Figure 5.
Tryptic peptides of Mb detected as peptide-water adducts in (A) lyophilized Mb-SDA, (B) Mb-SDA solution, (C) Mb-SDA lyophilized with raffinose, (D) Mb-SDA solution with raffinose, (E) Mb-SDA lyophilized with Gdn HCl and (F) Mb-SDA solution with Gdn HCl formulations. Tryptic peptides of Mb detected as peptide-raffinose adducts in (G) Mb-SDA lyophilized with raffinose and (H) Mb-SDA solution with raffinose formulations. Adducts were mapped irrespective of the number of water or raffinose molecules linked. The α-helices from N-terminus to C-terminus in Mb are represented by cylinders labeled A to H respectively. The molecular mass of tryptic fragments 63–77 and 64–78; 63–78 and 64–79 are identical and cannot be differentiated.