2VAL:
reference: Crystal structure of an Escherichia coli tRNA(Gly) microhelix at 2.0 A resolution., Forster C, Brauer AB, Perbandt M, Lehmann D, Furste JP, Betzel Ch, Erdmann VA, Biochem Biophys Res Commun. 2007 Nov 23;363(3):621-5. Epub 2007 Sep 14. PMID: 17888869

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