orb2f01556 mutants do not exhibit any obvious defects in locomotion and activity. Flies return to a standing position following vortexing at a similar rate to wild type flies and show normal climbing ability.
The rough eye phenotype observed in Fmr1sev.PW flies is suppressed in a orb2f01556/+ background.
orb2[+]/orb2f01556 is a suppressor of eye phenotype of Fmr1sev.PW