Thousands of protein linear motif classes may still be undiscovered
Fig 5
Number of potential linear motif classes as a function of protein alphabet size.
(Left) Number of potential linear motif classes for different numbers of motif-discriminating positions, as a function of alphabet size. Black: 0 positions. White: 1 position. Red: 2 positions. Blue: 3 positions. Green: 4 positions. The dashed vertical line highlights the results for an alphabet size of 33 amino acids. (Right) Quotient of the number of potential linear motif classes for alphabet sizes of 33 and 20, as a function of the number of motif-discriminating positions.