caspase-activated DNase CAD protein coding gene Gene MGI:1196287 - 40kDa CPAN CPAN|CAD|5730477D02Rik|Didff|40kDa|caspase-activated DNase|DFF40 DNA fragmentation factor, beta subunit DFF40 http://identifiers.org/mgd/MGI:1196287 Dffb O Didff 5730477D02Rik genetic mapping