'Cyclic amp' diaporamas de présentation

Molecular Mechanisms of Gene Regulation: The Operon (Ch7)

Molecular Mechanisms of Gene Regulation: The Operon (Ch7). Operon - set of genes that are coordinately controlled by a regulatory protein AND transcribed as a single polycistronic message.

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CELL COMMUNICATION

CELL COMMUNICATION. Campbell & reece Chapter 11. Cell Messaging. some universal mechanisms of cellular regulation cells most often communicate with other cells by chemical signals. Evolution of Cell Signaling. Yeast: Saccharomyces cerevisia 2 sexes: a & ?

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Chapter 6

Chapter 6. Communication, Integration, and Homeostasis. About this Chapter. How cells communicate Electrical and chemical signals Receptor types and how they function Local regulation of cells Modification of receptors and signals Homeostatic balance depends on communication

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Topic 3 Cell Signalling

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Topic 3 Cell Signalling

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Signal Transduction

Signal Transduction. Many enzymes are regulated by covalent attachment of phosphate , in ester linkage, to the side-chain hydroxyl group of a particular amino acid residue (serine, threonine, or tyrosine).

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Signal Transduction

Signal Transduction. Cell-cell signalling at a distance: Regulation of haploid and diploid specific genes in yeast mating. ?. a. Each haploid cell secretes a mating type pheromone eg. Alpha factor

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Signal Transduction

Signal Transduction. Cell-cell signalling at a distance: Regulation of haploid and diploid specific genes in yeast mating. ?. a. Each haploid cell secretes a mating type pheromone eg. Alpha factor

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MB207 Molecular Cell Biology Cell Communication

MB207 Molecular Cell Biology Cell Communication. General principles of cell communication. All cells have some ability to sense and respond to specific chemical signals. ? Intercellular communication.

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Patrick An Introduction to Medicinal Chemistry 3/e Chapter 6 PROTEINS AS DRUG TARGETS:

Patrick An Introduction to Medicinal Chemistry 3/e Chapter 6 PROTEINS AS DRUG TARGETS: RECEPTOR STRUCTURE & SIGNAL TRANSDUCTION Part 2: Sections 6.3 - 6.6. Contents Part 2: Sections 6.3 - 6.6 3. G-protein-coupled receptors (7-TM receptors)

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Gene Regulation

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Chapter 47: Endocrine System and Cellular Signaling

Chapter 47: Endocrine System and Cellular Signaling. AP BIOLOGY. I) Hormones. Hormones are chemical messengers that affect cellular metabolism Metabolism includes: Protein synthesis Enzyme activation Changes in membrane permeability Mitotic division

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G Protein Linked Receptors

G Protein Linked Receptors. Introduction. G-protein-linked receptors are the largest family of cell-surface receptors. More than 100 members have already been defined in mammals.

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Receptor terminology

Receptor terminology. Protein-ligand properties: specificity, saturation, affinity, competition Antagonist: binds to receptor site and inhibits Agonist: binds to receptor site and stimulates Down-regulation: ? levels of messenger ?? receptors Up-regulation: ? levels of messenger ?? receptors

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SIGNAL TRANSDUCTION

SIGNAL TRANSDUCTION. MECHANISMS OF SIGNAL TRANSDUCTION. Protein Phosphorylation . Second Messengers . Gene Transcription & Translation. THE PHOSPHORYLATION CASCADE. PHOSPHORYLATION CASCADE: CONTROL OF MAPK PATHWAY. SECOND MESSENGER SYSTEM: CYCLIC AMP PATHWAY.

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Chapter 2 Bioinorganic Chemistry of Alkali and Alkaline Earth Metals

Chapter 2 Bioinorganic Chemistry of Alkali and Alkaline Earth Metals. 2.1 Distribution and Biological Roles 2.2 Trans-membrane Ion Transport Passive and Active Transport ????????? Ionophore and Ionic Channel ??????????? 2.3 Active Transport: Na + -K + -ATPase

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Top 10 Weight Loss Pills 2018- EFFECTIVE MEASURES FOR A FITTER BODY

Diet pills have emerged as a speedy and much appealing option, which if consistently used yield results.

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100

1. Absorbance (600 nM). 0.1. 0.01. 100. 25. 50. 75. 0. Time (h). Figure S2. Effect of the loss of ptsHIcrr operon function on L-ascorbate utilization. The two strains were JM101 (wild type, u ) and PB11 ( ?ptsHI

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