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. Author manuscript; available in PMC: 2019 Oct 30.
Published in final edited form as: Chem Phys Lipids. 2019 Jan 29;219:28–35. doi: 10.1016/j.chemphyslip.2019.01.009

Fig. 7. Association of 4F and apoA-I.

Fig. 7.

Crosslinking studies show that mixing 4F with apoA-I results in the formation of a larger particle (Panel A). MS/MS fragmentation spectrum of precursor ion 637.30 m/z representing a tryptic fragment of the acetylated 4F peptide. The collision-induced dissociation fragmentation clearly demonstrates the sequence of Ac-DWFK with b and y ion coverage. The b2 ion of 344.124 m/z shows the addition of 42 Daltons of the acetyl group attached to the DW sequence at the N-terminus of the fragment (Panel B).