IRS1 and IRS2 are part of the insulin or insulin like growth factor signaling {HEAD ~ pathways}, but also mediate some signals through other growth factors and cytokines, including IFNγ, IL2, IL4, IL7, IL9, IL13 or IL15, growth hormone, prolactin, or {TAIL ~ leptin} 
IRS1 and IRS2 are part of the insulin or insulin like growth factor signaling { HEAD ~ pathways } , but also mediate some signals through other growth factors and cytokines , including IFNγ , IL2 , IL4 , IL7 , IL9 , IL13 or IL15 , growth hormone , prolactin , or { TAIL ~ leptin }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL