1A7L:
reference: Crystal structure of a dominant B-cell epitope from the preS2 region of hepatitis B virus in the form of an inserted peptide segment in maltodextrin-binding protein., Saul FA, Vulliez-le Normand B, Lema F, Bentley GA, J Mol Biol 1998 Jul 10;280(2):185-92. PMID: 9654443

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