H WEIL970102 D Difference matrix obtained by subtracting the BLOSUM62 from the WAC matrix (Wei et al., 1997) R PMID:9390315 A Wei, L., Altman, R.B. and Chang, J.T. T Using the radial distributions of physical features to compare amino acid environments and align amino acid sequences. J Pac. Symp. Biocomput. 1997 5, 465-476 (1997) M rows = ARNDCQEGHILKMFPSTWYV, cols = ARNDCQEGHILKMFPSTWYV 0 0 -1 2 0 -2 0 1 -1 -2 0 2 3 1 -5 1 -1 1 -1 3 -1 -2 -1 0 -2 2 -2 -1 -1 1 0 -1 3 2 0 -2 2 0 -1 0 3 0 -1 1 -4 1 1 2 -1 1 3 -1 2 2 0 1 1 2 1 1 2 0 3 2 -1 0 0 0 0 0 1 -1 -2 1 1 1 0 -1 2 1 2 2 2 1 1 3 2 1 0 1 -1 2 1 2 -1 2 3 -1 1 1 0 1 1 2 -2 1 2 2 0 2 1 0 2 2 3 3 1 3 4 -3 -1 0 0 -1 1 0 -2 0 0 1 1 0 1 0 1 0 0 1 1 0 1 2 0 2 1 1 1 1 1 0 1 0 -1 3 3 3 1 2 2 1 0 2 3 3 1 3 -1 4 2 1 -7 2 1 2 0 2 2 -2 1 -2 1 1 0 1 0 2 1 1 -1 -3 1 1 2 0 1 1 -2 1 2 -1 0 -1 0 1 2 1 0 3 1 0 //