Urocortin II: a member of the corticotropin-releasing factor (CRF) neuropeptide family that is selectively bound by type 2 CRF receptors. - Reyes,TM.; Lewis,K.; Perrin,MH.; Kunitake,KS.; Vaughan,J.; Arias,CA.; Hogenesch,JB.; Gulyas,J.; Rivier,J.; Vale,WW.; Sawchenko,PE. (Proc Natl Acad Sci USA, 2001)