24.8kb genomic fragment from the BACR23I04 BAC clone which contains the sna gene.
sna+t24.8 rescues sna18/sna1
At 25[o]C, sna+t24.8 rescues 91% of sna1/sna18 animals to viability. At 18[o]C, 100% are rescued and at 29[o]C 100% are rescued.