PsiBlast in Big80 (PKU)
We performed a PsiBlast search with 5 iterations and standard settings in the big_80 database. We choose this database to include more distant homologs and have highly similar sequences excluded from the beginning. Below we present the PSSM of PAH of the SNP-sites, gained from the -Q parameter of PsiBlast. Highly conserved (i.e. the score and observed frequency are highest for the match) positions are 76E, 243R, 322A and 408R, unstable (i.e. there is a substitution with higher score or frequency) are 87S, 172Q, 255L, 276M and 337G. At 87S, 158R, 172Q and 276M the score or frequency of the SNP is equal or higher than the score of frequency of the unmutated residue.
In summary, 76E, 243R, 322A and 408R appear conserved, 87S, 158R, 172Q, 255L, 276M and 337G appear likely to be mutated.
Last position-specific scoring matrix computed, weighted observed percentages rounded down, information per position, and relative weight of gapless real matches to pseudocounts A R N D C Q E G H I L K M F P S T W Y V A R N D C Q E G H I L K M F P S T W Y V 76 E 0 0 1 2 -1 2 4 -2 1 -5 -4 0 -2 -5 -3 0 1 -6 -3 -3 8 6 6 9 1 9 30 3 3 0 1 5 1 0 1 6 8 0 1 2 0.48 inf 87 S -1 1 1 0 1 0 -1 -2 1 1 0 0 2 -1 0 -1 -1 4 0 0 5 8 6 5 3 5 4 3 3 8 9 5 5 3 4 5 4 5 3 7 0.08 inf 158 R 0 1 1 -1 -2 1 1 0 -1 -2 -2 1 1 1 1 1 1 -2 -1 -2 8 8 8 0 0 8 8 8 0 0 1 8 8 8 8 8 8 0 0 0 0.14 inf 172 Q 0 0 0 0 2 1 0 0 1 0 0 0 1 0 -2 0 0 -3 -1 0 6 6 6 6 6 6 6 6 6 6 6 6 6 6 0 6 6 0 0 6 0.03 inf 243 R 0 5 -3 -4 -1 0 -1 -3 -2 -1 -2 -1 -2 -3 -4 0 -1 -4 1 4 7 30 0 0 1 5 3 1 1 1 3 3 0 0 0 7 2 0 4 30 0.51 inf 255 L -3 -4 -4 -4 0 -4 -4 -4 -3 1 3 -4 3 6 -4 -3 -1 -2 2 -1 1 0 0 0 2 0 1 1 0 9 30 0 8 35 0 1 4 0 6 1 0.74 inf 276 M -2 0 1 4 -3 0 1 0 0 -2 0 0 0 0 -2 -1 -1 -3 -1 -1 1 3 7 31 0 1 12 6 2 0 10 6 4 4 1 3 1 0 2 6 0.24 inf 322 A 3 1 -2 -2 -2 1 -1 0 -2 -1 -2 0 0 -2 -1 2 0 -3 -2 -1 43 7 0 0 0 7 2 6 0 3 2 3 2 1 1 16 3 0 0 3 0.27 inf 337 G 0 -1 3 3 -3 1 0 0 1 -2 -2 0 -2 -4 2 -1 -1 -4 -3 -2 6 3 22 18 0 6 5 8 5 1 5 6 0 0 13 1 1 0 0 2 0.32 inf 408 R -1 5 -1 1 -4 0 -1 -3 0 -4 -1 4 -3 -4 -3 -2 -1 -4 -3 -3 4 42 2 7 0 2 2 1 3 0 7 23 0 0 0 1 4 0 0 1 0.74 inf K Lambda Standard Ungapped 0.1380 0.3205 Standard Gapped 0.0410 0.2670 PSI Ungapped 0.1490 0.3176 PSI Gapped 0.0456 0.2670