Cloning by restriction enzyme digestion and ligation is a simple and easy way of moving a fragment of double stranded DNA from one plasmid to another.

Start by:

  1. Choosing restriction enzymes for which the recognition sequences flank your gene of interest
  2. Incubate the reaction for the recommended amount of time
  3. Purify your fragment
  4. Ligate into your plasmid of interest

Anza™ Restriction Enzyme Cloning System

A complete system of restriction enzymes and DNA-modifying enzymes—for beautifully simple cloning.

  • One buffer for all restriction enzymes
  • One digestion protocol for all DNA types
  • Complete digestion in 15 minutes
  • Overnight digestion without star activity

Restriction enzymes

A simple two-step protocol, regardless of the number of restriction enzymes in your reaction or the type of DNA you’re using—just prepare your reaction mixture and incubate at 37°C for 15 minutes.

128 Restriction Enzymes

Anza buffer

Conventional Restriction Enzymes

Restriction enzymes (REs) function by cutting double-stranded DNA at specific 4- to 8-base pair inverted repeat recognition sequences. The products of DNA cleavage are either blunt-ended or contain 5′ or 3′ overhangs. 

DNA Modification Enzymes


Regardless of the type of end generated by restriction digestion, cleavage of the DNA results in fragments with 3′-hydroxyl groups and 5′-phosphate groups at their termini. DNA ligase covalently connects 5′-phosphate and 3′-hydroxyl termini of duplex DNA (or RNA) in an ATP-dependent reaction.

Alkaline Phosphatase

Alkaline phosphatase hydrolyzes 3′ and 5′ phosphates from DNA and RNA. It is suitable for removing 5′ phosphates prior to end labeling and for dephosphorylating vectors prior to insert ligation. It can also be used to dephosphorylate proteins.

End Repair

End repair allows DNA with 5′ or 3′ overhangs to be converted to 5′ phosphorylated blunt-end DNA for efficient ligation into blunt-end cloning vectors.


Polymerases are used to generate blunt ends and/or incorporate labeled DNA.

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