Purity > 90% as determined by SDS-PAGE. MW: 39.5kDa. Full Length of Mature Protein: 22-355aa. N-terminal 6xHis-tagged. Mus musculus (Mouse). Ligand for mbers of the frizzled family of seven transmbrane receptors. Wnt-3 and Wnt-3a play distinct roles in cell-cell signaling during morphogenesis of the developing neural tube.