Ames - Semisolid S. typhimurium strains, TA97a

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Salmonella typhimurium TA97a tester strain, semisolid format. 250 µL. Frameshift detection at cytosine runs. Enhanced sensitivity alternative to TA1537. Research use only.

TA97a carries pKM101 and detects frameshift mutations at repetitive cytosine sequences — a mutation hotspot not optimally covered by TA1537. It is OECD 471 compatible and included in extended regulatory testing batteries as an alternative to TA1537 when greater sensitivity to cytosine-run frameshift mutagens is needed.

• Frameshift detection at cytosine repetitive sequences
• pKM101 enhanced sensitivity — more sensitive than TA1537
• OECD 471 compatible alternative/complement to TA1537
• 250 µL semisolid — store at -70°C