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. Author manuscript; available in PMC: 2013 Jul 9.
Published in final edited form as: J Proteome Res. 2012 Jan 3;11(2):972–981. doi: 10.1021/pr200735a

Figure 2.

Figure 2

Linear mode MALDI-TOF mass spectra of purified human NAAA containing the α-subunit, β-subunit, and pro-enzyme (α+β) (A). The majority of the pro-enzyme was converted into the α- and β-subunits after 2 hours acid treatment at 37 °C (B). Purified enzyme after 48 hours treatment with PNGase F at 37 °C under native conditions; intense peak at 34810 m/z is that of PNGase F (C).