Interleukin-6 (IL-6) plays an important role in immune responses and signals via two different pathways. When IL-6 binds to its non-signalling membrane-bound receptor (IL-6R), a non-covalent dimer of the ubiquitous interleukin-6 signal transducer gp130 is recruited to initiate intracellular signalling cascades. This so-called classical signalling pathway is restricted to cells expressing the me...
