5GQU:
reference: Crystallization and crystallographic analysis of branching enzymes from Cyanothece sp. ATCC 51142., Hayashi M, Suzuki R, Colleoni C, Ball SG, Fujita N, Suzuki E, Acta Crystallogr F Struct Biol Commun. 2015 Aug;71(Pt 8):1109-13. doi:, 10.1107/S2053230X1501198X. Epub 2015 Jul 29. PMID: 26249708

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