Toolyard

XhoI Recognition Site


XhoI at a glance

5' C|TCGAG 3'
3' GAGCT|C 5'
Recognition site5'-CTCGAG-3'
CutC^TCGAG
Endsa 4-base 5' overhang (TCGA)
Expected frequencyabout once every 4,096 bp in random DNA
Compatible endsSalI

How to find XhoI sites in a sequence

  1. Paste a DNA sequence or FASTA record into the box above. XhoI 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 XhoI cut with its position. Copy or download the output below it.

Frequently asked questions

What sequence does XhoI cut?

XhoI recognizes CTCGAG (written 5' to 3') and cuts the top strand at C^TCGAG.

Does XhoI leave sticky or blunt ends?

Sticky ends: a 4-base 5' overhang (TCGA).

Which enzymes leave ends compatible with XhoI?

SalI. Their overhangs are the same, so the ends can be ligated to each other.

How often does XhoI cut?

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

Restriction enzymes

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