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Structural analysis of bfVFP crystal. (a) Chemical structure of the chromophore found in bfVFP: oxidized tyrosine 68 in cis conformation. (b) Contrary to lanFP10A2 (shown in green), the chromophore‐forming triad in bfVFP (shown in purple) forms no H‐bonds with either Arg97 or Glu219. (c) The position of the bfVFP chromophore is stabilized by two H‐bonds between the p‐hydroxyphenyl ring and the NH group of His148 (2.8 Å) and the C═O of Thr150 (2.5 Å)
