Secreted frizzled receptor (FZD1)-Fc fusion protein and WNT receptor, also known as FZD1, GenBank Accession No.BC_051271, a.a. 73-253, expressed in a HEK293 cell expression system. MW = 46.4 kDa (monomer). This protein runs at a higher apparent M.W. by SDS-PAGE due to glycosylation.