'Chromatin remodeling' diaporamas de présentation

Paris 12-12-2005

971 views • 85 slides

Paris 12-12-2005

975 views • 85 slides

Chromatin remodeling ATPases non-covalent change

Chromatin remodeling ATPases non-covalent change. Lecture outline. Types of chromatin remodelers complexes protein domains Activities of chromatin remodelers on chromatin in the organism. Chromatin remodeling ATPases. txn assembly. DNA methylation. txn. exchange. txn repression.

1.14k views • 82 slides

Selected topics in Transcription

Selected topics in Transcription. Nir London. Computational Biology Seminar 2006. Overview. Elongation Pause; Arrest Chromatin remodeling; Histones CTD Mediator Complex Mechanism model Composition and Interaction network Initiation Mechanism New findings. Elongation.

823 views • 65 slides

Chapter 9 Molecular Mechanisms of Gene Regulation

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Heterochromatin

Heterochromatin. Darkly stained and condensed. Transcriptionally silent and silences adjacent genes. Present at centromeres and telomeres. HP1 interacts with H3 only when K9 is methylated. Repressive structure can be propagated. Euchromatic gene placed in heterochromatin is repressed.

464 views • 45 slides

512 views • 41 slides

MCB 317 Genetics and Genomics

MCB 317 Genetics and Genomics. MCB 317 Topic 10, part 4 A Story of Transcription. Deletion and Linker Scanner Analysis. Identify and define TBP and basal factors. In vitro Txn Assay. Extract + Prom.- Enh. Basal Facts. + Prom.- Enh. Promoter sufficient in vitro. Activated Txn

522 views • 39 slides

DNA damage response and chromatin remodeling Presentation for Ron Shamir group internal meeting

DNA damage response and chromatin remodeling Presentation for Ron Shamir group internal meeting 3/11/2010.

471 views • 36 slides

Chromatin Remodeling

Chromatin Remodeling. Levels of chromatin organization. 300 nm fiber. nucleosome arrays. Structure of the nucleosome: problems of accessibility for DNA-binding proteins. Histone cores are predominantly alpha helical. Luger et al. (1997) Nature 389, 251.

549 views • 28 slides

Controlling Chromatin Structure

Controlling Chromatin Structure. Why? It is related to gene expression and regulation. Transcription. in vitro in vivo. DNA TFs RNA polymerase nucleosomes. DNA TFs RNA polymerase. Model ?. 1-Equilibrium model: prokaryotes ( limited energy)

331 views • 27 slides

Chromatin modulation and DNA damage response

Chromatin modulation and DNA damage response. A- De visu: chromatin decondensation in mammalian cells B- Chromatin modulation 1- Covalent histones modifications 2- Histone exchange 3- ATP-dependent chromatin remodeling C- Models of dynamic chromatin remodeling at sites of DNA damage.

212 views • 20 slides

Gene Regulation in Eukaryotes

Gene Regulation in Eukaryotes. Same basic idea, but more intricate than in prokaryotes Why? Genes have to respond to both environmental and physiological conditions Developmentally triggered genes that organize cells into tissues, tissues into organs, and organs into an entire organism.

371 views • 18 slides

By: Jim Heffernan , Ben Hierlmeier , Katie Strobel and Devan Van Lanen-Wanek

Beta Catenin : An Essential Player in Both Cell-Cell Adhesion and Wnt Transcriptional Regulation. By: Jim Heffernan , Ben Hierlmeier , Katie Strobel and Devan Van Lanen-Wanek. ?-catenin. Structure Role in cell Structure determination Future research Educational objectives.

248 views • 9 slides

17 January 2.30pm - ITQB Auditorium Manuel Malfeito Ferreira (ISA /CBAA )

145 views • 1 slides