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Mutagenesis of mNeptune Red-Shifts Emission Spectrum to 681-685 nm
Fig 4
Immediate chromophore hydrogen bonds environment of (A) eqFP670 (PDB entry: 4EDS), (B) mNeptune (PDB entry: 3IP2).
Water molecules and hydrogen bonds measured in Å are shown as red spheres and dashed red lines, respectively.
doi: https://doi.org/10.1371/journal.pone.0148749.g004