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Heteroduplex DNA with removed mismatch (from 3')
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| Reaction | Previous state | Following state |
| 3'-5' exonuclease digests erroneous strand some distance beyond mismatch in Escherichia coli strain K-12 substr. MG1655 | Heteroduplex DNA with digested erroneous strand from 3' in Escherichia coli strain K-12 substr. MG1655 | Heteroduplex DNA with removed mismatch (from 3') in Escherichia coli strain K-12 substr. MG1655 |
| Reaction | Previous state | Following state |
| DNA polymerase III resynthesizes DNA (3' directed EcMMR) in Escherichia coli strain K-12 substr. MG1655 | Heteroduplex DNA with removed mismatch (from 3') in Escherichia coli strain K-12 substr. MG1655 | DNA strand being resynthesized by DNA polymerase III (3' nick) in Escherichia coli strain K-12 substr. MG1655 |
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