500 A PHE 0.88 1.00 0.66 1.0 502 A TRP 0.49 0.99 0.68 1.0 503 A ILE 0.65 0.64 0.70 1.0 504 A ASN 0.32 0.39 0.78 1.0 506 A LEU 0.59 0.70 0.76 1.0 510 A GLY 0.50 0.41 0.85 1.0 511 A TRP 0.74 0.99 0.79 1.0 513 A TYR 0.85 0.80 0.71 1.0 515 A VAL 0.63 0.56 0.62 1.0 610 A SER 0.33 0.36 0.81 1.0 611 A ASN 0.75 0.39 0.85 1.0 612 A ALA 0.49 0.38 0.88 1.0 615 A GLY 0.65 0.41 0.87 1.0 616 A ALA 0.46 0.38 0.83 1.0 617 A HIS 0.42 0.60 0.80 1.0 619 A TYR 0.47 0.80 0.63 1.0