'Specific transcription factors' diaporamas de présentation

Chapter 39

Chapter 39. Plant Responses to Internal and External Signals. Overview: Stimuli and a Stationary Life. Linnaeus noted that flowers of different species opened at different times of day and could be used as a horologium florae , or floral clock

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Growth (Short Stature, Obesity) Diabetes Mellitus in Children

Growth (Short Stature, Obesity) Diabetes Mellitus in Children. Sioksoan Chan-Cua, MD Associate Professor Pediatric Endocrinologist. Learning Outcomes. Short stature Identify causes of short stature Acquire skill in history-taking, physical examination in a child with short stature

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Chapter 18: Gene Expression

Chapter 18: Gene Expression. The Operon Model. Detecting Glucose/Lactose Levels. Fig. 18-6. Signal. NUCLEUS. Chromatin. Chromatin modification. DNA. Gene available for transcription. Gene. Transcription. RNA. Exon. Primary transcript. Intron. RNA processing. Tail.

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Transcription control in eukaryotes

Transcription control in eukaryotes. Subjects, covered in this lecture. Overview Structural classification of eukaryotic transcription factors Transcription control mechanicms -by altered states of chromatin -through Mediator -by epigenetic mechanisms

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FROM GENE TO PROTEIN

FROM GENE TO PROTEIN. Chapter 17. Proteins make the Organism. Overview of the Gene to Protein Concept. The Triplet Code. The Dictionary of The Genetic Code. Transcription. Genes have nucleotide segments upstream of them called promoters

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RNA Synthesis and Processing Transcription Transcriptional Regulation RNA Processing

RNA Synthesis and Processing Transcription Transcriptional Regulation RNA Processing. RNA Polymerase and Transcription. RNA polymerase is the principal enzyme responsible for RNA synthesis. Like DNA polymerase, RNA polymerase is a complex enzyme made up of multiple polypeptide chains.

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Signals in DNA tell RNA polymerase where to start and stop transcription

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Gene Control in Eukaryotes

Gene Control in Eukaryotes In eukaryotic cells, the ability to express biologically active proteins comes under regulation at several points:

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32 Gene regulation in Eukaryotes

32 Gene regulation in Eukaryotes. Lecture Outline 11/28/05. Gene regulation in eukaryotes Chromatin remodeling More kinds of control elements Promoters, Enhancers, and Silencers Combinatorial control Cell-specific transcription Post transcription gene regulation mRNA processing

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Regulation of Gene Expression

Regulation of Gene Expression. Chapter 18. How do Organisms Control the Level of Gene Expression?. Cells must only express genes when needed Gene expression (transcription, translation) takes up large amounts of cellular energy and resources

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Cytokines

Cytokines. Functions Receptors Signaling Chapter 11. Cytokines are soluble mediators (small proteins) of innate and adaptive immunity and the mechanisms by which leukocytes communicate with one another. Functions of cytokines. stimulation inhibition differentiation cell death

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Monica C. Sleumer

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