CHOICE HAV418V

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1- Linux basics (1,5h CM + 3hTD): Basic commands to navigate under Linux and understand the logic of this language. Small exercises to extract information in bash/shell. Element used for the analysis of alignment files.

2- Database (3h CM + 4,5hTD): know the main bibliographic and biological databases (NCBI, Ensembl, Galaxie...). Know how to make relevant and efficient queries, exploit, sort, description of the different formats

3- Sequence analysis (1,5hCM + 4,5H TD): Alignment and comparison of sequences with a small introduction to phylogeny (dot plot, Blast ...)

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This compulsory UE of S4 allows students to consolidate and deepen the bases of molecular and cellular biology acquired in L1.

- Cell biology: The teaching will focus on 4 major themes: 1) The functioning of the cell cytoskeleton, 2) Cell adhesion, 3) Protein trafficking, 4) Introduction to cell cycle regulation. Cell biology methodologies will also be presented: immunoprecipitation for the detection of protein interactions, fluorescence videomicroscopy to follow the dynamics of cell distribution, evaluation of the importance of proteins of interest in a cellular process by strategies to modulate their expression (RNA interference, overexpression).

- Molecular biology : After acquiring in semester 3 knowledge concerning the mechanisms of transcription and translation, we will approach the regulation of gene expression: transcriptional regulation (repressor, activator) and attenuation in prokaryotes, the bases of the mechanisms of regulation of expression in eukaryotes.

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This course aims to broaden the knowledge acquired previously in different areas of microbiology, particularly in microbial ecology.

It will deal with pathogenic relationships, but will also present examples of symbiotic associations. It will address the applications of microorganisms in biotechnology. It will describe the mode of action of antibiotics and the associated resistance phenomena and their impact.

The EU will approach the notion of viral ecology by presenting the place and role of viruses in ecosystems. The case of bacteriophages will be treated more specifically and the mechanisms of resistance of bacteria to phagic infection will be detailed. The different types of viral infections in animals will be presented (acute and persistent infections) and illustrated through the study of the pathogenesis of selected viral infections.

The knowledge on microorganisms will be extended by the study of Archaea and a model eukaryotic organism, the yeast.

The practical work will focus on the realization of an antibiogram and its interpretation, and on the titration of bacteriophages.

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To know the major families of plant molecules and their properties, the biosynthetic pathways of these molecules, the mechanisms of regulation of these biosyntheses in the plant and microorganisms. In this module, the major families of molecules from secondary plant metabolism (terpenes, flavonoids, alkaloids, saponins) are studied through their biosynthesis in the plant and the differentiation of specialized structures or groups of cells. Based on this knowledge, biotechnological approaches for metabolic engineering are presented. The role of these molecules in plant life is discussed as well as their properties used by industry as dyes, flavors, fragrances, drugs, biofuels. The use of natural polymers in the manufacture of industrial materials is discussed (paper pulp, rubber, plastics) and the production channels are described. Knowledge of the major families of plant molecules and their properties, the biosynthesis pathways of these molecules, and the mechanisms of regulation of these biosyntheses in the plant remains a major challenge for the development of biorefineries in Europe.                                              

Keywords: secondary metabolism, metabolic engineering, biomolecule valorization, cellular and metabolic differentiation, regulation of secondary metabolism.

Additional information:

Visits of 2 analytical platforms are planned on the Montpellier pole (duration 1h30 each)

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The objective of this course is to understand evolutionary processes, both at the micro- and macro-evolutionary scales.

Based on examples, manipulations and accessible modeling, the lessons will aim at presenting in a concrete and quantitative way the effects of the 4 evolutionary forces operating at the scale of individuals and populations (mutation, migration, selection and drift). The integration of these micro-evolutionary processes at larger time scales (e.g. differentiation between lineages, speciation) will then be addressed. Finally, the course will include an introduction to the tools of phylogeny (reading and construction of trees) allowing the study of macro-evolutionary events (diversification, extinction) and the tracing of changes in character states, notably by integrating fossil data.

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The Physiology of major functions (semester 4) aims to describe the role and interactions of the various systems of the organism that contribute to maintaining a constant internal environment. Acquisition of anatomical and functional knowledge of the cardiovascular, respiratory, digestive and renal systems and their nervous and hormonal controls. Understand the combined action of these major systems through examples of integrative physiology and pathologies: respiratory and cardiac insufficiency; hemorrhage; exposure to extreme environments.

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This compulsory course will allow students to deepen their skills acquired in "S3 biochemistry". It will allow them to understand cellular metabolism through:

-The understanding of bioenergetics in order to study the processes by which living cells carry, transmit, use, store and release energy;
-the study of catabolism and anabolism of carbohydrates, lipids, nucleotides, amino acids and the metabolic interactions between these pathways.

- description of metabolic pathologies.

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In this introductory course to genetic analysis, the objectives are to learn the terms, principles, concepts and methods used in formal genetics, as well as their application in human and medical genetics. This course covers the genetics of transmission (Mendelian or non-Mendelian), quantitative genetics and notions of population genetics. Throughout the course, close links are established between classical and molecular genetics.

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