Dictionary > Cleavage site

Cleavage site

noun, plural: restriction sites
The site in a polynucleotide chain as to where the restriction enzyme cleaves nucleotides by hydrolyzing the phosphodiester bond between them.
The restriction enzyme recognizes the site as to where it cuts via a specific sequence of nucleotides along the polynucleotide chain. For example, when the restriction enzyme, Eco RI, recognizes the palindromic sequence GAATTC, it cuts between G and A on the top and bottom strands.

  • restriction site
  • restriction recognition site

See also: restriction enzyme

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