3KF3:
reference: Structural and kinetic analysis of Schwanniomyces occidentalis invertase reveals a new oligomerization pattern and the role of its supplementary domain in substrate binding., Alvaro-Benito M, Polo A, Gonzalez B, Fernandez-Lobato M, Sanz-Aparicio J, J Biol Chem. 2010 Apr 30;285(18):13930-41. Epub 2010 Feb 24. PMID: 20181943

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