| A 33 nucleotide ( nt ) region of the 55 kDa tumor necrosis factor receptor ( TNFR 55 ) mRNA , previously reported by us to engage in such interaction with proteins from U 937 cells , exhibits homology to a 38 nt regulatory region of the glucose transporter GLUT 1 mRNA . ^^^ This suggests that GLUT 1 and TNFR 55 RNA share a novel protein binding RNA motif involved in regulation of their half life . . ^^^ |