transforming growth factor beta receptor binding type I transforming growth factor beta receptor binding GO:0005120 TGF-beta type I binding GO:0005103 type I TGF-beta binding thickveins binding sax ligand transforming growth factor beta receptor type I binding baboon receptor ligand saxophone ligand baboon ligand babo binding thickveins ligand sax binding babo ligand molecular_function GO:0005116 tkv ligand Binding to a type I transforming growth factor beta receptor. GO:0034713 transforming growth factor beta ligand binding to type I receptor tkv binding baboon binding saxophone binding