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  2. DNA and RNA codon tables - Wikipedia

    en.wikipedia.org/wiki/DNA_and_RNA_codon_tables

    The first table—the standard table—can be used to translate nucleotide triplets into the corresponding amino acid or appropriate signal if it is a start or stop codon. The second table, appropriately called the inverse, does the opposite: it can be used to deduce a possible triplet code if the amino acid is known.

  3. BLOSUM - Wikipedia

    en.wikipedia.org/wiki/BLOSUM

    The BLOSUM62 matrix, the amino acids have been grouped and coloured based on Margaret Dayhoff's classification scheme. Positive and zero values have been highlighted. In bioinformatics, the BLOSUM (BLOcks SUbstitution Matrix) matrix is a substitution matrix used for sequence alignment of proteins.

  4. Genetic code - Wikipedia

    en.wikipedia.org/wiki/Genetic_code

    For each codon (square brackets), the amino acid is given by the vertebrate mitochondrial code, either in the +1 frame for MT-ATP8 (in red) or in the +3 frame for MT-ATP6 (in blue). The MT-ATP8 genes terminates with the TAG stop codon (red dot) in the +1 frame. The MT-ATP6 gene starts with the ATG codon (blue circle for the M amino acid) in the ...

  5. 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 ...

  6. Point accepted mutation - Wikipedia

    en.wikipedia.org/wiki/Point_accepted_mutation

    [6] [7] The mutability of an amino acid is the ratio of the number of mutations it is involved in and the number of times it occurs in an alignment. [7] Mutability measures how likely an amino acid is to mutate acceptably. Asparagine, an amino acid with a small polar side chain, was found to be the most mutable of the amino acids. [7]

  7. Synonymous substitution - Wikipedia

    en.wikipedia.org/wiki/Synonymous_substitution

    Protein translation involves a set of twenty amino acids.Each of these amino acids is coded for by a sequence of three DNA base pairs called a codon.Because there are 64 possible codons, but only 20-22 encoded amino acids (in nature) and a stop signal (i.e. up to three codons that do not code for any amino acid and are known as stop codons, indicating that translation should stop), some amino ...

  8. 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).

  9. Proteinogenic amino acid - Wikipedia

    en.wikipedia.org/wiki/Proteinogenic_amino_acid

    §: Values for Asp, Cys, Glu, His, Lys & Tyr were determined using the amino acid residue placed centrally in an alanine pentapeptide. [6] The value for Arg is from Pace et al. (2009). [7] The value for Sec is from Byun & Kang (2011). [8] N.D.: The pKa value of Pyrrolysine has not been reported.