Ligation of double-stranded and single-stranded [Oligo(dT)] DNA by vaccinia virus DNA ligase

Vaccinia virus DNA ligase has been expressed in <em>Escherichia coli</em>, purified, and biochemically characterized. The enzyme ligates double-stranded (ds) DNA substrates with either cohesive or blunt-end termini and the latter reaction is stimulated by PEG. Vaccinia virus DNA ligase c...

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Autori principali: Odell, M, Kerr, S, Smith, G
Natura: Journal article
Lingua:English
Pubblicazione: Elsevier 1996
Soggetti:
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author Odell, M
Kerr, S
Smith, G
author_facet Odell, M
Kerr, S
Smith, G
author_sort Odell, M
collection OXFORD
description Vaccinia virus DNA ligase has been expressed in <em>Escherichia coli</em>, purified, and biochemically characterized. The enzyme ligates double-stranded (ds) DNA substrates with either cohesive or blunt-end termini and the latter reaction is stimulated by PEG. Vaccinia virus DNA ligase can also ligate oligo(dT) when annealed to either a poly(dA) or a poly(rA) backbone and, remarkably, free oligo(dT). This ligation of a single-stranded (ss) substrate is unique among eukaryotic DNA ligases. The enzyme requires high ATP concentrations with a <i>K<sub>m</sub></i> for the overall ligation of a ssDNA substrate of 0.8 m<i>M</i>. The salt, divalent cation, temperature, and pH requirements of the enzyme for the optimal ligation of ss and ds substrate are described.
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spelling oxford-uuid:196eaad0-e524-421a-855b-eb3781d880df2022-03-26T10:49:04ZLigation of double-stranded and single-stranded [Oligo(dT)] DNA by vaccinia virus DNA ligaseJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:196eaad0-e524-421a-855b-eb3781d880dfVirusesGenetics (medical sciences)EnglishOxford University Research Archive - ValetElsevier1996Odell, MKerr, SSmith, GVaccinia virus DNA ligase has been expressed in <em>Escherichia coli</em>, purified, and biochemically characterized. The enzyme ligates double-stranded (ds) DNA substrates with either cohesive or blunt-end termini and the latter reaction is stimulated by PEG. Vaccinia virus DNA ligase can also ligate oligo(dT) when annealed to either a poly(dA) or a poly(rA) backbone and, remarkably, free oligo(dT). This ligation of a single-stranded (ss) substrate is unique among eukaryotic DNA ligases. The enzyme requires high ATP concentrations with a <i>K<sub>m</sub></i> for the overall ligation of a ssDNA substrate of 0.8 m<i>M</i>. The salt, divalent cation, temperature, and pH requirements of the enzyme for the optimal ligation of ss and ds substrate are described.
spellingShingle Viruses
Genetics (medical sciences)
Odell, M
Kerr, S
Smith, G
Ligation of double-stranded and single-stranded [Oligo(dT)] DNA by vaccinia virus DNA ligase
title Ligation of double-stranded and single-stranded [Oligo(dT)] DNA by vaccinia virus DNA ligase
title_full Ligation of double-stranded and single-stranded [Oligo(dT)] DNA by vaccinia virus DNA ligase
title_fullStr Ligation of double-stranded and single-stranded [Oligo(dT)] DNA by vaccinia virus DNA ligase
title_full_unstemmed Ligation of double-stranded and single-stranded [Oligo(dT)] DNA by vaccinia virus DNA ligase
title_short Ligation of double-stranded and single-stranded [Oligo(dT)] DNA by vaccinia virus DNA ligase
title_sort ligation of double stranded and single stranded oligo dt dna by vaccinia virus dna ligase
topic Viruses
Genetics (medical sciences)
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AT smithg ligationofdoublestrandedandsinglestrandedoligodtdnabyvacciniavirusdnaligase