Nucleic Acids Research, 2002, Vol. 30, No. 21 e123
© 2002 Oxford University Press
AarI, a restriction endonuclease from Arthrobacter aurescens SS2-322, which recognizes the novel non-palindromic sequence 5'-CACCTGC(N)4/8-3'

1
Fermentas UAB and
1 Institute of Biotechnology, Grai
i
no 8, 2028 Vilnius, Lithuania
*To whom correspondence should be addressed. Tel: +370 2 602110; Fax: +370 2 602116; Email: janulait{at}ibt.lt
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.