5HYD:
reference: Solving the crystal structure of human calcium-free S100Z: the siege and conquer of one of the last S100 family strongholds., Calderone V, Fragai M, Gallo G, Luchinat C, J Biol Inorg Chem. 2017 Jan 10. doi: 10.1007/s00775-017-1437-4. PMID: 28074300

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