Rs104886461

rs104886461, also known as IVS3-2A>G or IVS3-2A-G, is a mutation in the mucolipin-1 MCOLN1 gene. This SNP represents the most common mutation in Ashkenazi Jews leading to Mucolipidosis type IV, an autosomal recessive neurodegenerative lysosomal storage disorder. Somewhere between 1 in 50 and 1 in 150 individuals of Ashkenazi Jewish ancestry are estimated to be (heterozygous) carriers for this SNP.

Screening of Ashkenazi Jews for carriers of this SNP is recommended by the American College of Medical Genetics (ACMG; ).

See also: OMIM 605248.0001