codon positions
Selection intensity for codon bias.
... Among the codon positions at which the amino acid is conserved in the two species, some positions also use identical codons, whereas other positions use synonymous codons, and the[r] ...
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Why the monophyly of Nymphaeaceae currently remains indeterminate: An assessment based on gene-wise plastid phylogenomics
... the codon positions of these genes is strongly heterogeneous, and that even fine-scale data partitioning is insufficient to account for the conflicting phylogenetic ...third codon positions of ...
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Group specific identification of polioviruses by PCR using primers containing mixed base or deoxyinosine residue at positions of codon degeneracy
... sible codon combinations for NNGHALN, our antisense initi- ating primer (panPV PCR-1) contained either mixed-base res- idues or deoxyinosine residues at degenerate codon ...(at positions 3, 6, and ...
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RNA virus attenuation by codon pair deoptimisation is an artefact of increases in CpG/UpA dinucleotide frequencies
... 3904 codon pairs found in coding sequences ...six positions in the codon pair (Figure ...of codon pair position 6 (CP score was more suppressed if A or U) but with generally minimal and ...
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A space-time process model for the evolution of DNA sequences.
... Either assuming discrete- gamma rates for sites (HKY+dG) or using different rate parameters for codon positions (HKY+C) leads to tremendous improvement in likelihood, sug[r] ...
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Estimating divergence dates and substitution rates in the Drosophila phylogeny.
... second codon positions) and modeling the relative rates of evolution at different sites (model SRD06; Shapiro et ...different codon positions are con- stant across the tree and this will not ...
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The effects of mutation and natural selection on codon bias in the genes of Drosophila.
... In contrast, no G + C correlation was found be- tween introns and third codon positions of fourfold de- generate codons in highly biased genes, consistent with an overriding[r] ...
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Rates of Nucleotide Substitution and Mammalian Nuclear Gene Evolution: Approximate and Maximum-Likelihood Methods Lead to Different Conclusions
... ranges from 20 to 61 with a smaller value indicating a greater positions. Only a small proportion of genes (5%) were bias. GC3 and ENC were computed using the program Codon AT rich (AT3 ⬎ 60%) at third ...
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Evolution of the Hepatitis E Virus Polyproline Region: Order from Disorder
... of codon degeneracy pattern between PPR and the ...of codon properties shows that the expected levels of substitution by codon position are main- tained because of codon degeneracy (30) in the ...
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Particular Distribution of Enterobacter cloacae Strains Isolated from Urinary Tract Infection within Clonal Complexes
... number of base substitutions per site. The analysis involved 107 nucleotide sequences. Codon positions included were 1st+2nd+3rd+Noncoding. All positions containing gaps[r] ...
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Theiler's Murine Encephalomyelitis Virus L* Amino Acid Position 93 Is Important for Virus Persistence and Virus-Induced Demyelination
... initiation codon with an ACG codon (4) or has a stop codon in the L* reading frame (22) with no change in the predicted amino acid sequence of the polyprotein have minimal evidence of virus ...
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Codon Usage in Hemoglobin Coding Genes
... in codon usage preferences in different organisms, meanwhile, codon usage preference not only plays an important regulatory role map at the level of gene expression, but also helps to improve the accuracy ...
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On the Evolution of Codon Volatility
... Figure 2.—Frequency distributions of (observed volatility divided by expected volatility controlled for the amino acid composition of the gene and the genomic average of synonymous codon usage) among all genes ...
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... For instance, if a DNA sequence that should result in an mRNA codon that reads C-C-C is miscopied so that the codon produced reads C-C-G, no change will occur.. As long as the new codon[r] ...
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The Impact of Toxoplasma Gondii on Mitochondrial DNA of Sub-Fertile Men Sperms
... tyrosine codon, changing it from TAT to TAC, Another SNP was found at C3450T position, C to T transition was identified at nt 3450 in ND1 ...proline codon, changing the codon from CCC to CCT, these ...
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Structural features in the Rous sarcoma virus RNA stability element are necessary for sensing the correct termination codon
... The 3 ′ UTR of env was not able to substitute for the RSE after the gag termination codon. Several previous studies indicate that regulation of mRNA stability encoding the env gene product may be unique. First, a ...
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SHIFT: Server for hidden stops analysis in frame shifted translation
... bacterial codon usage table, allows us to predict whether a gene will be efficiently expressed, and may be used to guide the modification of certain codons in order to better adapt the gene to its new ...the ...
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A Major Controversy in Codon-Anticodon Adaptation Resolved by a New Codon Usage Index
... CAI has its own problems, however. Other than those outlined previously (Xia 2007), it often leads to a wrong in- terpretation of tRNA-mediated selection. I illustrate this prob- lem here with the Ala codon ...
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RECESSIVE UAA SUPPRESSORS OF THE YEAST SACCHAROMYCES CEREVISIAE
... In addition to the codon-specific nonsense suppressors, there is another class of nonsense suppressors in yeast designated codon-nonspecific or omnipotent suppressors owing to the [r] ...
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Genome-wide Search for Elements that may Affect Translation in Arabidopsis thaliana.
... experimentally characterized and classified as functional or translated uORFs. The most common way to test if a uORF is functional through wet-lab experiments is site-specific mutagenesis of the start codon of a ...
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