Secreted frizzled-related protein 4, SFRP4, FRP-4, FRPHE, PYL, sFRP-4
SFRP4, also known as secreted frizzled-related protein4, is a family of vertebrate proteins which contain homology to the ligand-binding domain of the Frizzled family of transmembrane receptors. It is expressed in brain, kidney, lung, ovary, prostate, ma