Protein splicing elements: inteins and exteins--a definition of terms and recommended nomenclature.

Francine B.Perler*, Elaine O.Davis1, Gary E.Dean2, Frederick S.Gimble3, William E.Jack, Norma Neff4, Christopher J.Noren, Jeremy Thorner5 and Marlene Belfort6 New England Biolabs, Inc., Beverly, MA 01915, USA, 'National Institute for Medical Research, Mill Hill, London, UK, 2University of Cincinnati College of Medicine, Cincinnati, OH 45267-0524, 3Institute of Biosciences and Technology, Texas A & M University, Houston, TX 77030-3303, 4Sloan -Kettering, Molecular Biology Program, New York, NY 10021, 5University of California, Berkeley, CA 94720 and 6Wadsworth Center for Laboratories and Research, NY State Department of Health, Albany, NY 12201-0509, USA