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. 1982 Apr;79(8):2432–2436. doi: 10.1073/pnas.79.8.2432

Sequence-specific endonuclease BamHI: relaxation of sequence recognition.

J George, J G Chirikjian
PMCID: PMC346212  PMID: 6283522

Abstract

The effect of glycerol on the specificity of DNA cleavage by the restriction endonuclease BamHI has been examined. In addition to the canonical G decreases from G-A-T-C-C site, BamHI cuts DNA at several sites that we have named noncanonical BamHI.1 sites. The number of BamHI.1 sites in simian virus 40 and pBR322 was determined to be 13 for each DNA. Cutting sites determined by DNA sequence analysis include G decreases from G-A-A-C-C, G decreases from G-C-T-C-C, G decreases from G-G-T-C-C, and G-A-A-T-C-C with the complementary strand sequence assignments of G-G-T-T-C-C, G-G-A-G-C-C, G-G-A-C-C-C, and G-G-A-T-T-C. The relaxation in specificity was related to hydrogen bond acceptor and donor sites in the recognition sequence, in an attempt to generate a model of BamHI recognition of cognate sites in DNA.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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