This gene encodes a member of the TGF-beta family of proteins. A similar secreted protein in mouse plays a role in left-right asymmetry determination of organ systems during development. Alternative processing of this protein can yield three different products. This gene is closely linked to both a related family member and a related pseudogene.
Left-right determination factor 1; Left-right determination factor B; left-right determination, factor B; Lefty protein; Protein lefty-1; Protein lefty-B; Stimulated by retinoic acid gene 3 protein; TGF-beta-4; Transforming growth factor beta-4; UNQ278/PRO317, LEFTB, LEFTYB, left-right determination factor B