Table S1: The physicochemical properties of the positive selected amino acids identified in this study. branc hes branc ha M35 family branc he branc hf branc hj M36 family branc ha sit e original amino acid physicochemical properties of original amino acid substituted amino acid A nonpolar, neutral, hydrophobic R/Q K basic polar, positive, alkaline M nonpolar, neutral, hydrophobic R/H V nonpolar, neutral, hydrophobic Q polar, neutral Y polar, neutral Q polar, neutral E G acidic, negative nonpolar, neutral T K/Q 85 E acidic, negative S/T/L 99 A nonpolar, neutral, hydrophobic K/Q 63 84 18 3 26 7 Y A polar, neutral nonpolar, neutral, hydrophobic V/I R G nonpolar, neutral Y polar, neutral 15 0 16 6 20 3 17 7 25 5 57 79 A/R/G P V/I physicochemical properties of substituted amino acid R: basic polar, positive, alkaline; Q: polar, neutral A: hydrophobic R:basic polar, positive, alkaline; G:nonpolar, neutral R:basic polar, positive, alkaline; H:basic polar, positive/neutral,alkaline polar, neutral K:basic polar, positive, alkaline; Q:polar, neutral S:polar,neutral; T: polar, neutral ; L: nonpolar, neutral K: basic polar, positive, alkaline, positive ; Q: polar, neutral V: nonpolar, neutral, hydrophobic basic polar, positive, alkaline nonpolar, neutral, hydrophobic V: nonpolar, neutral, hydrophobic; I:nonpolar, neutral 40 1 K basic polar, positive, alkaline H basic polar, positive/neutral,alkaline branc hb 40 T polar, neutral E acidic, negative A nonpolar, neutral, hydrophobic H basic polar, positive/neutral,alkaline I nonpolar, neutral, hydrophobic A/P branc hg 13 9 22 1 23 2 30 0 51 0 Y polar, neutral W nonpolar, neutral L nonpolar, neutral C nonpolar, neutral W nonpolar, neutral, hydrophobic M nonpolar, neutral, hydrophobic A: nonpolar, neutral, hydrophobic; P: nonpolar, neutral, hydrophobic