Mjd MJD1 MGI:1099442 ataxin-3 genetic mapping O Gene http://identifiers.org/mgd/MGI:1099442 Atxn3 2210008M02Rik Sca3|Mjd|ataxin-3|Atx3|MJD1|2210008M02Rik protein coding gene Atx3 Sca3 ataxin 3 -