4BY6:
reference: Structure and RNA-binding properties of the Not1-Not2-Not5 module of the yeast Ccr4-Not complex., Bhaskar V, Roudko V, Basquin J, Sharma K, Urlaub H, Seraphin B, Conti E, Nat Struct Mol Biol. 2013 Oct 13. doi: 10.1038/nsmb.2686. PMID: 24121231

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