replace_identified_by_x function

Replace identified positions in protein sequence by "x"

Helper function for the calculation of sequence coverage, replaces identified positions with an "x" within the protein sequence.

replace_identified_by_x(sequence, positions_start, positions_end)

Arguments

• sequence: a character value that contains the protein sequence.
• positions_start: a numeric vector of start positions of the identified peptides.
• positions_end: a numeric vector of end positions of the identified peptides.

Returns

A character vector that contains the modified protein sequence with each identified position replaced by "x".