Cloning, mutagenesis, and structural analysis of human pancreatic alpha-amylase expressed in Pichia pastoris.
Rydberg, E.H., Sidhu, G., Vo, H.C., Hewitt, J., Cote, H.C., Wang, Y., Numao, S., MacGillivray, R.T., Overall, C.M., Brayer, G.D., Withers, S.G.(1999) Protein Sci. 8: 635-643
- PubMed: 10091666 
- DOI: 10.1110/ps.8.3.635
- PubMed Abstract: 
Human pancreatic alpha-amylase (HPA) was expressed in the methylotrophic yeast Pichia pastoris and two mutants (D197A and D197N) of a completely conserved active site carboxylic acid were generated. All recombinant proteins were shown by electrospray ...