5ZQ3:
reference: Structural Insights into Non-canonical Ubiquitination Catalyzed by SidE., Wang Y, Shi M, Feng H, Zhu Y, Liu S, Gao A, Gao P, Cell. 2018 May 17;173(5):1231-1243.e16. doi: 10.1016/j.cell.2018.04.023. Epub, 2018 May 3. PMID: 29731171

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