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. 2021 Jun 30;12:668897. doi: 10.3389/fpls.2021.668897

FIGURE 4.

FIGURE 4

MS spectra of PAP9. Deconvoluted spectra of PAP9-6His (A) and 15N,13C-6His-PAP9 (B). Under denaturing conditions the accurate mass of PAP9-6His was 30,848 and 34,670 Da for 15N,13C-6His-PAP9. (C) Native MS spectrum of the PAP9-6His. It formed two distinct oligomers, such as monomers (1mer, 30,848 ± 1 Da) and dimers (2mers, 61,697 ± 2 Da).