4LBY:
reference: Identifying ligand-binding hot spots in proteins using brominated fragments., Groftehauge MK, Therkelsen MO, Taaning R, Skrydstrup T, Morth JP, Nissen P, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2013 Sep;69(Pt 9):1060-5. doi: , 10.1107/S1744309113018551. Epub 2013 Aug 19. PMID: 23989163

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