3WPU:
reference: Enhancing thermostability and the structural characterization of Microbacterium saccharophilum K-1 beta-fructofuranosidase., Ohta Y, Hatada Y, Hidaka Y, Shimane Y, Usui K, Ito T, Fujita K, Yokoi G, Mori M, Sato S, Miyazaki T, Nishikawa A, Tonozuka T, Appl Microbiol Biotechnol. 2014 Aug;98(15):6667-77. doi:, 10.1007/s00253-014-5645-3. Epub 2014 Mar 15. PMID: 24633372

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