1KIQ:
reference: Hydrogen bonding and solvent structure in an antigen-antibody interface. Crystal structures and thermodynamic characterization of three Fv mutants complexed with lysozyme., Fields BA, Goldbaum FA, Dall'Acqua W, Malchiodi EL, Cauerhff A, Schwarz FP, Ysern X, Poljak RJ, Mariuzza RA, Biochemistry 1996 Dec 3;35(48):15494-503. PMID: 8952503

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