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. 2021 Jul 29;9:735149. doi: 10.3389/fchem.2021.735149

FIGURE 2.

FIGURE 2

(A–B) Analytical HPLC and mass analysis of SelF(1–41)-MPAA (1) and SelF(42–74)-MPAA (2). 1: observed mass 4,593.0 Da, calcd 4,593.0 Da (average isotopes); 2: obsd. mass 4,067.0 Da, calcd. mass 4,066.9 Da (average isotopes). (C) Overexpression and Ulp1 cleavage to afford SelF(75–134) (3). (D) Analytical HPLC and mass analysis of SelF(75–134) (3) with the obsd. mass 6,965.7 Da, calcd. mass 6,965.7 Da (average isotopes). Detailed reaction conditions in the Materials and Methods section.