UAS regulatory sequences drive expression of Osbp carrying a point mutation in the FFAT domain (F276A).
Scer\GAL4VP16.nanos.UTR/OsbpF276A.UAS fails to rescue Osbp1
Expression of OsbpScer\UAS.cMa under the control of Scer\GAL4nos.UTR.T:Hsim\VP16 fails to restore fertility in Osbp1 animals.