'Lac operon' presentation slideshows

Unit #3 Schedule:

Unit #3 Schedule:. Previously: Sanger Sequencing Central Dogma Overview Mutation Transcription , RNA Processing, Translation Last Class: Central Dogma Sculpting Today: Regulation of Gene Expression + Trivia StudyNotes 9 Due Tutorial (Apr 5) Review (Apr 9) EXAM 3 (Apr 11 )

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Chapter 18 Gene Expression

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Homework #2 is posted and due 10/18 Exam key is posted

Regulating Gene Expression. Homework #2 is posted and due 10/18 Exam key is posted. Combinations of 3 nucleotides code for each 1 amino acid in a protein. Exons are a very small part of DNA.

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Lecture 6

Lecture 6. ? 3 ? 3.1 ????? RNA 3.2 ???? 3.3 ?????? ???? 3.3.1 ???? 3.3.2 ????? 3.3.3 ?????? 3.3.4 Ara ? Gal 3.4 ????. Chapter 3 3.1 Why Use an RNA Intermediate? 3.2 Mechanism of Transcription 3.3 Regulation of Gene Expression in Prokaryotes

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A genome-wide perspective on translation of proteins

A genome-wide perspective on translation of proteins. Dec 2012 Regulatory Genomics Lecturer: Prof. Yitzhak Pilpel. Teaching assistant: Idan Frumkin. idan.frumkin@weizmann.ac.il Submit Sunday at midnight. The Central Dogma of Molecular Biology Expressing the genome. RNA. Inactive DNA.

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Positive Feedback and Bistability

Positive Feedback and Bistability. BIOE 423: 2013. Stable state. Transient state. Stable state. Simulation of biochemical network. Stable steady state. Multiple stable states. Different starting points lead to different steady states. Positive Feedback. v1 = ? v2 = ? dS/dt = ?. v2.

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Gene Regulation

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Gene Regulation

Gene Regulation. Remember! All of your cells contain the exact same DNA. Your nerve cells do not look like or act like skin cells, so do they use the same genes? NO!. Gene Regulation. Genes are to be turned on/off based on whether they will be used or not!

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Announcements

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Regulation of eukaryotic gene sequence expression

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Unit 13: Prokaryotic Gene Expression Lesson 2: lac vs trp operons

Unit 13: Prokaryotic Gene Expression Lesson 2: lac vs trp operons. Please Make Sure your final protein structure questions are turned in. Start do-now silently. Not all proteins need to be made all the time. Some proteins are made infrequently (specific antibodies towards diseases)

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Operons: Bacterial Gene Control

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Gene Regulation

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Footprinting DNA-Protein Interactions

Footprinting DNA-Protein Interactions. Powerful and fairly rapid methods for mapping where and how proteins bind tightly to DNA 2 ways: DNAse I footprinting DMS footprinting. DNAse I Footprinting. Prepare end-labeled DNA. Bind protein.

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Gene Regulation

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Genetics - Ch 10

Genetics - Ch 10. Molecular Mechanisms of Gene Regulation. Control of Gene Expression. DNA -------------> RNA ------------> protein . transcriptional control. translational control.

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Prokaryotic Gene Regulation:

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Prokaryotic Gene Regulation:

Prokaryotic Gene Regulation:. Lecture 5. Introduction. The two types of transcription regulation control in prokaryotic cells The lac operon an inducible regulatory feedback system The tryp operon a repressible regulatory feedback system. The role of bioinformatics analysis in such systems.

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OUTLINE 3 Control of Gene Expression in Prokaryotes A. Regulatory proteins B. The operon model C. Examples 1. t

OUTLINE 3 Control of Gene Expression in Prokaryotes A. Regulatory proteins B. The operon model C. Examples 1. the lac operon (substrate induction) 2. the tryp operon (end product repression) 3. the lac operon (positive control). Fig. 18.21. Negative regulation:

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AP Biology Final: Key terms to Review

AP Biology Final: Key terms to Review. Kreb Cycle Hardy-Weinberg Mitosis vs. Meiosis (phases) Fungi-characteristics Properties of Proteins Lac operon system (E. coli) Peptide bonds Enzyme activities

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