Mechanism of DNA transesterification by vaccinia topoisomerase: catalytic contributions of essential residues Arg-130, Gly-132, Tyr-136 and Lys-167.
Vaccinia topoisomerase, a eukaryotic type IB enzyme, catalyzes relaxation of supercoiled DNA by cleaving and rejoining DNA strands through a DNA- (3'-phosphotyrosyl)-enzyme intermediate. We have performed a kinetic analysis of mutational effects at four essential amino acids: Arg-130, Gly-132, Tyr-1...
Guardat en:
| Publicat a: | Nucleic Acids Res |
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| Autors principals: | , |
| Format: | Artigo |
| Idioma: | Inglês |
| Publicat: |
Oxford University Press
1997
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| Matèries: | |
| Accés en línia: | https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC146853/ https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/9224599/ https://ncbi.nlm.nih.govhttps://doi.org/10.1093/nar/25.15.3001 |
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