Gene expression

Gene expression in eukaryotes is controlled by a variety of mechanisms that range from those that prevent transcription to those that prevent expression after the protein has been produced.
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Stages of gene expression that are regulated
Any step of gene expression may be modulated, from the DNA-RNA transcription step to post-translational modification of a protein. Following is a list of stages where gene expression is regulated: ...
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Monitoring gene expression in yeast shows that different combinations of transcription factors participate in turning on (and off) entire sets of genes (reported by Holstege, F. C. P., et al, in Cell, 25 November 1998.
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Three hours after m1 mAChR activation a different pattern of gene expression was demonstrated. It included the novel genes Gig-3 and Gig-4, as well as the LIM-only protein LM04.
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Dr. Richard Morgan, of the National Human Genome Research Institute's Clinical Gene Therapy Branch, defines gene expression.
illustrated:
View illustration ...
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Gene expression analysis
The expression of many genes can be determined by measuring mRNA levels with multiple techniques including microarrays, expressed cDNA sequence tag (EST) sequencing, serial analysis of gene expression (SAGE) tag sequencing, ...
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Gene expression
The process by which a gene's coded information is converted into the structures present and operating in the cell.
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Gene Expression in Hydatidiform Mole
Rebecca Lobb, Cheryl Lemanski, Karen Denison, and Joe Gatewood
Genomics and Structural Biology Group; LS-2, MS 880; Los Alamos National Laboratory; Los Alamos, New Mexico 87545 ...
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Gene expression
The process by which a a gene product is produced. For genes that encode proteins, the gene must be transcribed into mRNA and then translated into protein.
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Gene expression: The process by which genes express themselves: in the cell, ge ne expression results in the manufacture of proteins that determine an organism's characteristics.
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Gene expression. The process of producing a protein from its DNA- and mRNA-coding sequences.
Gene flow. The exchange of genes between different but (usually) related populations.
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Gene expression: The process by which information coded by genes is converted into the structures present and operating in the cell.
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Gene expression
: The process that converts a gene's coded information into the structures operating in the cell.
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What can gene expression in the brain tell us about human evolution?
I think we only compared the liver, blood, and brain, and we chose liver and blood because they were organs and systems where there didn't seem to be many differences.
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The occurrence of gene expression in a tissue in which it is normally not expressed. Such ectopic expression can be caused by the juxtaposition of novel enhancer elements to a gene during genetic manipulation of transgenic organisms.
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(See Dominant gene, Fusion gene, Gene amplification, Gene expression, Gene flow, Gene pool, Gene splicing, Gene translocation, Recessive gene, Regulatory gene.) Gene amplification. The presence of multiple genes.
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gene expression The production of a biologically active gene product, either constitutive or regulated. gene splicing The enzymatic attachment of one exon to another.
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This type of regulation of gene expression is sometimes termed casette regulation in analogy to the insertion of a tape casette in a tape player.
Preference for which HML locus donates information to MAT is governed by a recombinational enhancer.
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A technique to monitor gene expression in thousands of genes. Thousands of probe DNAs are spotted or synthesized on microscope slides. Sample RNAs are labeled with fluorescent dyes.
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The parental effect on gene expression. Identical alleles may have different effects on offspring, depending on whether they arrive in the zygote via the ovum or via the sperm.
genomic library ...
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OPERON - A complete unit of bacterial gene expression and regulation, including the structural gene or genes, regulator gene(s), and control elements in DNA recognized by regulator gene products(s).
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These researchers argue that the combinatorial nature of transcriptional regulation allows a rich substrate for morphological diversity, since variations in the level, pattern, or timing of gene expression, ...
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Werth, C. R., and Windham, M.D., 1991, A model for divergent, allopatric, speciation of polyploid pteridophytes resulting from silencing of duplicate- gene expression, AM-Natural, Volume 137(4):515-526.
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Divergence in structure and function of cells as they become specialized during a multicellular organism's development; depends on the control of gene expression (cell differentiation).
Covered in Lab 14 Gametogenesis and Development ...
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As a cell begins to form certain structures, certain genes are turned on, others are turned off. Induction affects patterns of gene expression through physical contact or chemical signals. Formation of the vertebrate eye is a well known example.
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System Essays in Biochemistry vol 40: The Nuclear Receptor Superfamily Essays in Biochemistry vol 39: Programmed Cell Death Essays in Biochemistry vol 38: Proteases in Biology and Medicine Essays in Biochemistry vol 37: Regulation of Gene Expression ...
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