نتایج جستجو برای: rare codons
تعداد نتایج: 246693 فیلتر نتایج به سال:
The combined overlap extension PCR (COE-PCR) method developed in this work combines the strengths of the overlap extension PCR (OE-PCR) method with the speed and ease of the asymmetrical overlap extension (AOE-PCR) method. This combined method allows up to 6 base pairs to be mutated at a time and requires a total of 40-45 PCR cycles. A total of eight mutagenesis experiments were successfully ca...
This year marks the 48th anniversary of Francis Crick's seminal work on the origin of the genetic code, in which he first proposed the "frozen accident" hypothesis to describe evolutionary selection against changes to the genetic code that cause devastating global proteome modification. However, numerous efforts have demonstrated the viability of both natural and artificial genetic code variati...
Nonsense mutations introduce premature termination codons and underlie 11% of genetic disease cases. High concentrations of aminoglycosides can restore gene function by eliciting premature termination codon readthrough but with low efficiency. Using a high-throughput screen, we identified compounds that potentiate readthrough by aminoglycosides at multiple nonsense alleles in yeast. Chemical op...
MOTIVATION TTA Lynx is a web-based service for finding, assessing and comparing coding sequences that contain TTA codons. This codon is most notable for being a regulatory switch that governs different aspects of the physiology of several GC-rich, Gram-positive bacteria belonging to genus Streptomyces, prolific producers of clinically important natural products. The ever-increasing pace of geno...
In the evolution of highly conserved genes, a few "synonymous" substitutions at third bases that would not alter the protein sequence are forbidden or very rare, presumably as a result of functional requirements of the gene or the messenger RNA. Another 10% or 20% of codons are significantly less variable by synonymous substitution than are the majority of codons. The changes that occur at the ...
Parasite genes often use codons which are rarely used in the highly expressed genes of Escherichia coli, possibly resulting in translational stalling and lower yields of recombinant protein. We have constructed the ``RIG'' plasmid to overcome the potential codon-bias problem seen in Plasmodium genes. RIG contains the genes that encode three tRNAs (Arg, Ile, Gly), which recognise rare codons fou...
103 INTRODUCTION 104 MATERIALS AND METHODS 106 Materials 106 Construction of the recombinant expression vector 106 Exchange of the rare codons present in the hNK2R for expression in E.coli 107 Expression of the MBP-hNK2R in E.coli 110 Analysis of the expression of the MBP-hNK2R fusion protein in E.coli 111 Purification of the MBP-hNK2R fusion protein 111 Cleavage of the MBP-hNK2R fusion protein...
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