1XG2:
reference: Structural Basis for the Interaction between Pectin Methylesterase and a Specific Inhibitor Protein., Di Matteo A, Giovane A, Raiola A, Camardella L, Bonivento D, De Lorenzo G, Cervone F, Bellincampi D, Tsernoglou D, Plant Cell 2005 Mar;17(3):849-58. Epub 2005 Feb 18. PMID: 15722470

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