Structure of human endo-α-1,2-mannosidase (MANEA), an antiviral host-glycosylation target per Sobala, Ł, Fernandes, PZ, Hakki, Z, Thompson, AJ, Howe, JD, Hill, M, Zitzmann, N, Davies, S, Stamataki, Z, Butters, TD, Alonzi, DS, Williams, SJ, Davies, GJ