neb31 recombinant dil_A 37 No

This product has been replaced with the high fidelity version, KpnI-HF™ (NEB #R3142).

We are excited to announce that all reaction buffers are now BSA-free. NEB began switching our BSA-containing reaction buffers in April 2021 to buffers containing Recombinant Albumin (rAlbumin) for restriction enzymes and some DNA modifying enzymes. Find more details at

  • Catalog # R0142 was discontinued on December 15, 2021
NEB restriction endonuclease that recognizes the sequence G_GTAC^C
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