Darnell J E
Rockefeller University, New York, New York 10021, USA.
Recent Prog Horm Res. 1996;51:391-403; discussion 403-4.
Polypeptides redirect cells by causing immediate changes in gene transcription. A direct connection between polypeptide receptors on the cell surface and genes in the nucleus has been provided by the recognition of the JAK-STAT pathway. Results leading to our present understanding of this pathway are reviewed.