The following information accompanied stocks donated to the Bloomington Stock Center by Pam Mitchell, Pennsylvania State University (4/07).
P{sE-raftorY9}3 is an insertion on a TM3, Sb1 balancer.  This insertion was isolated during the work described in Dickson, B.J., van der Straten, A., Dominguez, M., Hafen, E. (1996). Mutations modulating Raf signaling in Drosophila eye development. Genetics  142:163-171  (FBrf0086382).
Bloomington will use the Balancer short name TM3, P{sE-raftorY9}3, Sb1 for this balancer variant.