4Q7D:
reference: Structural characterization of anti-inflammatory Immunoglobulin G Fc proteins., Ahmed AA, Giddens J, Pincetic A, Lomino JV, Ravetch JV, Wang LX, Bjorkman PJ, J Mol Biol. 2014 Jul 15. pii: S0022-2836(14)00340-4. doi:, 10.1016/j.jmb.2014.07.006. PMID: 25036289

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