Cellular retinoic acid binding protein( CRABP) belongs to a superfamily of intracellular lipid binding proteins. CRABP plays an important role in a wide range of physiological processes,including cell differentiation,tissue reconstruction and signal transduction,but its role in the insect midgut remains to be investigated. A full-length c DNA clone named Slcrabp was identified from an Expressed Sequence Tag(EST) library of the midgut of Spodoptera litura. Slcrabp c DNA is consisted of 396 nucleotides and en...