1T2H:
reference: Contribution of single tryptophan residues to the fluorescence and stability of ribonuclease sa., Alston RW, Urbanikova L, Sevcik J, Lasagna M, Reinhart GD, Scholtz JM, Pace CN, Biophys J 2004 Dec;87(6):4036-47. Epub . PMID: 15377518

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