Ames - Liquid Typhimurium Strain, TA98

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Salmonella typhimurium TA98 tester strain in liquid format. 50 µL. For frameshift mutation detection in Ames MPF and Ames II mutagenicity assays. Research use only.

TA98 is the primary frameshift mutation detector in the OECD 471 Ames test. It detects mutagens causing -1 or +1 base-pair frameshifts in the histidine biosynthesis gene sequence. TA98 carries pKM101 (ampicillin resistance, enhanced mutagen detection via error-prone repair) and the uvrB deletion (impaired DNA excision repair). Store at -70°C.

• Frameshift mutation detection — required OECD 471 tester strain
• pKM101 plasmid — enhanced sensitivity to frameshift mutagens
• Liquid format — high viability for immediate assay use
• Store at -70°C; compatible with Ames MPF and Ames II kits