The Ames MPF 1535 assay comprises the histidine auxotrophic Salmonella tester strain TA1535 for detecting base-pair substitutions and all media required to perform the assay. Kits including additional S9 and Positive Controls are also available.
TA1535 is similar to TA100 but does not contain the plasmid pKM101, whose mucAB gene products enhance SOS mutagenesis. Although the presence of pKM101 makes TA100 in general more sensitive for mutagen detection, there are chemicals mutagenic in TA1535 but not in TA100.
If you cannot find the answer to your problem then please contact us or telephone +44 (0)1954 210 200