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repressor

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Repressor - Wikipedia
A repressor is a DNA- or RNA-binding protein that inhibits the expression of one or more genes by binding to the operator or associated silencers. en.wikipedia.org
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REPRESSOR Definition & Meaning - Merriam-Webster
: one that represses; especially : a protein that is determined by a regulatory gene, binds to a genetic operator, and inhibits the initiation of transcription ... www.merriam-webster.com
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Repressor - National Human Genome Research Institute (NHGRI)
Repressors are proteins that turn off or reduce gene expression, which is reflected by reduced messenger RNA production from the affected gene. www.genome.gov
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repressor
reˈpressor Also 8 -our. [a. L. repressor, agent-n. f. reprimĕre to repress: cf. represser.] 1. One who, or that which represses. rare.1611 Florio, Ripressore, a repressor. 1676 G. Towerson Decalogue 416 No furtherer of uncleanness but on the contrary the repressor of it. 1725 J. Lewis Life Pecock (1... Oxford English Dictionary
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The lac repressor - PubMed
In bacteria, the genes required for lactose utilization are negatively regulated when a repressor molecule binds to an upstream cis activated operator. The ... pubmed.ncbi.nlm.nih.gov
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Activators and Repressors | Biology for Majors I - Lumen Learning
Activators (and sometimes inducers) instigate positive regulation, and repressors instigate negative regulation. courses.lumenlearning.com
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Article Repressor structure and the mechanism of positive control
We argue that in both the λ and P22 repressors a structure comprised of two alpha helices has two functions: to bind DNA and to contact RNA polymerase. www.sciencedirect.com
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The lactose repressor system: paradigms for regulation, allosteric ...
The lactose repressor monomer was used as a model system for experimental and theoretical explorations of protein folding mechanisms. pubmed.ncbi.nlm.nih.gov
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Repressor - an overview | ScienceDirect Topics
A repressor is a molecule that blocks the access of RNA polymerase to target promoters, thereby preventing gene expression. It can also alter the structure ... www.sciencedirect.com
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Repressor proteins - BYJU'S
A repressor is an RNA or DNA binding protein that prevents the expression of genes by attaching to the operator or related silencers. byjus.com
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SNAI1 snail family transcriptional repressor 1 [ (human)]
The Drosophila embryonic protein snail is a zinc finger transcriptional repressor which downregulates the expression of ectodermal genes within the mesoderm. The nuclear protein encoded by this gene is structurally similar to the Drosophila snail protein, and is also thought to be critical for mesoderm formation in the developing embryo. At least two variants of a similar processed pseudogene ...
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Ribose repressor
The Ribose repressor (RbsR) is a bacterial DNA-binding transcription repressor protein and a member of the LacI/GalR protein family. wikipedia.org
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which gene is regulated by the tryptophan repressor
Tryptophan repressor is a transcription factor involved in controlling amino acid metabolism.
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Repressor lexA
Repressor LexA or LexA (Locus for X-ray sensitivity A) is a transcriptional repressor () that represses SOS response genes coding primarily for error-prone wikipedia.org
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Lac repressor
E.coli cells less accessible for the repressor. See also Lac operon References External links More information on the lac repressor molecule on protein database Lac Repressor in Proteopedia. wikipedia.org
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