2N9C:
reference: Structural characterization of NRAS isoform 5., Markowitz J, Mal TK, Yuan C, Courtney NB, Patel M, Stiff AR, Blachly J, Walker C, Eisfeld AK, de la Chapelle A, Carson WE 3rd, Protein Sci. 2016 May;25(5):1069-74. doi: 10.1002/pro.2916. Epub 2016 Mar 24. PMID: 26947772

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