2JE7:
reference: Insights into the structural basis of the pH-dependent dimer-tetramer equilibrium through crystallographic analysis of recombinant Diocleinae lectins., Nagano CS, Calvete JJ, Barettino D, Perez A, Cavada BS, Sanz L, Biochem J. 2008 Jan 15;409(2):417-28. PMID: 17937659

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