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Due to the anti-parallel nature of DNA, this means the 3' end of the template strand is upstream of the gene and the 5' end is downstream. Some genes on the same DNA molecule may be transcribed in opposite directions. This means the upstream and downstream areas of the molecule may change depending on which gene is used as the reference.
(See also upstream and downstream.) Directionality is related to, but different from, sense. Transcription of single-stranded RNA from a double-stranded DNA template requires the selection of one strand of the DNA template as the template strand that directly interacts with the nascent RNA due to complementary sequence. The other strand is not ...
The upstream signaling pathway is triggered by the binding of a signaling molecule, a ligand, to a receiving molecule, a receptor. Receptors and ligands exist in many different forms, and only recognize/bond to particular molecules. Upstream extracellular signaling transduce a variety of intracellular cascades. [1]
The 5' UTR is upstream from the coding sequence. Within the 5' UTR is a sequence that is recognized by the ribosome which allows the ribosome to bind and initiate translation. The mechanism of translation initiation differs in prokaryotes and eukaryotes. The 3' UTR is found immediately following the translation stop codon.
Silencers are DNA sequences found in the 5′ flanking region of eukaryotic genes, assisting in the silencing of a gene. They can be found upstream, downstream, or within the gene of interest. [3] When repressors bind silencers, they act in a similar fashion as enhancers and bend over to prevent the interaction of RNA polymerase with promoters ...
Upstream and downstream (DNA), ... Upstream and Downstream, the notional directions which lie "towards" and "away from" the author of a piece of software, ...
Three employees at a Maryland Cracker Barrel have reportedly been dismissed after staff refused to seat a group of students with special needs on Dec. 3 Superintendent of Charles County Public ...
Upstream transcription factors are proteins that bind somewhere upstream of the initiation site to stimulate or repress transcription. These are roughly synonymous with specific transcription factors , because they vary considerably depending on what recognition sequences are present in the proximity of the gene.