“Based on the structure of the related serpin alpha 1-antitrypsin, it has been predicted that phosphoserine 344 should undergo a large change in environment upon proteolysis of ovalbumin (Löbermann, H., Tokuoka, R., Deisenhofer, J., and Huber, R. (1984) J. Mol.”
“Proteolysis of ovalbumin produces a small upfield shift (0.15 ppm) of the 31P resonance of phosphoserine 344.”