Question
Describe the naming of the restriction enzymes with an example.

Answer

Naming of restriction enzymes:
  • The first letter of the name comes from the genus of the bacterium.
  • The second and third letters come from the name of the species of the prokaryote cell from where it is isolated.
  • The next letter comes from the strain of the prokaryote.
  • The Roman Numbers following these four letters indicate the order in which the enzymes were isolated from that strain of the bacterium, e.g. EcoRI is isolated from E.coli, RY 13.

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