1INE:
reference: How the anti-(metal chelate) antibody CHA255 is specific for the metal ion of its antigen: X-ray structures for two Fab'/hapten complexes with different metals in the chelate., Love RA, Villafranca JE, Aust RM, Nakamura KK, Jue RA, Major JG Jr, Radhakrishnan R, Butler WF, Biochemistry 1993 Oct 19;32(41):10950-9. PMID: 8218161

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