donor splicing site
donor splicing site[′dō·nər ‚splīs·iŋ ‚sīt]
(cell and molecular biology)
The boundary between the left (5′) end of an intron and the right (3′) end of an exon in messenger ribonucleic acid. Also known as left splicing junction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.