Medical Definition of DNA restriction-modification enzymes

1. Systems consisting of two enzymes, a modification methylase and a restriction endonuclease. They are closely related in their specificity and protect the DNA of a given bacterial species. The methylase adds methyl groups to adenine or cytosine residues in the same target sequence that constitutes the restriction enzyme binding site. The methylation renders the target site resistant to restriction, thereby protecting DNA against cleavage. (12 Dec 1998)



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Lexicographical Neighbors of DNA Restriction-modification Enzymes

DNA polymerisation
DNA polymorphism
DNA primase
DNA primers
DNA probe
DNA probes
DNA profiling
DNA puff
DNA rearrangement
DNA renaturation
DNA repair
DNA repair gene
DNA repair pathway
DNA replicase
DNA replication
DNA restriction-modification enzymes (current term)
DNA restriction enzymes
DNA reverse gyrase
DNA sequence
DNA sequence analysis
DNA sequences
DNA sequencing
DNA shearing
DNA snippet
DNA snippets
DNA supercoiling
DNA synaptase
DNA synthesis
DNA synthesiser
DNA topoisomerase

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