The following information accompanied stocks donated to the Bloomington Stock Center by Nick Brown, University of Cambridge. stvVA99 and stvVA73 are EMS mutations. starvinVA99 is a CGA to TGA mutation resulting in protein truncation. The following list gives the positions of the truncation in stv isoforms: R406* in stv-RB (FBtr0075807) R432* in stv-RC (FBtr0075808) R499* in stv-RA (FBtr0075806) R525* in stv-RE (FBtr0113425) stvVA73 is a AAG to TAG mutation resulting in protein truncation. The positions are: K230* in stv-RB (FBtr0075807) K256* in stv-RC (FBtr0075808) K323* in stv-RA (FBtr0075806)