reading frame(redirected from open reading frame (ORF))
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read·ing frame(rēd'ing frām),
The grouping of nucleotides by threes into codons. See: frameshift mutation.
Farlex Partner Medical Dictionary © Farlex 2012
One of the three possible ways in which an mRNA sequence of nucleotides can be read as a series of base triplets to specify the amino acids in a protein chain.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
reading frameAn imaginary window through which base pairs can be inspected three at a time, and which provides a way in which a nucleotide sequence can be viewed as three different sets of CODONs only one of which is correct.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005