4J5K:
reference: Contribution of hydrogen bonds to protein stability., Pace CN, Fu H, Lee Fryar K, Landua J, Trevino SR, Schell D, Thurlkill RL, Imura S, Scholtz JM, Gajiwala K, Sevcik J, Urbanikova L, Myers JK, Takano K, Hebert EJ, Shirley BA, Grimsley GR, Protein Sci. 2014 May;23(5):652-61. doi: 10.1002/pro.2449. Epub 2014 Mar 25. PMID: 24591301

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