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Two-dimensional 1H-15N HSQC spectra of (A) PcrG and (B) truncated PcrG9–76. (C) Assigned 2D 1H-15N HSQC spectrum of PcrG9–76. Overlapped peaks are indicated with asterisk. The W37 side chain peak is not shown. Residues 77–84 (G77SENLYFQ84) are cloning artifacts.
