Figure 7

nESI mass spectrum for 20 μM WT MAGE-A4.
WT MAGE-A4 sprayed from aqueous solution containing 50 mM Ammonium Acetate at pH 6.8. The protein exhibits a wide, multimodal, monomeric charge state range 10 ≤ z ≤ 44. Several charge states are denoted with single spheres along with their respective charge.