3AW6:
reference: A few low-frequency normal modes predominantly contribute to conformational responses of hen egg white lysozyme in the tetragonal crystal to variations of molecular packing controlled by environmental humidity., Takayama Y, Nakasako M, Biophys Chem. 2011 Dec;159(2-3):237-46. Epub 2011 Jul 13. PMID: 21802827

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