evolutionary sequence record to derive precise information about the function and structure of RNAs and RNA-protein complexes. As in protein structure prediction, we use maximum entropy global probability mode...

2013
Shreyas S. Athavale J. Jared Gossett Jessica C. Bowman Nicholas V. Hud Loren Dean Williams Stephen C. Harvey

Satellite tobacco mosaic virus (STMV) is a T = 1 icosahedral virus with a single-stranded RNA genome. It is widely accepted that the RNA genome plays an important structural role during assembly of the STMV virion. While the encapsidated form of the RNA has been extensively studied, less is known about the structure of the free RNA, aside from a purported tRNA-like structure at the 3' end. Here...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه قم - دانشکده علوم پایه 1389

موضوع این پایان نامه در حوزه ریاضیات زیستی قرار دارد که بر مدل سازی طبیعی فرآیند های زیستی با استفاده از ابزارها و روش های ریاضی مبتنی است. کاربرد ریاضیات در زیست شناسی تاریخ طولانی دارد اما اخیراّّ به دلایل زیر سروصدایی را در بین علاقمندان خود ایجاد کرده است: 1- پیشرفت های اخیر ابزارهای ریاضی نظیر تئوری های بی نظمی، که به فهم مکانیزم های پیچیده و غیرخطی در زیست شناسی کمک زیادی می کند. 2- افز...

ژورنال: :genetics in the 3rd millennium 0
امین اله طهماسبی aminalah tahmasebi دانشجوی ارشد دانشگاه تهران مریم زنگنه maryam zangeneh

خاموشی rna روند دفاعی قدرتمندی در گیاهان، برای مقابله با ویروس های گیاهی است. این روند سبب تجزیه rna ویروس می شود و در نهایت، غلظت ویروس و ایجاد علائم در گیاه کاهش می یابد. اما بسیاری از ویروس ها می توانند این روند را مختل کنند. این ویروس ها پروتئین هایی را بیان می کنند که خاموشی ایجادشده توسط rnaهای کوچک تداخلی (sirna) و میکروrnaها (mirna) را سرکوب می کنند و غلظت ویروس را افزایش می دهند. اغلب ...

Journal: :modares journal of medical sciences: pathobiology 2009
mehdi forouzandeh saeedeh askarian

objective: rna interference (rnai) is the most potent technique for gene silencing in eukaryotic cellular system at transcriptomic level. genetic disorders and cancers are important targets for therapeutic development of this technique. in order to bypass the temporary dpwnregulation by sirna, a new generation of shrna named shrnamir has developed. silencing construct with structure similar to ...

Journal: :Environmental Health Perspectives 1996
Mugdha Khaladkar Vivian Bellofatto Jason T. L. Wang Bin Tian

RADAR is a web server that provides a multitude of functionality for RNA data analysis and research. It can align structure-annotated RNA sequences so that both sequence and structure information are taken into consideration during the alignment process. This server is capable of performing pairwise structure alignment, multiple structure alignment, database search and clustering. In addition, ...

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