Cloning, sequence and expression of two distinct human interleukin-1 complementary DNAs

Abstract
Two distinct but distantly related complementary DNA [cDNA] encoding proteins sharing human interleukin 1 (IL-1) activity (termed IL-1.alpha. and IL-1.beta.) were isolated from a macrophage cDNA library. The primary translation products of the genes were 271 and 269 amino acids long, although expression in Escherichia coli of the carboxy-terminal 159 and 153 amino acids produced IL-1 biological activity. [The effect of gene controlon IL expression in immunity and inflamation was mentioned.].