- +: "mutagenic (< 100 revertants/mg)" in Ames test, "positive" in CASE Ultra and "probable" in Derek Nexus
- ±: "inconclusive" in CASE Ultra and "equivocal" in Derek Nexus
- -: "non-mutagenic" in Ames test, "positive" in CASE Ultra, "inactive" in Derek Nexus
- DEREK version: Derek Nexus: 6.1.1, Nexus: 2.4.0, CASE Ultra Version: 1.8.0.5