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Pribnow box[′prib‚nō ‚bäks]
(cell and molecular biology)
In prokaryotes, a highly conserved sequence element located upstream from the transcriptional start site to which binds the sigma subunit of the ribonucleic acid polymerase.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.