Amino acid replacement: A218T.
G5681571A
A218T | Gr5a-PA
A218T
Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.
Flies show a decreased preference for trehalose in a feeding preference test.
Semidominant allele that confers low taste sensitivity to trehalose, but does not affect taste sensitivity to glucose, fructose or sucrose.