Codon optimality, bias and usage in translation and mRNA decay
نویسندگان
چکیده
منابع مشابه
The DEAD-Box Protein Dhh1p Couples mRNA Decay and Translation by Monitoring Codon Optimality
A major determinant of mRNA half-life is the codon-dependent rate of translational elongation. How the processes of translational elongation and mRNA decay communicate is unclear. Here, we establish that the DEAD-box protein Dhh1p is a sensor of codon optimality that targets an mRNA for decay. First, we find mRNAs whose translation elongation rate is slowed by inclusion of non-optimal codons ar...
متن کاملCodon optimality controls differential mRNA translation during amino acid starvation.
It is common wisdom that codon usage bias has evolved in the selection for efficient translation, in which highly expressed genes are encoded predominantly by optimal codons. However, a growing body of evidence suggests regulatory roles for non-optimal codons in translation dynamics. Here we report that in mammalian cells, non-optimal codons play a critical role in promoting selective mRNA tran...
متن کاملMore Codon Usage Bias
χ measure. In statistics, the χ statstic computes how different the distribution of values is from a uniform distribution. Let d = c1 . . . cN be a DNA string in nucleotide alphabet, and let L be the total number of codons in d that are not Methinine or Tryptophan (the number does include the stop codons though). Let a be a k-degenerate amino acid, and let La be the total number of codons codin...
متن کاملdomestication and foreignization in children literature translation
این پایان نامه به بررسی بومی سازی و بیگانه سازی در ادبیات کودکان مخصوصا زانر فانتزی می پردازد. در این پایان نامه ترجمه 14 کتاب داستان فانتزی برای سه گروه سنی کودکان بر اساس مدل ونوتی یعنی بومی سازی و بیگانه سازی مقاسه شدندکه در نتیجه برای سه گروه سنی از هر دو استراتزی توسط مترجمان در ترجمه کلمات فرهنگی استفاده شده است.
Factors Influencing Codon Usage Bias in Genomes
O código genético é degenerado, isto é, o mesmo amino ácido pode ser codificado por vários codons. Apesar de codificarem o mesmo amino ácido, estes codons sinônimos não são utilizados da mesma forma em genomas diferentes, e mesmo em um único genoma o padrão de uso dos codons sinônimos pode variar muito entre os genes, ou ainda ao longo de um único gene. Com a recente introdução de seqüências ge...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Reviews Molecular Cell Biology
سال: 2017
ISSN: 1471-0072,1471-0080
DOI: 10.1038/nrm.2017.91