5bp deletion starting at nucleotide 1685 resulting in a frameshift 22 amino acids from the C terminus.
Reported to be 5 bp deletion at nucleotide 1685 resulting in a frame shift 22aa from the C terminus; position of mutation on reference sequence inferred by FlyBase curator (using A of ATG of GB:AF044208 as position 1).
Loss of Vang function in photoreceptor cell R7 can-account for almost all of the degree-of-rotation errors seen in mosaic Vangstbm-15 ommatidia; when R7 is genetically wild type, the variance in the degree of rotation is very close to that of wild type, whereas when R7 is mutant for Vangstbm-15, the variance in the degree of rotation is significantly higher.
Vangstbm-15 homozygous embryos fail to hatch, exhibiting a phenotype similar to unfertilized eggs.