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  2. DNA and RNA codon tables - Wikipedia

    en.wikipedia.org/wiki/DNA_and_RNA_codon_tables

    A codon table can be used to translate a genetic code into a sequence of amino acids. [1] [2] The standard genetic code is traditionally represented as an RNA codon table, because when proteins are made in a cell by ribosomes, it is messenger RNA (mRNA) that directs protein synthesis. [2] [3] The mRNA sequence is determined by the sequence of ...

  3. Template:Codon table - Wikipedia

    en.wikipedia.org/wiki/Template:Codon_table

    The two other start codons listed by table 1 (GTG and TTG) are rare in eukaryotes. [3] Prokaryotes have less strigent start codon requirements; they are described by NCBI table 11 . B ^ ^ ^ The historical basis for designating the stop codons as amber, ochre and opal is described in an autobiography by Sydney Brenner [ 4 ] and in a historical ...

  4. Genetic code - Wikipedia

    en.wikipedia.org/wiki/Genetic_code

    Grouping of codons by amino acid residue molar volume and hydropathicity. A more detailed version is available. Axes 1, 2, 3 are the first, second, and third positions in the codon. The 20 amino acids and stop codons (X) are shown in single letter code. Degeneracy is the redundancy of the genetic code. This term was given by Bernfield and ...

  5. Protein sequencing - Wikipedia

    en.wikipedia.org/wiki/Protein_sequencing

    Protein sequence interpretation: a scheme new protein to be engineered in a yeast. It is often desirable to know the unordered amino acid composition of a protein prior to attempting to find the ordered sequence, as this knowledge can be used to facilitate the discovery of errors in the sequencing process or to distinguish between ambiguous results.

  6. File : Common Periodic Table of Codons & Amino Acids.jpg

    en.wikipedia.org/wiki/File:Common_Periodic_Table...

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  7. Saturation mutagenesis - Wikipedia

    en.wikipedia.org/wiki/Saturation_mutagenesis

    Different degenerate codons can be used to encode sets of amino acids. [1] Because some amino acids are encoded by more codons than others, the exact ratio of amino acids cannot be equal. Additionally, it is usual to use degenerate codons that minimise stop codons (which are generally not desired). Consequently, the fully randomised 'NNN' is ...

  8. List of genetic codes - Wikipedia

    en.wikipedia.org/wiki/List_of_genetic_codes

    The translation table list below follows the numbering and designation by NCBI. [2] Four novel alternative genetic codes were discovered in bacterial genomes by Shulgina and Eddy using their codon assignment software Codetta, and validated by analysis of tRNA anticodons and identity elements; [ 3 ] these codes are not currently adopted at NCBI ...

  9. Codon usage bias - Wikipedia

    en.wikipedia.org/wiki/Codon_usage_bias

    Codon usage bias in Physcomitrella patens. Codon usage bias refers to differences in the frequency of occurrence of synonymous codons in coding DNA.A codon is a series of three nucleotides (a triplet) that encodes a specific amino acid residue in a polypeptide chain or for the termination of translation (stop codons).

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