one unit of enzyme

Chris Boyd chrisb at
Mon Oct 14 04:59:22 EST 1996

Jeff F (jefff at wrote:
: Hello!
: I am wondering if anyone can tell me the definition of one unit of
: enzyme!
: Thank you for your time!
: Jeff F
: jefff at
: Toronto

One unit of restriction enzyme is the amount the average graduate
student thinks you need fifty of to digest 200 ng of DNA in an
overnight reaction.  (NB, satire.)

Best wishes,
Chris Boyd                       | from, | MRC Human Genetics Unit
chrisb at             |  not  |  Western General Hospital |   for |   Edinburgh EH4 2XU, SCOTLAND

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