Affimer proteins inhibit immune complex binding to FcγRIIIa with high specificity through competitive and allosteric modes of action by Robinson, JI, Baxter, EW, Owen, RL, Thomsen, M, Tomlinson, DC, Waterhouse, MP, Win, SJ, Nettleship, JE, Tiede, C, Foster, RJ, Owens, RJ, Fishwick, CWG, Harris, SA, Goldman, A, McPherson, MJ, Morgan, AW