. "\"A series of molecular signals initiated by the binding of an extracellular ligand to a transforming growth factor beta receptor on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.\" [GOC:BHF, GOC:mah, GOC:signaling]" . . "transforming growth factor beta receptor signaling pathway" . "TGF-beta receptor signaling pathway" . "TGF-beta receptor signalling pathway" . "TGFbeta receptor signaling pathway" . "TGFbeta receptor signalling pathway" . "transforming growth factor beta receptor signalling pathway" . "Reactome:REACT_101958 \"Signaling by TGF beta, Gallus gallus\"" . "Reactome:REACT_106912 \"Signaling by TGF beta, Rattus norvegicus\"" . "Reactome:REACT_109530 \"Signaling by TGF beta, Canis familiaris\"" . "Reactome:REACT_114882 \"Signaling by TGF beta, Caenorhabditis elegans\"" . "Reactome:REACT_28222 \"Signaling by TGF beta, Mus musculus\"" . "Reactome:REACT_28776 \"Signaling by TGF beta, Taeniopygia guttata\"" . "Reactome:REACT_32950 \"Signaling by TGF beta, Danio rerio\"" . "Reactome:REACT_6844 \"Signaling by TGF beta, Homo sapiens\"" . "Reactome:REACT_78661 \"Signaling by TGF beta, Sus scrofa\"" . "Reactome:REACT_79650 \"Signaling by TGF beta, Xenopus tropicalis\"" . "Reactome:REACT_86676 \"Signaling by TGF beta, Bos taurus\"" . "Reactome:REACT_96921 \"Signaling by TGF beta, Drosophila melanogaster\"" . . .