AarI, a restriction endonuclease from Arthrobacter aurescens SS2-322, which recognizes the novel non-palindromic sequence 5'-CACCTGC(N)4/8-3'

Abstract
A new type II restriction endonuclease AarI has been isolated from Arthrobacter aurescens SS2‐322. AarI recognizes the non‐palindromic heptanucleotide sequence 5′‐CACCTGC(N)4/8‐3′ and makes a staggered cut at the fourth and eighth bases downstream of the target duplex producing a four base 5′‐protruding end. AarI activity is stimulated by oligodeoxyribonucleotide duplexes containing an enzyme‐specific recognition sequence.