Engel, M E Signal transduction by transforming growth factor-beta: a cooperative paradigm with extensive negative regulation. [electronic resource] - Journal of cellular biochemistry. Supplement 1998 - 111-22 p. digital Publication Type: Journal Article; Review ISSN: 0733-1959 Subjects--Topical Terms: AnimalsDown-Regulation--physiologyHumansReceptors, Transforming Growth Factor beta--physiologySignal Transduction--physiologyTransforming Growth Factor beta--physiology