Preferential Site-dependent Cleavage by Restriction Endonuclease PstI
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The four identical recognition sites for the restriction endonuclease PstI in purified plasmid pSM1 DNA I are cleaved at markedly different rates. The order and relative frequencies of cleavage at these four PstI sites have been determined from the order of appearance of partial cleavage products and from an analysis of production of specific unit length linear molecules. The same pattern of preferential cleavage is also found when linear, nicked circular, or relaxed closed circular forms of the same plasmid DNa are used as substrates for PstI. Inspection of the nucleotide sequences immediately adjoining each of the PstI sites suggests that the presence of adjacent runs of G-C base pairs confers significant resistance to cleavage.
da Silva C, Dos Santos H, Marbach P, Souza J, Cruz-Magalhaes V, Argolo-Filho R PeerJ. 2019; 7:e7452.
PMID: 31768299 PMC: 6874854. DOI: 10.7717/peerj.7452.
Wagenknecht M, Dib J, Thurmer A, Daniel R, Farias M, Meinhardt F Biotechnol Lett. 2010; 32(12):1853-62.
PMID: 20652620 PMC: 2974207. DOI: 10.1007/s10529-010-0357-y.
Cleavage of adenine-modified functionalized DNA by type II restriction endonucleases.
Macickova-Cahova H, Hocek M Nucleic Acids Res. 2009; 37(22):7612-22.
PMID: 19820117 PMC: 2794189. DOI: 10.1093/nar/gkp845.
Been M, Burgess R, Champoux J Nucleic Acids Res. 1984; 12(7):3097-114.
PMID: 6326051 PMC: 318732. DOI: 10.1093/nar/12.7.3097.
Site-dependent cleavage of pBR322 DNA by restriction endonuclease HinfI.
Armstrong K, Bauer W Nucleic Acids Res. 1983; 11(12):4109-26.
PMID: 6306575 PMC: 326028. DOI: 10.1093/nar/11.12.4109.