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promoter |
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promoter 1. Chem a substance added in small amounts to a catalyst to increase its activity 2. Genetics a sequence of nucleotides, associated with a structural gene, that must bind with messenger RNA polymerase before transcription can proceed promoter [prə′mōd·ər] (chemistry) A chemical which itself is a feeble catalyst, but greatly increases the activity of a given catalyst. (genetics) The site on deoxyribonucleic acid to which ribonucleic acid polymerase binds preparatory to initiating transcription of a gene or an operon. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| DPI research director German Spangenberg says cytokinin levels are increased in plants that are under the control of a highly developmentally regulated plant gene promoter. To investigate the potential contribution of the NF[kappa]B transcription factor to COX-2 transcriptional induction by arsenite, we used COX-2-luciferase (COX-2-Luc) reporter containing full length (-1432/+59) or a mutation of the NF[kappa]B binding sites (-223/-214) of human COX-2 gene promoter linked to the luciferase (Subbaramaiah et al. for a human gene promoter that enables tissue-specific expression of foreign genes in epidermal cells. |
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