sentences:  The complex of these two proteins then associates with gp130.This complex of 3 proteins then homodimerizes to form a hexameric complex which can produce downstream signals.There are many other proteins which associate with gp130, such as cardiotrophin 1 (CT-1), leukemia inhibitory factor (LIF), ciliary neurotrophic factor (CNTF), oncostatin M (OSM), and IL-11.