repressor
From: The Columbia Encyclopedia, Sixth Edition
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Date: 2008
repressor see nucleic acid .
Author not available, REPRESSOR.,
The Columbia Encyclopedia, Sixth Edition 2008
The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press
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Fluorescence resonance energy transfer over (tilde)130 basepairs in hyperstable Lac repressor-DNA loops
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ABSTRACT Lac repressor (LacI) binds two operator DNA sites ... conditions. INTRODUCTION The E. coli lactose repressor (the lacI gene product, LacI protein ... transient or stable DNA loops bridged by a repressor tetramer. Repression efficiency is ...
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Genomic Evidence for COP1 as a Repressor of Light-Regulated Gene Expression and ... supports the hypothesis that COP1 acts as a repressor of photomorphogenesis, possibly by controlling ... development: Evidence for a light-inactivable repressor of photomorphogenesis. Plant Cell 6 ...
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Radiolysis of lac repressor by (gamma)-rays and heavy ions: A two-hit model for protein inactivation
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... gamma-ray or argon ion irradiation of the lac repressor protein, its peptide chain is cleaved ... per protomer obeys Poisson's law. The repressor inactivation model takes into account ... of dimer) and the organization of the repressor in domains (two DNA binding sites, one ...
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Induced Fit and the Entropy of Structural Adaptation in the Complexation of CAP and [lamda]-Repressor with Cognate DNA Sequences
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... catabolite-activator protein (CAP), λ-repressor, and their corresponding uncomplexed ... entropy difference between CAP and λ-repressor complexation arises more from the additional ... is entropy-controlled, and the λ-repressor/operator binding is enthalpy-controlled ...
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Specific Defects in Different Transcription Complexes Compensate for the Requirement of the Negative Cofactor 2 Repressor in Saccharomyces cerevisiae
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... evolutionarily conserved transcriptional repressor, although in vitro and in vivo experiments ... antagonistically interact with the NC2 repressor and suggest that the correct balance ... YOUNG 1998). An example of this type of repressor is the negative cofactor 2 (NC2), also ...
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... Consistent with its role as a transcriptional repressor, OsWRKY71 is localized to nuclei of aleurone ... that OsWRKY71 encodes a transcriptional repressor of GA signaling in aleurone cells. GA ... O-linked GlcNAc transferase (OGT) and RGA, a repressor of GA signaling (Jacobsen et al., 1996 ...
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Connection Between the Rag4 Glucose Sensor and the KlRgt1 Repressor in Kluyveromyces lactis
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... of glucose. KlRgt1 is therefore only a repressor of RAG1. As described for ScRgt1, the KlRgt1 repressor function is controlled by phosphorylation ... antimycin A. We show that KlRGT1 encodes a repressor protein very similar to Rgt1 of S. cerevisiae ...
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Inducer-Modulated Cooperative Binding of the Tetrameric CggR Repressor to Operator DNA
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... reveal a bimodal effect of FBP on the repressor/operator interaction. At micromolar concentrations ... existence of two sugar-binding sites in the repressor, a high affinity site at which FBP acts ... CggR) is one of the transcriptional repressors that have been recently identified by ...
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SPINDLY is a nuclear-localized repressor of gibberellin signal transduction expressed thorughout the plant
Plant Physiology; 6/1/2002; Swain, Stephen M; Tseng, Tong-Seung; Thornton, Tina M; Gopalraj, Manjula; Olszewski, Nei E; 7527 words;
SPINDLY Is a Nuclear-Localized Repressor of Gibberellin Signal Transduction Expressed ... GRAS family (Pysh et al., 1999), RGA (REPRESSOR OF gal-3) and GAI (GA INSENSITIVE; Peng ... transcriptional regulators that act as repressors of GA signal transduction (Silverstone ...
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Pathogen-Induced Arabidopsis WRKY7 Is a Transcriptional Repressor and Enhances Plant Susceptibility to Pseudomonas syringae1[W]
Plant Physiology; 11/1/2006; Kim, Kang-Chang; Fan, Baofang; Chen, Zhixiang; 8845 words;
... elements, and functions as a transcriptional repressor in plant cells. To study its biological ... screening, Arabidopsis MAP kinase 4 (MPK4), a repressor of SA-dependent resistance (Petersen ... functions as a DNA-binding transcriptional repressor. Loss-of-function T-DNA insertion and ...
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Role of an Arabidopsis AP2/EREBP-Type Transcriptional Repressor in Abscisic Acid and Drought Stress Responses
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... AtERF7 binds to the GCC box and acts as a repressor of gene transcription. AtERF7 interacts ... plants may also involve transcriptional repressors. The activity and/or expression of the ... family, as an important transcriptional repressor in ABA responses. AtERF7 interacts with ...
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Repressor- and Activator-Type Ethylene Response Factors Functioning in Jasmonate Signaling and Disease Resistance Identified via a Genome-Wide Screen of Arabidopsis Transcription Factor Gene Expression[w]
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... plants coordinately express multiple repressor- and activator-type AP2/ERFs during pathogen ... by the coordinated expression of both repressor- and activator-type AP2/ERF TF genes ... previously been shown to function as an active repressor of transcription (Fujimoto et al., 2000 ...
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The Arabidopsis F-Box Protein SLEEPY1 Targets Gibberellin Signaling Repressors for Gibberellin-Induced Degradation(W)
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... inducing proteolysis of the DELLA protein REPRESSOR OF ga1-3 (RGA). SLEEPY1 (SLY1) encodes ... known as GRAS (for GA INSENSITIVE [GAI], REPRESSOR OF ga1-3 [RGA], and SCR) (Pysh et al ... domain produces a constitutively active repressor that is resistant to inactivation by ...
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A Comprehensive Structure-Function Analysis of Arabidopsis SNI1 Defines Essential Regions and Transcriptional Repressor Activity(W)(OA)
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... functions as an active transcriptional repressor through a highly conserved mechanism ... function in the nucleus as a transcriptional repressor of PR genes. After induction, SNI1 repression ... hypothesized to be a transcriptional repressor of PR genes because the sni1 mutation ...
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Folding [lambda]-Repressor at Its Speed Limit
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... lower the folding barrier of the lgr;-repressor N-terminal domain [lambda]^sub 6-85 ... shown in Fig. 1. The different [lambda]-repressor mutants used here are abbreviated according ... lambda]^sub 6-85^ variants. [lambda]-repressor expression and purification The [lambda ...
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