Nucleic Acids Research, 1989, Vol. 17, No. 14 5529-5536
© 1989
MOLECULAR BIOLOGY |
Mechanism of incision by an apurinic
apyrimidinjc endonuclease present in human placenta
Laboratory of Biotechnology, University of Bergen, Bergen 9001 Tromse, Norway 1Department of Biochemistry, Institute of Medical Biology University of Tromse 9001 Tromse, Norway
*To whom correspondence should be addressed
Received April 24, 1989. Revised June 12, 1989. Accepted June 12, 1989.
An apparently homogeneous enzyme preparation, containing an apurinic/apyrimidinic (AP) endonuclease from human placenta, was by DNA sequencing analysis found to act as a class I AP-endonuclease, i.e. produce a 3'-deoxyribose and 5'-phosphomonoester nucleotide termini.