To provide Nsp7524V restriction-modification genes and a method for producing Nsp7524V restriction enzyme and Nsp7524V modification enzyme by using a novel microorganism having, introduced thereinto, plasmids containing said genes.PPNsp7524V restriction-modification genes. A method for producing Nsp7524V restriction enzyme and/or Nsp7524V modification enzyme which comprises incubating a microorganism carrying a plasmid having, integrated thereinto, Nsp7524V restriction-modification genes, and recovering the Nsp7524V restriction enzyme and/or Nsp7524V modification enzyme thus produced from the culture.PPIt becomes possible to efficiently produce Nsp7524V restriction enzyme and/or Nsp7524V modification enzyme which are useful in the field of genetic engineering.
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