Structural snapshots of human DNA polymerase μ engaged on a DNA double-strand break
Polymerase μ (Polμ) participates in the repair of DNA double-strand breaks (DSBs) via the nonhomologous end-joining (NHEJ) pathway. Here, the authors determine the crystal structure of a pre-catalytic ternary complex of human Polμ with a bound DSB substrate and they obtain further mechanistic insigh...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2020-09-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-020-18506-5 |
| Summary: | Polymerase μ (Polμ) participates in the repair of DNA double-strand breaks (DSBs) via the nonhomologous end-joining (NHEJ) pathway. Here, the authors determine the crystal structure of a pre-catalytic ternary complex of human Polμ with a bound DSB substrate and they obtain further mechanistic insights by allowing the insertion reaction to proceed in crystallo, which enabled them to determine a Polμ structure with incomplete incorporation and the structure of the post-catalytic nicked state. |
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| ISSN: | 2041-1723 |