TABLE 3.

Reversion of G·U mismatched heteroduplex DNA caused by MMR in cell lysates

	No. of experiments	No. of revertants	No. of phages	Mutant frequency (× 10–4)
No cell lysate	6	132	563,588	2.3 ± 0.2
Tonsil B-cell lysate	6	139	342,808	4.1 ± 0.4
Ramos cell lysate	3	38	87,480	4.3 ± 0.5
HeLa cell lysate	10	282	582,293	4.8 ± 0.8