4V50:
reference: Structural basis for mRNA and tRNA positioning on the ribosome., Berk V, Zhang W, Pai RD, Cate JH, Proc Natl Acad Sci U S A. 2006 Oct 24;103(43):15830-4. Epub 2006 Oct 12. PMID: 17038497

This OCA Structure page
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