P{GawB} insertion approximately 2.5 kb into approximately 4.5-kb second intron (coding sequence) of CG6330 transcript RB; 640 bp 5' of start of CG6330 transcript RA.
Flies show an aberrant gravitaxic response in a vertical gravitaxic maze assay, and show wild type behaviour in a horizontal maze. Male courtship activity is comparable to wild type, and flight is not seriously impaired.