The mutants show head tilt and occasional head tossing behavior.
Detailed Phenotype Description:
These mutants were detected through routine inspections for overt abnormal behavior; head- and body tilt can be observed at approximately 4 weeks of age (average onset 4.6 +/- 0.6 weeks; n=15). Male or female mutants have been produced and the colony is maintained through regular breeding. Standard pathology work-up and a whole-mount ear exam on one mutant (56 days of age) revealed no abnormalities.
