The following information accompanied stocks donated to the Bloomington Drosophila Stock Center by Larry Marsh, University of California, Irvine.
P{UAS-HTT.ex1.Q97.3KQ.S16A} expresses human HTT exon 1 with K6, K9 and K15 all changed to Q and S16 changed to A under the control of UAS.
P{UAS-HTT.ex1.Q97.3KQ.S16A}1 is a homozygous viable and fertile insertion on the third chromosome.