2GN7:
reference: Interplay Between Metal Binding and cis/trans Isomerization in Legume Lectins: Structural and Thermodynamic Study of P. angolensis Lectin., Garcia-Pino A, Buts L, Wyns L, Loris R, J Mol Biol. 2006 Aug 4;361(1):153-67. Epub 2006 Jun 21. PMID: 16824540

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