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R.KpnI, an HNH superfamily REase, exhibits differential discrimination at non-canonical sequences in the presence of Ca(2+) and Mg(2+)
KpnI REase recognizes palindromic sequence, GGTAC↓C, and forms complex in the absence of divalent metal ions, but requires the ions for DNA cleavage. Unlike most other REases, R.KpnI shows promiscuous DNA cleavage in the presence of Mg(2+). Surprisingly, Ca(2+) suppresses the Mg(2+)-mediated promisc...
Autores principales: | , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2007
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1885652/ https://www.ncbi.nlm.nih.gov/pubmed/17430971 http://dx.doi.org/10.1093/nar/gkm114 |