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MouseFinder results for Ptosis, hereditary congenital 1 (MIM# 178300) which has a mapped locus of 1p34.1-p32 but no known gene. Here a mouse line involving a mutation of Artn is the top hit by avgIC and the human orthologue ARTN is located at 1p34.1. The mouse model exhibits the same phenotype of blepharoptosis (drooping eyelids) and in addition reveals abnormalities in the small superior cervical ganglion. Damage to this ganglion is one of the known causes of blepharoptosis.
