Toolyard

KpnI Recognition Site


KpnI at a glance

5' GGTAC|C 3'
3' C|CATGG 5'
Recognition site5'-GGTACC-3'
CutGGTAC^C
Endsa 4-base 3' overhang (GTAC)
Expected frequencyabout once every 4,096 bp in random DNA

How to find KpnI sites in a sequence

  1. Paste a DNA sequence or FASTA record into the box above. KpnI is already entered under Only these enzymes.
  2. Tick Circular DNA for a plasmid, so a site that spans the end and the start is found.
  3. The map marks each KpnI cut with its position. Copy or download the output below it.

Frequently asked questions

What sequence does KpnI cut?

KpnI recognizes GGTACC (written 5' to 3') and cuts the top strand at GGTAC^C.

Does KpnI leave sticky or blunt ends?

Sticky ends: a 4-base 3' overhang (GTAC).

How often does KpnI cut?

A site like GGTACC turns up about once every 4,096 bp in random DNA. Real sequences vary, so check yours above.

Restriction enzymes

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