direct repeat

direct repeat

[di¦rekt ri′pēt]
(cell and molecular biology)
Identical or closely related nucleotide sequences present in two or more copies in the same orientation within the same molecule.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The Human GH VDRE is an imperfect direct repeat, and the Glu42 of the VDR interacts with the -57 T with higher affinity to exert a negative regulatory effect.
dentatum only contained 2 copies of one 11-nt direct repeat (A1 and A2) and one 10-nt inverted repeat (B and B rev comp).
Most prominent of the methods was the expression of functional fluorescent protein as a result of recombination by homology-directed repair in pancreatic cells of transgenic FYDR (fluorescent yellow direct repeat) mice derived from the C57Bl6 strain.
Indeed, had the Polish possessed a clinical edge close to the approach play with which they exposed England far too easily, it would have been a direct repeat of the night in Moscow which tipped McClaren to the brink of the abyss.
The deletion breakpoints were determined as c.54-1161_c.164+1603del2875 and a mutation mechanism was suggested based on a small direct repeat at the 5' and 3' breakpoints.
tuberculosis complex can be differentiated by DNA sequencing of the oxyR, pncA, gyrB, or hsp65 gene; analysis of spacers between direct repeats in the direct repeat (DR) region; and deletion analysis of the regions of difference (RD) provide a more rapid and accurate approach to the differentiation of the members of the M.
With a massive 105-77 aggregate verdict over the Eagles, the Buildbase Bees have set up a cup final clash against old rivals Belle Vue in a direct repeat of last year's dramatic play-off final.
But, "Ghost" throws its most powerful punch in its second half, reporting on contempo events as a direct repeat of the ghastly Leopold era.
We identified an abnormal sequence inserted in exon 2 as an Alu sequence and a direct repeat (300 + 15 bp).
For that, we designed primers (M27PP1-B-F, 5'-TTACTCC-GACTATGCGTTCAC-3'; M27PP1-B-R, 5'-CAAACTT GCCCCTGATAGCG-3'; amplicon length, 1.5 kb) to amplify the insertion site of the structure comprising the direct repeat and prophage-like genomic island of E coli PCN033, as previously described (1).
Although there are many factors implicated in RA but human leukocyte antigen (HLA) gene like direct repeat 4 (DR4) drugs, chemicals, bacteria, some viruses like hepatitis C virus, Epstein Bar virus and metals have been considered as the causative agents (Lawrence et al., 1998).
cervi contains repeated sequences with the following characteristics: three copies of a 23 nt complete direct repeat, A, located at 209 nt upstream of the ITS1 sequences; six copies of a 27 nt complete direct repeat, B, separated by 1 nt, which occur after repeat A; five copies of a 27 nt nearly complete direct repeat, C, separated by 1 nt, which occur after repeat B; four copies of a 28 nt complete direct repeat, D; three copies of a 19 nt direct repeat, E; and a 26 nt direct repeat, F (Figure 2).
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