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A New C-Terminal GST Vector for Protein Production in S. pombe
...est with GST. ThepESP-3 vector can also be used to express proteins without a tag for in vivoanalysis of gene function. The pESP-3 Vector figure 1 The pESP-3 vector ( figure 1 ) is a derivative of the pESP-2 vector. Similar to the pESP-1 and pESP-2 vectors, the new ...Assess the In Vivo Activation of Signal Transduction Pathways with PathDetect Reporting Systems
... control plasmid. Positive control plasmids express gene products known to activate the signaling pathway converging at the corresponding enhancer elements. The six reporter plasmids ( Figure 3 ) of the PathDetect cis-reporting systems contain tandem repeats of one of t...... sheared Ad5 DNA. 5 The cells contain and express the transforming genes of Ad5, including E1, which complements the deleted E1 gene from the pAdEasy-1 vector for assembly of replication-defective adenovirus. To confirm the presence of infectious virus, primary viral stocks w...High-Level Expression of Peanut Allergens Affected by Rare Codon Usage
...terologous proteinsthat are otherwise difficult to express in conventional E.coli hosts.When low-expression yields or low-quality recombinant protein is due to rarecodon usage, BL21-CodonPlus (DE3)-RIL cells are the hosts of choice. We usedthese special cells and greatly increased the expression yield of the...Versatile Vectors for Ponasterone A- Inducible Control of Gene Expression in Mammalian Cells
...r disease-causing genes,induce gene targeting, and express antisense RNA. Pharmaceutical companiescurrently use inducible systems to facilitate screening for inhibitors ofclinically relevant biological pathways and to explore potential applicationsfor gene therapy. 1 Most inducible mammalian systems curren...Innovative Tissue Array Technology for High-Throughput Screening of Gene Expression
...entifying the specific tissues and cell types that express a gene ofinterest. Single-Slide Whole-Animal Surveys One particularly useful application of tissue arrays is the whole-animal survey, in which all tissues and cell types in an animal species are screened. Traditional sections ...Epitope-Tagging Vectors for Functional Analysis in Yeast
... ( Figure 1 ) are specifically designed to express high levels of eukaryotic proteins in S. c...ratagenes new series of epitope-tagging vectors to express andfunctionally analyze eukaryotic genes in S. cerevisiae, high proteinlevels can be detected using ......RES-hrGFP-1a and pIRES-hrGFP-2a vectors to express epitope-tagged proteins. We used the new Vitality phrGFP-N1 and phrGFP-C vectors to express hrGFP-protein fusions that targeted specific subcellular locations. In further tests, ...Optimizing Transfection Conditions for Studying Signal Transduction Pathways
...ol plasmids. 1 The fusion trans-activatorplasmids express pathway-specific trans-activator proteins that consistof the yeast GAL4 DNA binding domain and the activation domains of varioustranscription factors. When a fusion trans-activator plasmid, reporterplasmid, and uncharacterized gene are cotransfected ...Production of Full-Length, Biologically Active MEK1WT and MEK1CA
...method forsolving the problem of degradation is to express these proteins in eukaryoticcells, such as insect ... productionof proteins in S. pombe. 9 In order to express MEK1 WT and MEK1 CA in S. pombe, the cDNAs coding for human MEK1 WT and MEK1 CA were subcloned int...Reliable Assessment of Micronuclei for Genotoxicity Testing in Mice or Rats
...ted method** is based on the observation that RETs express the transferrin receptor (i.e., the CD71-defined antigen), and fluorescent antibodies directed against these surface markers can differentially label immature erythrocytes. 9,10 When fixed blood cells are treated with...Signal Transduction Reporting Systems Using Cis-Acting Enhancer Elements
... control plasmid. Positive control plasmids express gene products known to activate the signaling pathway converging at the corresponding enhancer elements. The five reporter plasmids ( figure 1 ) of the PathDetect cis-reporting systems contain tandem repeats of one of ...Stable HeLa Luciferase Reporter Cell Lines Expressing GAL4 Fusion Transactivators
... hasdeveloped stable HeLa reporter cell lines that express the GAL4-CREB,GAL4-Elk1, or GAL4-cJun. In the HLR-CREB, HLR-Elk1, and HLR-cJun cell lines,luciferase activity reflects the activation status of the chimeric trans-activatorprotein and, therefore, the respective signaling pathways. By performing simpl...pFB-ERV: Retroviral Delivery of the Ecdysone Receptor Proteins
...nd labor required to screen for stable clones that express thereceptors at optimal levels, particularly for cell types that are normallydifficult to transfect. However, for difficult-to-transfect cell types, deliveryof the receptors with the pFB-ERV virus only solves half the problem. Currently,the ecdysone-...Codon Bias-Adjusted BL21 Derivatives for Protein Expression
...-levelexpression of proteins that are difficult to express in conventional E. colihosts due to the codon bias... Figure 1 , BL21-CodonPlus(DE3)-RIL cells express hcTnT-wt at the same level observed for the codon-adjusted hcTnT-mut in conventional ...hNT BlueNeurons Express b-Galactosidase at High Levels
... Gilroy, California Stratagene's hNT BlueNeurons express beta-galactosidase at high levels andare derived f...y, acquire many neuronal markers, begin to express glutamate receptor channels, change the metabolism of amyloid precursor proteins and become ...High-Titer Retroviral Vectors for Gene Delivery
...to the hostDNA. Because the vector itself does not express viral proteins, once a targetcell is infected, the LTR expression cassette is incapable of proceeding throughanother round of virus production. Vector Description Fig.2 The vectors pFB and pFB-Neo were des...Improved Vectors for PathDetect Trans-Reporting Systems
...ich facilitatesselection of stable cell lines that express fusion trans-activatorproteins. Improved Fusion T...n the GAL4 DNA binding domain sequence and doesnot express protein from the CMV promoter. The pFR-Luc plasmid (0.5 g) and pFC-MEKK (25 ng) plasmid wer...Mammalian and Bacterial Expression in One Vector
...To test the ability of the pDual vector to express the GFP reporter in both prokaryotes and eukaryote...-1 construct into BL21(DE3) competent cells, which express the T7 RNA polymerase, and into mammalian tissue culture cells, respectively. Figures ...Sequence-Validated and Expression-Tested Human cDNA in a Dual Expression Vector
.... Epitope and Purification Tags All clones express a fusion protein consisting of the protein encoded by the cDNA insert, the thrombin cleavage site, three copies of the c-myc epitope tag, and a single copy of the HIS6 purification tag ( Figure 1). The c-myc epitope is derived...New Fusion Trans-Activator Plasmids for Studying Signal Transduction Pathways
...smids. The fusion trans-activator plasmids express pathway-specific trans-activator proteins that con...ch facilitates selection of stable cell lines that express the fusion trans-activator protein of interest. The backbone of the pFA-CMV plasmid was der...Single-cell RT-PCR Analysis of Paramecium Primaurelia with the Eppendorf cMaster RTplusPCR System
...lls. The various species of Paramecium can express a series of immobilized antigens. Twelve proteins for Paramecium tetraurelia and three for Paramecium primaurelia are known. These proteins, coded by distinctive genes, are subject to "mutual exclusion expression. This means t......ional analysis. Knowledge of tissues and cellsthat express particular genes is key to understandinggene function. Microarrays and similar high-throughput gene expressiontechnologies are well established and widely usedto determine the expression of large numbers of genes in parallel. Thei......t is passed on in thecell lineage and continues to express the encoded gene of interest.More commonly used is transienttransfection, in which highercopy numbers of the foreign DNAand hence higher levels of geneexpression are present in the cellfor a brief period of time. Thereare several methods available fo......activity data by cell number allowed us to express data as caspase 3 activity per cell. As expected, reducing expression of several kinases inhibited activation of caspase 3 by etoposide, suggesting that these kinases play a role in apoptosis (Figure 4). Consistent with the ce...Cancer-Related miRNAs Uncovered by the mirVana miRNA Microarray Platform
...correct. In these experiments, cultured cells that express undetectable levels of the miRNA were tran.... In a reciprocal experiment, cells that naturally express high levels of the miRNA were transfected with the Anti-miR miRNA Inhibitor for the ...Choose the Right Transfection Agent for Your RNAi Experiment
... Figure 1. In this figure, a plasmid designed to express -galactosidase was transfected into HeLa c...plasmid, p Silencer 2.0-U6, engineered to express an siRNA to GAPDH. Silencing effects were analyzed at the mRNA level by Northern blot 72 hou...GENE SILENCING WITH PCR PRODUCTS
... Work The use of PCR products to express siRNAs in mammalian cells was recently des...rent promoters can be tested for their capacity to express active siRNAs in the cells being used. Based on published reports, the activities of...... DNA-based vectors and cassettes that express siRNAs within the cells. Table 1... be tested for their capacity to express active siRNAs in a specific cell line. Ambion's Silencer Express Kits ......09">p Silencer 2.0-U6 ) engineered to express either the GAPDH siRNA or a scrambled cont...cted with p Silencer 2.0-U6 engineered to express either an siRNA targeting GAPDH or a negative control siRNA (SCR). Three days after transfec...Delivering siRNA Using Adenoviral Vectors
..., so adenoviruses can be used to express RNA in both dividing and non-dividing cells. ...th p Silencer adeno 1.0-CMV engineered to express the corresponding siRNAs. In both examples, protein levels were reduced ~90% compared to non...Optimizing Chemical Transfection and Electroporation of siRNAs
...s. siRNAs or DNA constructs that express siRNAs can be transiently transfected into mammalian cells using standard techniques. However, obtaining efficient siRNA delivery by chemical transfection or electroporation is not trivial and may...Drive Long-Term Silencing with CMV Vectors
... transfection/selection experiment will either express the siRNA or the antibiotic resistance gene but rarely express both. To overcome this potential problem, we have constructed th...pSilencer 4.1-CMV: Versatile Vectors for Expression of siRNA, miRNA, and mRNA
...atile vector that can be used to express siRNA as well as microRNA (miRNA) ... a p Silencer 4.1-CMV vector was engineered to express a hairpin siRNA targeting GAPDH. This construct was then transfe...Enhanced siRNA Delivery and Long-term Gene Silencing
...lymerase III promoters to stably express siRNAs, even in difficult-to-tra...y reduced when the U6 promoter was used to express BRCA-1 siRNA compared to the H1 promoter. Figure 1. Gene Silencing After ...More siRNA Vectors for RNA Interference
...uman U6 promoter that has been used extensively to express siRNAs and ribozymes in mammalian cells. p Silencer 3.0-H1 features the H1 RNA promoter (a component of RNase P). The p Silencer 2.0-U6 and 3.0-H1 siRNA expression vectors are linearized with two diff...Precursor miRNAs for Successful miRNA Functional Studies
...etic miRNAs [9] or plasmids that express miRNAs [10]. The use of syntheti...A was not used because all but HepG2 cells express high levels of let-7b that would mask the effects of the synthetic miRNA. The miR-33 off-str...Recommendations for Successful siRNA Library Screens
...rences between cell types. Different cells express different genes and feature different cellular pathways. Depending on the assay being used, it is likely that different cell types will reveal different hits. This points to the importance of selecting appropriate cells for th......based vectors and cassettes that express siRNAs within cells 4. Expression from a plasmid 5. Expression from a viral vector 6. Expression from a PCR product All of these methods, except creation of ...siRNA Expression Vectors with Selectable Markers
...A Expression Vectors Work Vectors that express siRNAs within mammalian cells typically us...raction of the transfected cells express the siRNA, and reduction in target gene expression with even a potent siRNA can be...Superior Gene Silencing Using Adenoviral Vectors
...al Vector (1). Adenovirus engineered to express an siRNA targeting GFP (A, top panels) or a negati... to infect PC12 cells that had been created to express normal (Q28) or (Q166) mutant ataxin-3. Again, the viruses were able to specifically target ...The let-7 microRNA Family Regulates RAS: Implications for Development and Oncogenesis
... were monitored. HepG2 cells, which do not express let-7 at levels detectable by microarray...l experiments, HeLa cells, which express high levels of let-7a , were transfected with a synthetic, antisense RNA to let-...Unmask Blood RNA for Gene Expression Profiling
...om a cultured cell line (HeLa cells) that does not express high levels of globin (left two bars). In contrast, the GLOBINclear Kit rescued the decreased gene detection observed when exogenous globin transcripts were spiked into the HeLa RNA samples. Total RNA was isolated from human ...... 2002; Sdhof, 2002) of which vertebrates express at least 15 isoforms (Sdhof & Rizo, 1996; Rickman et al., 2004). Insulin exocytosis from pancreatic β cells is a Ca 2+ -dependent secretory process. However, previous studie...RNA Interference and Gene Silencing: History and Overview
...ing nematodes bacteria that had been engineered to express dsRNA homologous to the C. elegans unc-22... developed expression vectors to continually express siRNAs in transiently and stably transfected mammalian cells (<A href="#50">50-5...Commercial Plasmid Preparation Methods Yield DNA With Different Transfection Capabilities
... successfully transfected with the pHSVlac plasmid express lacZ. Following overnight incubation, duplicate plates of transfected cells were used for X-gal staining and for chemiluminescent b-galactosidase activity measurements to assess transfection efficiency. The lacZ-expressing ...Quantitative Analysis of Protein-DNA Associations in Vivo Using Real-Time PCR, Rev A
...;-cells in the mature mouse pancreas. β-cells express a unique set of genes, including insulin, glucose transporter type 2 (Glut2), islet amyloid polypeptide (IAPP), and glucokinase (GK). Several functional studies have implicated a direct role for Pdx1 in the specific activation...Proteomics in Bladder Cancer Research: Protein Profiling of Bladder Squamous Cell Carcinomas, Rev C
... to keratins 13 and 19. In general, SCCs do not express keratins 7, 8, and 18, but many express abundant levels of keratin 19, which does not seem to be expressed by pure SCCs. Figure 3 sh...The Bio-Rad Silver Stain, Rev E
... 82. Van Zoelen EJ et al., Neuroblastoma cells express c-sis and produce a transforming growth factor antigenically related to the platelet-derived growth factor, Mol Cell Biol 5, 22892297 (1985) 83. Vauhkonen M et al., Solubilization of proteins in dimethyl sulfoxide by pe...Biolistic Transfection of Organotypic Brain Slices
...ultiple types of DNA constructs, dissociated cells express the appropriate protein products by 24 hou...cultured PC12 cells, which normally do not express the neurotrophin receptor TrkC, were co-transfected with two expression constructs. One cons......st, convenient, and efficient procedure to express foreign DNA using only a minimal amount of plasmids. References 1. Klein, T. M., Arentzen, R., Lewis, P. and Fitzpatrick-McElligot, S., Transformation of microbes, plants, and animals by particle bomb......ffect the number of cells that transiently express anthocyanin, it did reduce tissue damage and ...ich have been transformed, divide, and continue to express the anthocyanin gene in the daughter cells. Each stable sector has the potential of ......ry. However, establishing stable cell systems that express target genes of interest at detectable levels can present a genuine challenge. As a way forward, the use of adenoviral vectors to deliver genes and generate transient expression of key gene targets in cells provides an alternative method to technique...Performance of Ad-A-Gene EGFP-MAPKAP-k2: an adenoviral vector gene delivery system
...al challenges. Establishing stable cell systems to express target genes of interest at detectable levels is time-consuming. In addition, cellular signaling is complex, with data often difficult to interpret reproducibly. <p >Engineered adenoviral vectors mitigate these challenges by providing facile ......al challenges. Establishing stable cell systems to express target genes of interest at detectable levels takes time. In addition, cellular signaling is complex and some data can be difficult to interpret reproducibly. <p >Adenoviral vectors mitigate these challenges by providing a way to deliver gene...Laser Capture Microdissection of Cells Labeled with Enhanced Green Fluorescent Protein
... During dissection, embryos in a litter that express EGFP in a pattern specific to neural crest cells can be identified by fluorescent stereo microscopy prior to fixation and embedding in OCT (Figure 1). EGFP-labeled neural crest cells can be identified and captured by LCM from partially fixed cryosect...Increase Your Organizations Productivity with LabVIEW
...n, through the dataflow technology. Additionally, express technology, introduced with LabVIEW 7 Express, provides a simplified, configuration-based approach to LabVIEW development that makes programming easier than ever. 3. Complete Functionality Ease of use is not the only factor that prov...A Mix-and-Read Cell-Based Assay for Hybridoma Screening Using the FMAT 8100 HTS System
...imultaneous screen using control cells that do not express cell surface antigen did not yield any hits. The FMAT software allows the results to be viewed in several different formats (Figure 1, panels A-D) for simple and unambiguous selection of positive wells. In addition, a tab-delineated file cont......most common leukemias. The B cells of these donors express an unmutated variable region of the Ig heavy chain... More recent work has shown that these donors also express ZAP-70 and that this may be a better marker indicating the aggressive form of the disease 4,5 . Furt......1). Since approximately 75 % of the cells actually express GFP, this translates to a detection limit of roughly 4,690 GFP-expressing cells/well. A set of experiments was designed to compare two types of microplates for their ability to detect a 1 M fluorescein solut...Other ContentslavagelavagelavagelavagecystcystcystganglionganglionganglionganglionunionunionunionunionservicesservicesservicesservicesservicesservicesservicesservicesserviceswelfarewelfarehospitalhospitalhospitalhospitalhospitalhospitalhospitalhospitalOther Tags
(Date:7/24/2008)...rom Novel Structure Proteins (NSP), a new family o...stitute for Cancer Research and Molecular Medicine...hnology, could be involved in apoptosis or program...rs ago by Nianli Sang, then a doctoral student at ...homas Jefferson University and the Cardeza Foundat...
(Date:7/24/2008)...ppression may have reduced carbon storage in weste... the early twentieth century has caused a widespre...s, and the density of stems growing on trees withi... thicker forests and are thought to account for mu...ify changes in aboveground biomass, Fellows and Go...
(Date:7/23/2008)...udy of parasites living in three estuaries on the ...esearchers have determined that biomass of these p...ses by more than 20 times. , Their findings, whi...l implications, appear in this week,s issue of the...ving matter that exists in a given habitat. It is ...
(Date:7/23/2008)...ara, Calif.) - In a study of free-living and paras...st of California and Baja California, a team of re... Barbara, the United States Geological Survey, and... biomass in those habitats exceeds that of top pre...dings, which could have significant biomedical and...
Breaking Biology News(10 mins):Novel structure proteins could play a role in apoptosis 2AGU journal highlights -- July 23, 2008 2AGU journal highlights -- July 23, 2008 3AGU journal highlights -- July 23, 2008 4AGU journal highlights -- July 23, 2008 5AGU journal highlights -- July 23, 2008 6AGU journal highlights -- July 23, 2008 7AGU journal highlights -- July 23, 2008 8Parasites outweigh predators in Pacific Coast estuaries 2Parasites outweigh predators in Pacific Coast estuaries 3Study shows parasites outweigh predators 2Study shows parasites outweigh predators 3Brains timing linked with timescales of the natural visual world 272 1Brains timing linked with timescales of the natural visual world 272 2Childrens Memorial Hospital in Chicago Announces 24100 Million Gift from Philanthropist Ann Lurie 597 1Childrens Memorial Hospital in Chicago Announces 24100 Million Gift from Philanthropist Ann Lurie 597 2Childrens Memorial Hospital in Chicago Announces 24100 Million Gift from Philanthropist Ann Lurie 597 3Medical Malpractice at Sea 592 1Medical Malpractice at Sea 592 2New study shows greenback cutthroat trout involved in recovery effort misidentified 271 1New study shows greenback cutthroat trout involved in recovery effort misidentified 271 2New study shows greenback cutthroat trout involved in recovery effort misidentified 271 3(Date:7/25/2008)...K, Ill. July 25, 2008 The American Society for ...lines on the role of endoscopy in the bariatric su... the United States and the success in surgical int...of weight-loss surgeries performed in the U.S., fr...es discuss endoscopy in the preoperative patient a...
(Date:7/25/2008)...nCotter Releases Results of Fourth Annual Physicia...ey, DETROIT, July 25 /PRNewswire/ -- Sullivan, Co... annual survey of physician on-call pay rates and,...eport. The survey report,with data from 132 healt...,on-call pay practices and rates paid for 33 physi...
(Date:7/25/2008)...Kesson Corporation Executive, Robert J. Reilly, Jo... -- Aethon Inc.,( http://www.aethon.com ), the lea...ply chain logistics, today announced that Robert J...sident -- Chief Financial Officer., Reilly, who w... for,McKesson Corporation,s Specialty Pharmacy Div...
(Date:7/25/2008)...AD, Calif., July 25 /PRNewswire/ -- AutoGenomics, ...ion statement on Form S-1 with the,Securities and ...al public,offering of shares of its common stock. ..., all of which are expected to be offered by,AutoG...g, have not yet been,determined., J.P. Morgan Sec...
Breaking Medicine News(10 mins):Health News:ASGE issues guidelines on the role of endoscopy in the bariatric surgery patient 2Health News:ASGE issues guidelines on the role of endoscopy in the bariatric surgery patient 3Health News:Hospital Expenditures for Physician On-Call Pay Rates Nearly Double 2Health News:Hospital Expenditures for Physician On-Call Pay Rates Nearly Double 3Health News:Aethon, Inc. Names New Chief Financial Officer 2Health News:AutoGenomics, Inc. Files Registration Statement for Initial Public Offering 2CartridgesDepletion3100AvantMALDITOFAveragingSpecificationsCYP2C9CYP3A4PhenoxypropionicPhenoxyaceticDNFFlavonoidDinitroRitanserin
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