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. Author manuscript; available in PMC: 2015 Sep 17.
Published in final edited form as: J Am Chem Soc. 2014 Sep 3;136(37):12920–12928. doi: 10.1021/ja505217w

Figure 5.

Figure 5

(A) UVPD mass spectrum of hexameric insulin (12+). Each red circle represents one monomeric insulin unit. The inset shows the X-ray structure of hexameric insulin, where zinc is colored yellow and the coordinated His10 residues are colored green. (B) UVPD cleavage maps are shown for insulin chain A and insulin chain B for the hexameric insulin complex (12+). (C) Expansion of the m/z region between 3400 and 4000 m/z.