AE enhancer element of ftz regulatory region fragments from base pair 2224 to base pair 2393 and from base pair 2418 to base pair 2574, governing expression of lacZ from a minimal Hsp70 promoter (enhancer element coordinates refer to location within ftz upstream element, FBrf0048801).
This allele previously described in Schier and Gehring, Nature 356:804-807 .