5Y53:
reference: Structural Analysis of the Arabidopsis AL2-PAL and PRC1 Complex Provides Mechanistic Insight into Active-to-Repressive Chromatin State Switch., Peng L, Wang L, Zhang Y, Dong A, Shen WH, Huang Y, J Mol Biol. 2018 Oct 19;430(21):4245-4259. doi: 10.1016/j.jmb.2018.08.021. Epub, 2018 Aug 31. PMID: 30176245

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