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. 2012 Nov 8;22(1):65–73. doi: 10.1002/pro.2186

Figure 1.

Figure 1

Spin-labeled M2 peptides used in this study. Wild-type sequence corresponds to the M2 protein from influenza strain A/Udorn/72 (H3N2). M2TM (23–46) peptides were spin labeled (indicated by *) at the N-terminus. M2TMC (23–60) peptides were spin labeled at single cysteine sites (underlined). All M2TMC sequences other than the WT sequence have a C50S replacement in addition to the cysteine substitution necessary for spin labeling. The last cysteine-less sequence was used for spin dilution.