| The 1008 bp IL 1F10 cDNA encodes a 152 amino acid protein that shares between 41 % and 43 % amino acid identity with human IL 1 receptor antagonist ( IL 1Ra ) and FIL 1delta , respectively . ^^^ IL 1F10 shares characteristics of the IL 1Ra family , including key amino acid consensus sequences and a similar genomic structure . ^^^ The expression in a variety of immune tissues and similarity to IL 1Ra suggest a role of IL 1F10 in the inflammatory response . . ^^^ |