what do these DNA alphabet means ? "-", "+", "."
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fjia304 • 0
@fjia304-20072
Last seen 2.6 years ago

besides basic DNA alphabet, IUPAC code contains other letters. DNA_ALPHABET [1] "A" "C" "G" "T" "M" "R" "W" "S" "Y" "K" "V" "H" "D" "B" "N" "-" "+" "." I can get the meanings of letter but the three ones "-", "+", "." can someone kindly explains?

DNA alphabet • 212 views
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@james-w-macdonald-5106
Last seen 1 day ago
United States

You could just look at the help page for DNA_ALPHABET to find out for yourself:

The DNA alphabet:

     This alphabet contains all letters from the IUPAC Extended Genetic
     Alphabet (see '?IUPAC_CODE_MAP') plus '"-"' (the _gap_ letter),
     '"+"' (the _hard masking_ letter), and '"."' (the _not a letter_
     or _not available_ letter).  It is stored in the 'DNA_ALPHABET'
     predefined constant (character vector).

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