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. Author manuscript; available in PMC: 2017 Sep 18.
Published in final edited form as: Molecules. 2017 Aug 15;22(8):E1355. doi: 10.3390/molecules22081355

Figure 2.

Figure 2

The 1H-15N HISQC spectrum recorded at 15 °C for the NH3+ groups in the complex of 15N-labeled Antp homeodomain and unlabeled 15-bp DNA containing a phosphorodithioate at the K46 interaction site. The resonance assignment is based on that for the unmodified DNA complex and unique chemical shift perturbation upon site-specific dithioation (i.e., sulfur substitutions of two non-bridging oxygen atoms) of the DNA phosphate at the K46 interaction site [44].