Secreted frizzled receptor (FZD4)-Fc fusion protein and WNT receptor, also known as FZD4, GenBank Accession No. BC_114527, a.a. 37-180, expressed in a HEK293 cell expression system. MW = 42.9 kDa (monomer). This protein runs at a higher apparent M.W. by SDS-PAGE due to glycosylation.