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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2016 Sep 23;28(1):96–109. doi: 10.1007/s13361-016-1496-8

Figure 1.

Figure 1

ESI mass spectra, obtained under nondenaturing conditions, of (a) FGF1 itself; (b) FGF1 incubated with HS dp4c at 2:1 ratio; (c) FGF1 incubated with HS dp4b at 2:1 ratio; (d) FGF1 incubated with HS dp4a at 2:1 ratio. Associating of two FGF1s by one HS (2:1 FGF1–HS complex) were observed only for the HS dp4a containing the high affinity binding motif