2BZA:
reference: Non-Boltzmann thermodynamic integration (NBTI) for macromolecular systems: relative free energy of binding of trypsin to benzamidine and benzylamine., Ota N, Stroupe C, Ferreira-da-Silva JM, Shah SA, Mares-Guia M, Brunger AT, Proteins 1999 Dec 1;37(4):641-53. PMID: 10651279

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