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a structure in replicating circular DNA.
Synonym(s): displacement loop
Farlex Partner Medical Dictionary © Farlex 2012
A BoxA highly conserved (i.e., the DNA nucleotide sequence is similar among many eukaryotic species) region located between base pairs +10 and +20 "upstream" on the tRNA gene, which have the dual role of encoding functional tRNA and promoting tRNA transcription, and acting as a site of receptive protein binding.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.