Claim: Designated as CD334, fibroblast growth factor receptor 4 is a protein (a large biomolecule, or macromolecule, consisting of one or more long chains of amino acid residues) in all mammals that is encoded by the FGFR4 gene.
Evidence: Fibroblast growth factor receptor 4 is a protein that in humans is encoded by the FGFR4 gene.