Slide 1
... • Genomic and proteomic approach comparing csgDproficient to strains in which no csgD expression is detectable to identify novel csgD-dependent genes ...
... • Genomic and proteomic approach comparing csgDproficient to strains in which no csgD expression is detectable to identify novel csgD-dependent genes ...
11_Instructor_Guide - Fullfrontalanatomy.com
... birdhouses remain intact. When cells differentiate, they read, or express, only the genes that are needed in that particular cell type. 2.The lactose operon is turned on by removing the repressor—a sort of double negative. Students might enjoy various analogies to other types of “double negatives,” ...
... birdhouses remain intact. When cells differentiate, they read, or express, only the genes that are needed in that particular cell type. 2.The lactose operon is turned on by removing the repressor—a sort of double negative. Students might enjoy various analogies to other types of “double negatives,” ...
2005 MCB 3020 Study Objectives, Part 2
... proteins, activator proteins, operator site, activator binding site. Note that biosynthetic products (like tryptophan) are often co-repressors that repress the synthesis of biosynthetic proteins. (If you have a lot of tryptophan, you don’t need to make biosynthetic enzymes to make more.) Note that c ...
... proteins, activator proteins, operator site, activator binding site. Note that biosynthetic products (like tryptophan) are often co-repressors that repress the synthesis of biosynthetic proteins. (If you have a lot of tryptophan, you don’t need to make biosynthetic enzymes to make more.) Note that c ...
A Tale of Three Inferences
... gene G, if T1 binds to c1 and T2 binds to c2 in an inductive way, then the expression of G will remain the same if the promoter were to have twice the number of c1 and c2 goes to 0. • Boolean AND: Under same conditions, there will be no expression ...
... gene G, if T1 binds to c1 and T2 binds to c2 in an inductive way, then the expression of G will remain the same if the promoter were to have twice the number of c1 and c2 goes to 0. • Boolean AND: Under same conditions, there will be no expression ...
Document
... all have the same chemical formula: C12H22O11 they are ISOMERS of each other they can only be absorbed into the intestine & blood stream when they are broken down into their monomers (monosaccharides) by enzymes Examples ...
... all have the same chemical formula: C12H22O11 they are ISOMERS of each other they can only be absorbed into the intestine & blood stream when they are broken down into their monomers (monosaccharides) by enzymes Examples ...
III Transcriptional Regulation
... regulatory proteins, affecting AreA activity by protein-protein interactions, are still unknown. Searching for other components of the nitrogen regulation network, we investigated the role of the glutamine synthetase (GS) as a potential candidate. In contrast to our expectation, loss of function mut ...
... regulatory proteins, affecting AreA activity by protein-protein interactions, are still unknown. Searching for other components of the nitrogen regulation network, we investigated the role of the glutamine synthetase (GS) as a potential candidate. In contrast to our expectation, loss of function mut ...
The Co-Evolution of Genes and Culture Pedigrees
... disaccharide. Infant mammals produce the enzyme lactase in their small intestines. Lactase breaks down lactose into glucose and galactose. These two simpler sugars, or monosaccharides, are easily absorbed through the small intestine and into the bloodstream. The blood delivers the sugars throughout ...
... disaccharide. Infant mammals produce the enzyme lactase in their small intestines. Lactase breaks down lactose into glucose and galactose. These two simpler sugars, or monosaccharides, are easily absorbed through the small intestine and into the bloodstream. The blood delivers the sugars throughout ...
分子生物學小考(一) 範圍ch3~ch7
... 4. In prokaryotes, environmental sensing frequently involves regulatory proteins (two-component system) that sense and respond to changes in surroundings. These two-component systems may involve which of the following? I. Protein phosphorylation (A) I only ...
... 4. In prokaryotes, environmental sensing frequently involves regulatory proteins (two-component system) that sense and respond to changes in surroundings. These two-component systems may involve which of the following? I. Protein phosphorylation (A) I only ...
Transcription
... lac operator has a nearly palindromic sequence Repressor protein used to “fish” binding DNA sequence Lac I binds to 26bp element with nearly 2-fold symmetry ...
... lac operator has a nearly palindromic sequence Repressor protein used to “fish” binding DNA sequence Lac I binds to 26bp element with nearly 2-fold symmetry ...
Week 8
... – When lactose is present in significant amounts, the cells determine an optimal expression level for LacZ with respect to the maximal wild-type rate • This is achieved in a few hundreds of generations ...
... – When lactose is present in significant amounts, the cells determine an optimal expression level for LacZ with respect to the maximal wild-type rate • This is achieved in a few hundreds of generations ...
![Biochemistry_and_Digestion_2010[1]](http://s1.studyres.com/store/data/008289894_1-a2dae968af20e40d29d6bcd9c3fab727-300x300.png)
Biochemistry_and_Digestion_2010[1]
... Glucose plus fructose - sucrose Glucose plus galactose - lactose ...
... Glucose plus fructose - sucrose Glucose plus galactose - lactose ...
What makes the lac-pathway switch: identifying the fluctuations that
... Multistable gene regulatory systems sustain different levels of gene expression under identical external conditions. Such multistability is used to encode phenotypic states in processes including nutrient uptake and persistence in bacteria, fate selection in viral infection, cell cycle control, and ...
... Multistable gene regulatory systems sustain different levels of gene expression under identical external conditions. Such multistability is used to encode phenotypic states in processes including nutrient uptake and persistence in bacteria, fate selection in viral infection, cell cycle control, and ...
Chemistry of Life Review Sheet Key
... polar molecule- molecule with positive and negative ends hydrogen bond- formed between hydrogen of 1 molecule and negative end (usually oxygen) of another molecule. dehydration synthesis - a condensation reaction is a chemical reaction in which two molecules or moieties combine to form one single mo ...
... polar molecule- molecule with positive and negative ends hydrogen bond- formed between hydrogen of 1 molecule and negative end (usually oxygen) of another molecule. dehydration synthesis - a condensation reaction is a chemical reaction in which two molecules or moieties combine to form one single mo ...
Evolving Theories of Enzyme Evolution
... cells with as little as 5% of wild-type lac2 activity can grow on lactose almost as well as does the wild type (DEAN,DYKHUIZENand HARTL 1986), so thatthe relatively low P-galactosidase activities that occur in ebg strains are nevertheless compatible with virtually normal growth. The relatively large ...
... cells with as little as 5% of wild-type lac2 activity can grow on lactose almost as well as does the wild type (DEAN,DYKHUIZENand HARTL 1986), so thatthe relatively low P-galactosidase activities that occur in ebg strains are nevertheless compatible with virtually normal growth. The relatively large ...
Directed and random mutation
... Read by next Tuesday (March 3) and come to class with a list of points you did not understand. You’ll discuss and attempt to resolve each others concerns in a small group. The aim is for us to discuss the paper on Thursday (March 5) and evaluate experiments and interpretations. To do this, you need ...
... Read by next Tuesday (March 3) and come to class with a list of points you did not understand. You’ll discuss and attempt to resolve each others concerns in a small group. The aim is for us to discuss the paper on Thursday (March 5) and evaluate experiments and interpretations. To do this, you need ...
Some transcription factors ("Enhancer
... There are coding and non coding regions in the DNA associated with genes: The non coding regions include controlling regions (promoters and transcriptional regulatory sequences), introns and polyadenylation signals. Coding regions (open reading frame) include exons sequences to be translated. Contro ...
... There are coding and non coding regions in the DNA associated with genes: The non coding regions include controlling regions (promoters and transcriptional regulatory sequences), introns and polyadenylation signals. Coding regions (open reading frame) include exons sequences to be translated. Contro ...
Chapter 11 from book
... Regulated in Operons • 11.3 Eukaryotic Genes Are Regulated by Transcription Factors and DNA Changes ...
... Regulated in Operons • 11.3 Eukaryotic Genes Are Regulated by Transcription Factors and DNA Changes ...
Agrobacterium Rhizogeneze
... Another part of Root- Inducing (Ri) plasmid encodes a protein that substitutes for virE2. ...
... Another part of Root- Inducing (Ri) plasmid encodes a protein that substitutes for virE2. ...
Chemistry PPT
... there are other chemicals that can trigger the same sensation. • We perceive sweetness when molecules of a substance attach to the “sweet” taste receptors on our tongue, triggering a message to the brain. • Many different kinds of molecules can bind to our “sweet” taste receptors, each causing a sim ...
... there are other chemicals that can trigger the same sensation. • We perceive sweetness when molecules of a substance attach to the “sweet” taste receptors on our tongue, triggering a message to the brain. • Many different kinds of molecules can bind to our “sweet” taste receptors, each causing a sim ...
1.2a Chemistry of Life
... there are other chemicals that can trigger the same sensation. • We perceive sweetness when molecules of a substance attach to the “sweet” taste receptors on our tongue, triggering a message to the brain. • Many different kinds of molecules can bind to our “sweet” taste receptors, each causing a sim ...
... there are other chemicals that can trigger the same sensation. • We perceive sweetness when molecules of a substance attach to the “sweet” taste receptors on our tongue, triggering a message to the brain. • Many different kinds of molecules can bind to our “sweet” taste receptors, each causing a sim ...
Nutrition and Ulcerative Colitis (UC)
... There is no special diet for people with UC; nor are there dietary factors known at this time to worsen or cause an increase in disease activity. Rather, the recommended diet for UC is a balanced diet focusing on adequate calories, protein, vitamins, minerals, and fluid. Therefore, there are no spec ...
... There is no special diet for people with UC; nor are there dietary factors known at this time to worsen or cause an increase in disease activity. Rather, the recommended diet for UC is a balanced diet focusing on adequate calories, protein, vitamins, minerals, and fluid. Therefore, there are no spec ...
Emergent Properties of Reduced-Genome
... to cholera toxin (CTX) was stable in MDS and unstable in WT plasmids. ...
... to cholera toxin (CTX) was stable in MDS and unstable in WT plasmids. ...
Transcription Regulation
... Combining binding data and sequence conservation data • 884-base-pair intergenic region upsteram to the gene BAP2. ...
... Combining binding data and sequence conservation data • 884-base-pair intergenic region upsteram to the gene BAP2. ...
A CAAT–Box Binding Factor Gene That Regulates Seed Development
... • Genes that need to be transcribed in large amounts. • Often absent from genes that are transcribed in almost all cells. – For example, Tubulin • A protein that makes up the microtubules which is the foundation for the cytoskeleton of the cytoplasm and is found in virtually all plant cells – Used a ...
... • Genes that need to be transcribed in large amounts. • Often absent from genes that are transcribed in almost all cells. – For example, Tubulin • A protein that makes up the microtubules which is the foundation for the cytoskeleton of the cytoplasm and is found in virtually all plant cells – Used a ...
Lac operon
lac operon (lactose operon) is an operon required for the transport and metabolism of lactose in Escherichia coli and many other enteric bacteria. Although glucose is the preferred carbon source for most bacteria, the lac operon allows for the effective digestion of lactose when glucose is not available. Gene regulation of the lac operon was the first genetic regulatory mechanism to be understood clearly, so it has become a foremost example of prokaryotic gene regulation. It is often discussed in introductory molecular and cellular biology classes at universities for this reason.Bacterial operons are polycistronic transcripts that are able to produce multiple proteins from one mRNA transcript. In this case, when lactose is required as a sugar source for the bacterium, the three genes of the lac operon can be expressed and their subsequent proteins translated: lacZ, lacY, and lacA. The gene product of lacZ is β-galactosidase which cleaves lactose, a disaccharide, into glucose and galactose. LacY encodes lactose permease, a protein which becomes embedded in the cytoplasmic membrane to enable transport of lactose into the cell. Finally, lacA encodes galactoside O-acetyltransferase. Layout of the lac operon.It would be wasteful to produce the enzymes when there is no lactose available or if there is a more preferable energy source available, such as glucose. The lac operon uses a two-part control mechanism to ensure that the cell expends energy producing the enzymes encoded by the lac operon only when necessary. In the absence of lactose, the lac repressor halts production of the enzymes encoded by the lac operon. In the presence of glucose, the catabolite activator protein (CAP), required for production of the enzymes, remains inactive, and EIIAGlc shuts down lactose permease to prevent transport of lactose into the cell. This dual control mechanism causes the sequential utilization of glucose and lactose in two distinct growth phases, known as diauxie.