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Relevant bibliographies by topics / Lactose operon

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Academic literature on the topic 'Lactose operon'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 April 2022

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Journal articles on the topic "Lactose operon"

1

Szeberényi, József. "Lactose operon mutants." Biochemistry and Molecular Biology Education 30, no. 6 (2002): 420–21. http://dx.doi.org/10.1002/bmb.2002.494030060092.

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Mackey, Michael C., Moisés Santillán, and Necmettin Yildirim. "Modeling operon dynamics: the tryptophan and lactose operons as paradigms." Comptes Rendus Biologies 327, no. 3 (2004): 211–24. http://dx.doi.org/10.1016/j.crvi.2003.11.009.

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Szeberenyi, Jozsef. "cAMP Regulation of the lactose operon." Biochemistry and Molecular Biology Education 32, no. 3 (2004): 198–99. http://dx.doi.org/10.1002/bmb.2004.494032030349.

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Abranches, Jacqueline, Yi-Ywan M. Chen, and Robert A. Burne. "Galactose Metabolism by Streptococcus mutans." Applied and Environmental Microbiology 70, no. 10 (2004): 6047–52. http://dx.doi.org/10.1128/aem.70.10.6047-6052.2004.

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ABSTRACT The galK gene, encoding galactokinase of the Leloir pathway, was insertionally inactivated in Streptococcus mutans UA159. The galK knockout strain displayed only marginal growth on galactose, but growth on glucose or lactose was not affected. In strain UA159, the sugar phosphotransferase system (PTS) for lactose and the PTS for galactose were induced by growth in lactose and galactose, although galactose PTS activity was very low, suggesting that S. mutans does not have a galactose-specific PTS and that the lactose PTS may transport galactose, albeit poorly. To determine if the galact

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Vaughan, Elaine E., R. David Pridmore, and Beat Mollet. "Transcriptional Regulation and Evolution of Lactose Genes in the Galactose-Lactose Operon of Lactococcus lactisNCDO2054." Journal of Bacteriology 180, no. 18 (1998): 4893–902. http://dx.doi.org/10.1128/jb.180.18.4893-4902.1998.

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ABSTRACT The genetics of lactose utilization within the slow-lactose-fermenting Lactococcus lactis strain NCDO2054 was studied with respect to the organization, expression, and evolution of the lac genes. Initially the β-galactosidase gene (lacZ) was cloned by complementation of an Escherichia coli mutant on a 7-kb HpaI fragment. Nucleotide sequence analysis of the complete fragment revealed part of a gal-lac operon, and the genes were characterized by inactivation and complementation analyses and in vitro enzyme activity measurements. The gene order isgalK-galT-lacA-lacZ-galE; the gal genes e

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Nanavati, Dhaval M., Tu N. Nguyen, and Kenneth M. Noll. "Substrate Specificities and Expression Patterns Reflect the Evolutionary Divergence of Maltose ABC Transporters in Thermotoga maritima." Journal of Bacteriology 187, no. 6 (2005): 2002–9. http://dx.doi.org/10.1128/jb.187.6.2002-2009.2005.

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ABSTRACT Duplication of transporter genes is apparent in the genome sequence of the hyperthermophilic bacterium Thermotoga maritima. The physiological impacts of these duplications are not well understood, so we used the bacterium's two putative maltose transporters to begin a study of the evolutionary relationship between a transporter's function and the control of expression of its genes. We show that the substrate binding proteins encoded by these operons, MalE1 and MalE2, have different substrate specificities and affinities and that they are expressed under different growth conditions. Ma

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RAWLS, REBECCA. "LACTOSE OPERON REPRESSOR Elusive structure finally determined." Chemical & Engineering News 74, no. 10 (1996): 4. http://dx.doi.org/10.1021/cen-v074n010.p004.

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Sendy, Bandar, David J. Lee, Stephen J. W. Busby, and Jack A. Bryant. "RNA polymerase supply and flux through the lac operon in Escherichia coli." Philosophical Transactions of the Royal Society B: Biological Sciences 371, no. 1707 (2016): 20160080. http://dx.doi.org/10.1098/rstb.2016.0080.

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Chromatin immunoprecipitation, followed by quantification of immunoprecipitated DNA, can be used to measure RNA polymerase binding to any DNA segment in Escherichia coli . By calibrating measurements against the signal from a single RNA polymerase bound at a single promoter, we can calculate both promoter occupancy levels and the flux of transcribing RNA polymerase through transcription units. Here, we have applied the methodology to the E. coli lactose operon promoter. We confirm that promoter occupancy is limited by recruitment and that the supply of RNA polymerase to the lactose operon prom

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Michel, Denis. "Kinetic approaches to lactose operon induction and bimodality." Journal of Theoretical Biology 325 (May 2013): 62–75. http://dx.doi.org/10.1016/j.jtbi.2013.02.005.

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Reznikoff, William S. "The lactose operon-controlling elements: a complex paradigm." Molecular Microbiology 6, no. 17 (2006): 2419–22. http://dx.doi.org/10.1111/j.1365-2958.1992.tb01416.x.

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Dissertations / Theses on the topic "Lactose operon"

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Carmichael, C. S. J. "Decomposition of the lactose operon." Thesis, University of Edinburgh, 1992. http://hdl.handle.net/1842/13315.

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The immediate aims of the project, as set out in the introduction, were 1) to separate the <i>lacZ</i> and <i>lacY</i> genes of the lactose operon such that they could be controlled/induced independently 2) to maintain the expression construct in the <i>E.coli</i> chromosome. The <i>lacY</i> gene was subcloned into plasmid PBN372 downstream of the <i>S.marsescens trp</i> promoter. The flanking <i>E.coli trp</i> genes were exploited to integrate the construct into the <i>E.coli</i> chromosome at the <i>trpB</i> locus via homologous recombination. Homologous recombinants should be <i>trp<SUP>{-}

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Ford, Kelsey L. "Knockout of the lacZ gene in Enterobacter sp. YSU." Youngstown State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1534337870735813.

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Upadhyay, Manisha. "The flp operons of Lactococcus lactis." Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274956.

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Eschenlauer, Arthur Copeland. "Activation of initiation of transcription of the E. coli lactose operon by catabolite-gene activator protein." 1991. http://catalog.hathitrust.org/api/volumes/oclc/25662568.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1991.<br>Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 81-88).

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Tsai, Yu-Kuo, and 蔡昱果. "Sequence and Regulation of Lactose and Galactose Operons in Lactobacillus rhamnosus and a point mutation that causing phenotype switch of lactose metabolism in Lactobaxillus casei." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/20782079376214796379.

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博士<br>國立清華大學<br>生命科學系<br>96<br>A gene cluster containing nine ORFs involved in the metabolism of lactose and galactose in L. rhamnosus TCELL-1 was sequenced and characterized. The order of the ORFs was lacTEGF and galKETRM. Northern blotting experiments revealed that the gene cluster could be transcribed as one lacTEGF-galKETRM mRNA though there were three major transcripts (lacTEGF, galKETRM and galETRM) detected for the gene cluster. The transcription of the lac or gal operon was independently induced in the presence of lactose or galactose. Northern blotting and primer extension experiments

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Books on the topic "Lactose operon"

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The lac Operon: A short history of a genetic paradigm. Walter de Gruyter, 1996.

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Sabri, Omar, and Martin Bircher. Management of limb and pelvic injuries. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0336.

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Pelvic ring injuries can be life and limb threatening. The mechanism of injury can often be a good indicator of the type of injury; the Young & Burgess classification deploys that concept to full effect. Early identification based on mechanism of injury and improved prehospital care can play a major role in the outcome following such injuries. Pelvic ring injuries can lead to significant haemorrhage. Mechanical measures to stabilize the pelvis, in addition to modern concepts of damage control resuscitation (DCR), have been shown to be effective in early management of potentially life-threa

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Book chapters on the topic "Lactose operon"

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Mackey, Michael C., Moisés Santillán, Marta Tyran-Kamińska, and Eduardo S. Zeron. "The Lactose Operon." In Lecture Notes on Mathematical Modelling in the Life Sciences. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45318-7_5.

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Dean, Antony M. "Molecular Adaptation in the Lactose Operon." In Control of Metabolic Processes. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4757-9856-2_35.

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Pinto, Marcelo Cezar, Luciana Foss, José Carlos Merino Mombach, and Leila Ribeiro. "Modeling and Property Verification of Lactose Operon Regulation." In Advances in Bioinformatics and Computational Biology. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11532323_11.

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Tian, Tianhai, and Kevin Burrage. "A Mathematical Model for Genetic Regulation of the Lactose Operon." In Computational Science and Its Applications – ICCSA 2005. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11424826_132.

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Bose, Sminu, Cissy Zhang, and Anne Le. "Glucose Metabolism in Cancer: The Warburg Effect and Beyond." In The Heterogeneity of Cancer Metabolism. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65768-0_1.

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AbstractOtto Warburg observed a peculiar phenomenon in 1924, unknowingly laying the foundation for the field of cancer metabolism. While his contemporaries hypothesized that tumor cells derived the energy required for uncontrolled replication from proteolysis and lipolysis, Warburg instead found them to rapidly consume glucose, converting it to lactate even in the presence of oxygen. The significance of this finding, later termed the Warburg effect, went unnoticed by the broader scientific community at that time. The field of cancer metabolism lay dormant for almost a century awaiting advances in molecular biology and genetics, which would later open the doors to new cancer therapies [2, 3].

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"The Lactose Operon in Escherichia coli." In Cell and Biomolecular Sciences. CRC Press, 2001. http://dx.doi.org/10.1201/9780203166314.ch9.

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"Genes." In Examining the Causal Relationship Between Genes, Epigenetics, and Human Health. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8066-9.ch009.

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Gene expression patterns are dependent on their internal cell environment of their DNA, their immediate internal cell environment, and the integrity of their DNA. It also depends on the cell's external environment comprised of signals from other parts of the body including chemicals, nutrients, and/or mechanical stress. Gene regulation is achieved by a wide range of mechanisms that cells use to control whether genes are transcribed, when they are transcribed, and to regulate the quantity of certain proteins based on the cellular and/or environmental feedback. Proper regulation of gene expression is required by organisms to respond to continually changing environmental conditions. Some bacterial genes are transcribed as a unit under a regulatory system called an operon which contains functionally related genes. Three well studied operons include the lactose operon, histidine operon, and tryptophan operon. Gene regulation in higher organisms can occur at various stages from DNA level to protein assembly. This chapter explores this aspect of genes.

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Robeva, Raina, Bessie Kirkwood, and Robin Davies. "Mechanisms of Gene Regulation: Boolean Network Models of the Lactose Operon in Escherichia coli." In Mathematical Concepts and Methods in Modern Biology. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-12-415780-4.00001-6.

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Robeva, Raina, and Necmettin Yildirim. "Bistability in the Lactose Operon of Escherichia coli: A Comparison of Differential Equation and Boolean Network Models." In Mathematical Concepts and Methods in Modern Biology. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-12-415780-4.00002-8.

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Taber, Douglass F. "The Tan/Chen/Yang Synthesis of Schindilactone A." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0088.

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Schindilactone A 3 is one of a closely related family of polycyclic lactones that have been used in China for the treatment of rheumatic disease. The synthesis of 3 reported (Angew. Chem. Int. Ed. 2011, 50, 7373) by Ye-Feng Tang of Tsinghua University and Jia-Hua Chen and Zhen Yang of Peking University is an elegant tour of metal-mediated bond construction, as exemplified by the cyclization of 1 to 2. The preparation of 1 began with the Diels-Alder reaction of 4 with the butadiene 5. Addition of methyl magnesium chloride converted 6 to the crystalline lactone 7. Angular hydroxylation followed by ring expansion gave the bromo enone 8, which was homologated to the lactone 11. Apparently, the bulky silyloxy group directed the addition of the butenyl Grignard reagent 10 to the top face of the ketone carbonyl. Hydroxylation of the lactone followed by the addition of 12 then gave 1 as a mixture of diastereomers. Only one of the two diastereomers of 1 could undergo ring-closing metathesis to form the second of the three carbocyclic rings of 3. The two lactol diastereomers were in equilibrium with each other by way of the open-chain enone. When MgBr2 was added to encourage equilibration, the metathesis proceeded to completion to give 2. The tertiary alcohol of 2 was esterified with 2-butynoic acid to give 13. Intramolecular Pauson-Khand cyclization, using the optimized protocol developed by the authors, then delivered the enone 13, completing the last carbocyclic ring of 3. The last remarkable metal-mediated reaction in the synthesis was the oxidative carbonylation of 14 to 15. It is not clear if the postcarbonylation event is direct Pd-mediated C–O bond formation or the intramolecular addition of alkoxide to a transient butenolide. To complete the synthesis, 15 was methylated, then deprotonated and kinetically quenched to set the proper relative configuration of the last methyl group. Remarkably, despite the presence in the molecule of three other acidic protons, including the one that had just been removed and kinetically reset, exposure of the acetate 16 to a large excess of base, followed by oxidation, gave clean conversion to schindilactone A 3.

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Conference papers on the topic "Lactose operon"

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WANG, SHAOPING, and WEIJIE WANG. "A Dynamic Multiple Input Description of Lactose Operon Expression." In Sixth International Conference on Advances in Bio-Informatics, Bio-Technology and Environmental Engineering - ABBE 2018. Institute of Research Engineers and Doctors, 2018. http://dx.doi.org/10.15224/978-1-63248-148-1-02.

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Lu, Lili, and Hongwei Lou. "Mathematical Description of the Lac Operon Regulation in Diauxic and Non-Diauxic Growth on Glucose and Lactose." In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5163028.

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Pannekok, H., A. J. Van Zonneveid, C. J. M. de vries, M. E. MacDonald, H. Veerman, and F. Blasi. "FUNCTIONAL PROPERTIES OF DELETION-MUTANTS OF TISSUE-TYPE PLASMINOGEN ACTIVATOR." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643724.

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Over the past twenty-five years, genetic methods have generated a wealth of information on the regulation and the structure-function relationship of bacterial genes.These methods are based on the introduction of random mutations in a gene to alter its function. Subsequently, genetic techniques cure applied to localize the mutation, while the nature of the impairedfunction could be determined using biochemical methods. Classic examples of this approach is now considered to be the elucidation of the structure and function of genes, constituting the Escherichia coli lactose (lac) and tryptophan (

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Dong, Su, Xuesong Song, Meng Jin, Haichun Ma, and Jia Liu. "Effects of Infusion of Acetated Ringer's Solution on Serum Electrolytes, Lactate and Body Temperature in Elderly Patients Undergoing Septic Shock Opertion." In 2015 7th International Conference on Information Technology in Medicine and Education (ITME). IEEE, 2015. http://dx.doi.org/10.1109/itme.2015.53.

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Reports on the topic "Lactose operon"

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Joel, Daniel M., John C. Steffens, and Alfred M. Mayer. Host-Elicited Germination and Mechanism of Penetration in Broomrape (Orobanche Spp.). United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568107.bard.

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Orobanche is an important parasitic weed. For developing novel methods for its control, a thorough understanding of crucial stages of its development is needed. Therefore, the objectives of this project were characterization of Orobanche germination stimulants, analysis of mechanisms of haustorial penetration, and characterization and isolation of penetration enzymes. The first highly potent natural germination stimulant for Orobanche was isolated from sunflower and identified by high-field 1D (1H and 13C), 2D (1H-1H COSY, HMQC, HMBC)-NMR, GC.FT-IR, and GC.MS as costuslactone, a guaiane type s

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