6S9V:
reference: Structural Comparison of a Promiscuous and a Highly Specific Sucrose 6(F)-Phosphate Phosphorylase., Franceus J, Capra N, Desmet T, Thunnissen AWH, Int J Mol Sci. 2019 Aug 11;20(16). pii: ijms20163906. doi: 10.3390/ijms20163906. PMID: 31405215

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