Skip to main content
. Author manuscript; available in PMC: 2017 Nov 23.
Published in final edited form as: J Am Chem Soc. 2016 Nov 14;138(46):15157–15166. doi: 10.1021/jacs.6b06848

Figure 4.

Figure 4

Deimino-antipain from S. albulus NRRL B-3066. (A) MALDI-TOF MS of bacterial extract, either unreacted (top) or labeled with 1 (bottom). The region containing the labeled peak is shown magnified and each isotope peak is colored red to display the unique isotopic pattern. The intensity of peak m/z 655 Da (unknown) was reduced in the labeled spectrum, resulting in other background peaks appearing more intense. (B) Structure of deimino-antipain with carbon numbering shown. (C) Structures of previously known antipain family members.