inverted repeat


Also found in: Encyclopedia, Wikipedia.

in·vert·ed re·peat

(in-vert'ĕd rē-pēt'),
A sequence of nucleotides that is repeated nearly without change except in the opposite direction, usually at some point distant from the original sequence; often associated with gene insertion.

inverted repeat (IR)

a short sequence in a duplex DNA molecule which is repeated in the reverse orientation, either immediately adjacent or after an intervening sequence

After denaturing a duplex containing an inverted repeat, the single-stranded DNA may fold back and form a HAIRPIN or hairpin loop upon renaturing. Compare DIRECT REPEAT.

inverted repeat

blocks of nucleotide sequence that are present in more than one copy, but in a reverse order, such as ABCDE and E,D,C,B,A,; they may be terminal or internal. Called also indirect repeat. See also palindrome.
References in periodicals archive ?
Stowaway: A new family of inverted repeat elements associated with the genes of both monocotyledonous and dicotyledonous plants.
9 kb) inverted repeat containing the rRNA cistrons, 30 tRNA genes, 44 genes encoding proteins for photosynthesis, 44 ribosomal protein genes (26 large subunit and 18 small subunit), 5 genes for biosynthetic function, 19 genes involved in gene expression (including 3 hypothetical chloroplast reading frames or ycfs), 25 additional ycfs, and 9 open reading frames (ORFs) larger than 50 amino acids.
Different oligonucleotides with inverted repeats were designed to form hairpin loop structures to test efficiency of the sodium bisulfite reaction method.