A 14.5kb genomic rescue fragment, covering both Gr28a and Gr28b plus approximately 3.4kb 5' and 1.5kb 3' of the cluster.
Gr28b+t14.5 rescues Gr28bMB03888
Expression of Gr28b+t14.5 rescues the "rapid negative thermotaxis" defects seen in Gr28bMB03888 mutant flies.