'Chromatin structure' diaporamas de présentation

Organization of genes on chromosomes

Organization of genes on chromosomes. Mapping genes on chromosome: Genetic mapping (linkage and recombination analyses). Cytogenetics method. Restriction mapping, deletion studies, and other molecular approaches such as chromosome walking. Sequencing. Deduction of gene structure.

1.89k views • 130 slides

Chapter 19 Control of Gene Expression

Figure 19.1. Chapter 19 Control of Gene Expression. Overview: How Eukaryotic Genomes Work and Evolve In eukaryotes, the DNA-protein complex, called chromatin Is ordered into higher structural levels than the DNA-protein complex in prokaryotes.

753 views • 64 slides

Synapse-to Nucleus Calcium Signalling

Synapse-to Nucleus Calcium Signalling. Why Calcium?. Na + and Cl - are sea water Excluded to maintain low osmotic pressure [K + ] i kept high for electrical neutrality [Ca 2+ ] i maintained very low Prevents precipitation of organic anions Mg 2+ helps solubilize organic anions.

738 views • 59 slides

Chromosomes, Chromatin, and the Nucleosome

Chromosomes, Chromatin, and the Nucleosome. Chromosomes: DNA associated with proteins. The chromosome is a compact form of the DNA that readily fits inside the cell. Packaging the DNA into chromosomes serves to protect the DNA from damage.

1.29k views • 49 slides

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.

788 views • 36 slides

DNA

DNA. Introduction.

508 views • 34 slides

Epigenetics

Epigenetics. Epigenetics - Heritable changes in gene expression that operate outside of changes in DNA itself - stable changes in gene expression caused by changes in chromatin structure. Epigenetics. DNA methylation Histone tail post-translational modifications microRNA.

1.73k views • 33 slides

The control of gene expression by chromatin remodeling

530 views • 29 slides

Extra Slides

Extra Slides. DATA TO SUPPORT STATEMENTS IN PRESENTATION. Outline of talk. General background Introduction to the project Experimental design Experiments and results Conclusions Future experiments. Prior demonstrations of KAP1 complexes. Structure of CSD complex.

442 views • 28 slides

Organization of the eukaryotic genomes

Organization of the eukaryotic genomes. Chromatin structure Genome organization. Why do eukaryotes need to form chromatin? Levels of packing: - role of histones - nucleosomes Euchromatin and heterochromatin. Genome organization. Prokaryotes Most genome is coding

1.06k views • 21 slides

Computational Approaches in Epigenomics

Computational Approaches in Epigenomics. Guo-Cheng Yuan Department of Biostatistics and Computational Biology Dana-Farber Cancer Institute Harvard School of Public Health. BIO506, Jan 11 th , 2010. Definition.

337 views • 20 slides

Controlling Chromatin Structure

Controlling Chromatin Structure. Chapter 30. 30.2 Chromatin Can Have Alternative States. Chromatin structure: is stable cannot be changed by altering the equilibrium of transcription factors and histones. Figure 30.2. 30.3 Chromatin Remodeling Is an Active Process.

496 views • 17 slides

Mechanisms of male reproductive toxicity

808 views • 16 slides

Epigenetic mechanisms of gene regulation

Epigenetic mechanisms of gene regulation. Chromatin structure Slows transcription Hypercondensation stops transcription Position effect variegation X inactivation Inactivation of one X chromosome in female mammals Genomic imprinting

676 views • 16 slides

Regulation of Gene Activity

550 views • 14 slides

BIO 4751: Advanced Molecular and Cellular Biology

223 views • 14 slides

Gene Regulation

Gene Regulation. Chapter 13. Prokaryotic and Eukaryotic Genomes all of the genetic material possessed by an organism or group of organisms both contain many 1,000's of protein coding genes prokaryotes = most genes code for protein as usual only a small amount of noncoding DNA

238 views • 12 slides

Epigenetics

Epigenetics. Gene expression revisited . Along with the many controls we discussed in gene expression, the epigenome also influences gene expression. The term epigenome refers to modifications in chromatin structures which do not involve mutations.

695 views • 8 slides

Epigenetics

Epigenetics. Gene expression revisited . Along with the many controls we discussed in gene expression, the epigenome also influences gene expression. The term epigenome refers to modifications in chromatin structures which do not involve mutations.

648 views • 8 slides

Q4. Nucleosome is the basic unit of chromatin structure, please describe

177 views • 3 slides