1 PSW 3-(sulfanylselanyl)-L-alanine 1.000 2 30F (2z)-2-amino-3-selanylprop-2-enoic acid 0.875 3 SEC Selenocysteine 0.875 4 T9E Selenothreonine 0.778 5 UOX 3-(oxido-lambda~4~-selanyl)-L-alanine 0.778 6 ALA Alanine 0.750 7 ALV (2s)-2-aminopropane-1,1-diol 0.750 8 DAL D-alanine 0.750 9 DHA 2-amino-acrylic acid 0.750 10 NAK Amino-acrylate 0.750 11 SLP 3-selanylpropanoic acid 0.750 12 SE7 2-amino-3-selenino-propionic acid 0.700