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New Mammalian Two-Hybrid System Detects Protein-Protein Interactions
...( Figure 3 , Panel A). The transactivating potential of the GAL4 BD-p65 fusion proteins was tested by cotransfection with a luciferase reporter construct that contains the luciferase gene downstream of five GAL4 binding sites (pFR-Luc: PathDetect reporter plasmid). Our results...Assess the In Vivo Activation of Signal Transduction Pathways with PathDetect Reporting Systems
...tect cis-reporting systems assess only the potential involvement of a gene product in a pathway. A drawback of cis-reporting systems is the higher background of luciferase expression, which is caused by the binding of endogenous transcription factors to the enhancer elements ...Detect Single Nucleotide Sequence Changes with Mx4000 Molecular Beacon Allelic Discrimination Kits
...ed molecular beacontechnology has demonstrated the potential to meet such a challenge. 1,2 Fig.1 Molecular beacons are hairpin-shaped oligonucleotide probes that fluoresce when they hybridize to their target ( Figure 1 ). The hairpin shape of the molecular beacon causes misma...Control RT-PCR Primers for Human Gene Transcripts with Varying Abundance
... limited tissue expression patterns. To solve this potential problem, wedeveloped primer pairs for several different low-abundance gene transcripts,each of which exhibited broad but not universal tissue expression. Hence,choosing the appropriate low-abundance primer set must be individuallydetermined. How the...Versatile Vectors for Ponasterone A- Inducible Control of Gene Expression in Mammalian Cells
...ically relevant biological pathways and to explore potential applicationsfor gene therapy. 1 Most inducible mammalian systems currently available employ either naturalpromoters that are induced by heavy-metal ions, heat shock, growth factors, andsteroid hormones or employ synthetic promoters and inducible ac...Optimized Imaging of Protein Gels Stained with Coomassie Brilliant Blue Dye
...re 1C ). However, this method also has the potential of increasing nonspecific background. When the ethidium bromide filter was used in conjunction with overhead white-light illumination and a piece of white plastic, sensitivity was increased when compared to the ethidium bromid...Pfu DNA Polymerase as a Hot Start Alternative
... ( figure 2 ), Taq DNA polymerase has a greater potential for extending mispaired primers that anneal during these three low-temperature phases of PCR amplification. Hot start PCR protocols have been developed to reduce or prevent mispairedprimer-extension reactions from occurring prior to ...Reliable Assessment of Micronuclei for Genotoxicity Testing in Mice or Rats
...essed for both mutagenic and clastogenic/aneugenic potential within the sameanimal. REFERENCES Matter, B. and Schmid, W. (1971) Mutation Res. 12: 417-425. Heddle, J. (1973) Mutation Res. 18: 187-190. MacGregor, J., et al. (1983) In A.W. Hayes, R.C. Schnell and T.S. Miya (Eds.)...Sex Steroid Regulation of Vasopressin Levels Secreted by hNT Neurons*
...nscription and synthesis. Preliminary data showthe potential of this model system. The normal, physiological aging of the human brain has been associated withcellular atrophy and cell death. Sex differences in the aging brain have beendocumented by magnetic resonance imaging, 1 suggesting thatage-related cha...Stable HeLa Luciferase Reporter Cell Lines Expressing GAL4 Fusion Transactivators
...can be studied directly, without transfection. The potential applications ofthese cell lines include studying signal transduction and transcriptionmechanisms and assessing protein-protein interactions in mammalian cells. Inaddition, these cell lines can potentially be adapted for high-throughput drugscreening....pFB-ERV: Retroviral Delivery of the Ecdysone Receptor Proteins
...ors of clinicallyrelevant biological pathways, and potential applications for gene therapy arebeing explored. 1... cell types, and inactivation of the 5LTR obviates potential interference with the CMV promoter; the CMV promoter canbe readily replaced with a cell-type promote...Fractionating DNA Fragments Generated by Differential Display PCR
...Application ofDDPCR to allergic disease provides a potential means for elucidating themechanisms involved in allergic responses. In order to successfully apply DDPCR,high-quality, reproducible denaturing polyacrylamide gels are required tofractionate PCR fragments. Stratagenes CastAway system*is convenient a...High-Fidelity PCR with a Novel Polymerase Mixture
...ility of a second enzyme to extend a primerthrough potential template obstructions. These potential obstructions includemispaired bases that cause nonproofreading polymerases to stall prematurely andd...hNT BlueNeurons Express b-Galactosidase at High Levels
...y in four representative clones, and their potential for differentiation into neurons was evaluated. Clones were selected according to their ability to proliferate at a sufficient rate and their ability to stably express beta-galactosidase. beta-galactosidase Expression by hNT Neurons ...High-Titer Retroviral Vectors for Gene Delivery
...nterest is efficiently expressed. Furthermore, the potential loss oftiter due to inclusion of an exogenous promoter between the LTRs 6,7 is avoided by coexpressing both proteins from a single transcript. In light of published reports showing that a significant increase in titer isachieved by minimizing the am...Keys to Successful Densitometry
...hatare much larger than bands of interest have the potential to magnify errors dueto small variances in background levels. In order to compare integrated density measurements for determining relativeintensities between bands or spots on the same image, sample areas should bekept the same size. If the dimensio...Mammalian Expression Vector for Efficient Cloning of PCR Fragments
...verified usinga test gene. To reduce the number of potential mutations that result during PCRamplification and to generate blunt-ended DNA fragments, we chose Pfu DNApolymerase for PCR amplification of the ampicillin-resistancegene. The pCMV-Script vector was digested with Srf I restrictionendonuclease and l...Sequence-Validated and Expression-Tested Human cDNA in a Dual Expression Vector
...ere selected based on theirbiological function and potential applications. They include kinases,DNA-binding proteins, transferases, transporters, oncogenes, cytochromes,proteases, inflammatory response proteins, cellular matrix proteins, metabolicproteins, synthases, esterases, zinc-finger proteins, and riboso...New Competent Cells for Highest Transformation Efficiencies
...ddress both the overall efficiency and the potential size bias, two plasmid vectors were used. Stratagenes pcmv-script vector (4.2 kb) was digested with Xho I and EcoR I; Stratagenes two-hybrid pAD-GAL4 vector (7.2 kb) was also digested with the same two enzymes. A mouse brain...Cis-Reporting System Monitors Intracellular Calcium Mobilization
...the NFAT family oftranscription factors, which are potential targets for newer and saferimmunosuppressive drugs. 1 In addition, the activation of NFATproteins involves various cellular signal transduction pathways, includingcalcium mobilization and MAP kinase pathways linked to T-cell receptors and Ras. 1 To ...Cis-Reporting System Monitors Intracellular Calcium Mobilization
...the NFAT family oftranscription factors, which are potential targets for newer and saferimmunosuppressive drugs. 1 In addition, the activation of NFATproteins involves various cellular signal transduction pathways, includingcalcium mobilization and MAP kinase pathways linked to T-cell receptors and Ras. 1 To ...Higher gDNA Concentrations with the Perfect gDNA Blood Mini Kit by Varying the Final Elution Volume
... increase in concentration, as well as the potential effects on downstream applications. The kit was tested with blood from three different individuals using three different preservatives. Materials Perfect gDNA Blood Mini Kit Required but...Higher gDNA Concentrations with the Perfect gDNA Blood Mini Kit by Varying the Final Elution Volume
... increase in concentration, as well as the potential effects on downstream applications. The kit was tested with blood from three different individuals using three different preservatives. Materials Perfect gDNA Blood Mini Kit Required but...The QIAGEN Guide to Animal Cell Culture
...ous cell lines differ in their proliferative potential (see below). Different cell types vary great...r which they will senesce. The proliferative potential of some human finite cell cultures can be extended by introduction of viral transforming genes...The QIAGEN Guide to Animal Cell Culture
... are considered a biohazard because of their potential to harbor an infectious agent (e.g., a virus). The degree of hazard depends on the cells being used and the experimental protocol. Primary cell cultures in particular should be handled carefully as these cultures have a high risk of...QIAGEN Instrument Service insist on the best in service and support
...siRNA design to maxmize gene-silencing potential A cost-efficient method to study large numbers of genes economically Cost-effective screening of multiple genes The application of RNAi technology to mammalian cells has revolutionized t...High-throughput gene expression analysis to screen for anti-asthma drugs
...ensitive gene expression analysis to identify potential drugs to fight asthma. Bronchial asth...es valuable information about the effects of potential drugs for asthma. The goal of our research is to identify potential new drugs that sele...Critical factors for successful microarray and real-time PCR analyses
... in the RNA template and neutralizes potential inhibitors associated with the RNA template. LabelStar Reverse Transcriptase can easily incorporate any labeled nucleotide during cDNA synthesis, giving high labeling efficiency (Figure 3). Selective binding ...QIAGEN Instrument Service - insist on the best in service and support
...rsonalize your level of coverage to minimize potential downtime and give you maximum value. Our range of Application Service Products includes everything you need to ensure the best performance from your system. From an initial consultation through to application development and ...TransMessenger Transfection Reagent Handbook
...e of media without serum or antibiotics avoids the potential introduction of RNases. It is possible that transfection in the presence of serum may give improved results. Double-stranded siRNA is more resistant to degradation by RNAses than singlestranded RNA and therefore, i......vice on siRNA design for maximizing gene-silencing potential Labeled siRNA allowing transfection to be easily followed siRNA is annealed and ready-to-use in cell transfection Principle The application of RNAi to ma...Enhancing Ruggedness and Full-Scan MS Sensitivity Using Ion Sweep Technology
...lution phase and, therefore, clusters are always a potential problem; Ion Sweep technology can be used to de-cluster the solvent-adducts. Figure 9: Negative ESI base peak chromatogram of imazethapyr (RT 9.6 min, m/z 288) without Ion Sweep gas. a) Solvent-adduct ions...In-Vitro Metabolism Studies Using Data-Dependent LC/MSn
...onding to the [M+H] + for glyburide and its potential metabolites was entered in the method setup for the analysis in order to prevent the instrument from obtaining spectra on irrelevant, but potentially intense, ions in the samples. The LCQ was set up to perform the following ......be assessed quickly and accurately to characterize potential lead compounds. High-throughput analysis of impurities is particularly challenging at the low sample concentrations typical in biological matrices. The wide range of possible modifications further complicates data inter...Advantages of Roche Applied Science amplification products
...oche Applied Science continues to believe that the potential of this technology is not fully exploited yet and is strongly committed to continue serving the scientific community with new innovative systems and reagents without any compromises on its original quality philosophy....PCR Grade Deoxynucleotides Additional power to perfect your PCR experiments
...is guaranteed allowing you to exploit the complete potential ofthe amplification technology. Improve yield and performance Purified to the highest possible purity (> 99% dNTP, < 0.9% dNDP), PCR-Grade Deoxynucleotides offera secure starting point for a succe...Microarray Target Purification Kit and the Microarray Target Synthesis Kit (T7)
...hat is universallyapplicable to the whole range of potential samples. Product Description cDNA Synthesis System The well-established cDNA Synthesis System provides aconvenient one-tube procedure for the synthesis of dscDNA, starting even with small ...Screening of Beer-Spoilage Bacteria Using the LightCycler PCR Workflow System
...indicate that theMagNA Pure LC efficiently removed potential PCRinhibitors originating either from the beer routine sampleor from the enrichment culture (data not shown). Thisclearly demonstrates the suitability and the reliability ofthe PCR Workflow System for analyzing beer routinesamples. ...LightCycler foodproof Beer Screening Kit
...d many different methods to check forand to reduce potential contamination. Most microbiological laboratories use conventional culturemethods to detect the contamination. Beer samples are filtrated, and the filtrate is then transferred intoa liquid and/or solid enrichment medium and finallyin......ompleted, microarray technology offers the potential to study the genomes complexity. This technology f...d in an independent experiment (Figure 3E).Besides potential distortion of the relative abundance ofindividual mRNA by the method used, differencesbetween amplif...Quantitation of the Protein MIA as a Marker for Chondrocytes in Research Samples
...lts and Application MIA as a potential marker for chondrocytedifferentiation and chondroc...cytes. As a result, MIA was also investigated as a potential marker for cartilage tissue engineeringand cartilage damage. In cell culture of ch...Using the Agilent 2100 bioanalyzer for quality control of protein samples prior to MS-analysis
... with anionization voltage of 5000 V andan orifice potential of 40 V. Theanalysis was carried out with afull scan between 600 and 1800m/z (2.7 s/scan). For deconvolutionthe Biotoolbox softwarewas used. Agilent 2100 bioanalyzer and theProtein 200 Plus assay Samples and chips we......orcells in blood of carcinoma patientsindicating a potential tumorrelapse, in some cases severalmonths prior to...withdifferent cell lines were performedto test the potential sensitivity ofthe assay. After inoculation andimmunomagnetic enrichment,two carcinoma cells were det...Rapid detection of genomic duplications and deletions using the Agilent 2100 bioanalyzer
...MAPH and MLPA. Thespeed, ease of data analysis and potential for automation make this anattractive alternative for conventional methods in a diagnostic setting. Alterations in genomic DNA canbe broadly divided into 3 mainclasses: (i) qualitative changes,where the DNA sequence isaltered, (ii) changes of ......d the 3' adjacent 19 nucleotides as potential siRNA target sites. ...oid G residues in the overhang because of the potential for the siRNA to be cleaved by RNase at single-stranded G residues. 2. S...Rapid hit confirmation and early hERG liability testing using the IonWorks HT system
...represent a largely untapped portion of the potential drug target market. 1 Until recently, volt...e but offers direct control of the membrane potential and a direct measurement of ionic current. Thus, a population of channels can be drive......ansfluor assay allow you to enhance your screening potential and rapidly discover GPCR modulators. Practice of Transfluor assays requires a license available only through Molecular Devices. Contact your local sales representative for details on licensing and available Transfluo......nents from the production process prevents potential transmission of pathogens. Materials derived from bovine sources are of special concern, due to known transmission of bovine spongiform encephalopathy (BSE) to humans via ingestion of cow products. Regulatory agencies are incr...Cancer-Related miRNAs Uncovered by the mirVana miRNA Microarray Platform
... tools are used to identify and characterize potential effectors of cancer progression. ...microarray analysis. We selected potential target sites based on two criteria: (1) Perfect complementarity...Designing a Successful qRT-PCR Experiment
... Master Mix Preparation: A potential source of DNA contamination often arises from prior PCR runs. It is highly recommended that the pre-PCR setup occur at a separate location from post-PCR sample analysis, and that separate ...GENE SILENCING WITH PCR PRODUCTS
...epare, SECs provide an ideal way to screen potential siRNA sequences for the best siRNA sequence-promoter combination for DNA-based RNAi experiments in diverse cell lines. For additional information and data, <A href="http://www.ambion.com/catalog/CatNum.php?1680"&......on. High throughput screening of potential siRNAs and subsequent analysis for ...ntages of this method include the limited scale up potential (although each reaction produces enough siRNA for hundreds of transfections) and the......r advantage of this assay is the potential to simultaneously detect several small RNAs of the same size or both small RNA and longer RNA species (e.g. siRNA and target messenger RNA) from a single sample. Ambion makes th...Designing Controls for siRNA Experiments
... The use of RNAi has enormous potential for analyzing gene function, elucidating b...l pathways, and identifying and validating potential drug targets. The RNAi field is still in its infancy, and recommendations on experimental de...IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER!
...on of low siRNA concentrations reduces the potential for off target effects or induction of the antiviral response. Figure 2 shows data from six Silencer Validated siRNAs tested at five different concentrations. In all cases, silencing efficiency at 10 nM was comparable to tha...Determinants of RNA Integrity and Purity
...al contaminants on RNA integrity and their potential to inhibit downstream enzymatic applications. Ther... total RNA sample and decreases the potential for interference during cDNA synthesis. The rRNA Ratio Should...Drive Long-Term Silencing with CMV Vectors
...y express both. To overcome this potential problem, we have constructed three <A href="http://www.ambion.com/catalog/CatNum.php?5775">p Silencer 4.1-CMV siRNA Expression Vectors that express a hairpin siRNA as w...Matched siRNAs and Assays: Ambion + Applied Biosystems = RNAi Success
..., analyze biological pathways, or validate potential drug targets. But before that goal can be realized, the siRNA has to be designed, synthesized, delivered to cells using an optimized protocol, and proven effective. Finally, it is necessary to correlate any induced phenotypic ...... research applications, it has great potential for use in sensitive bioprocessing applications. back to top Ordering Information Cat# Product Name ...... such as pancreas or spleen. To test for potential loss of RNA integrity during sample homogenization, total RNA was isolated from four different mouse tissues with the mir Vana PARIS Kit or the mir Vana miRNA Isolation Kit. With the ...Other ContentsmitochondriamitochondriamitochondriamitochondriamitochondriamitochondrialmitochondrialmitochondrialmitochondrialmitochondrialmitochondrialmitochondrialmitochondrialmodificationmodificationmodificationmodificationmodificationmodificationmodificationteethteethteethteethteethteethteethmolarmolarmolarmolarmolarOther TagsDimensionDimensionDimension
(Date:5/15/2008)...uantity of nitrogen compounds emitted into the atm...els and the use of nitrogen fertilizers enters the... dioxide from the atmosphere, concluded a team of ...ty Distinguished Professor of Oceanography and Atm...experts from institutions around the world present...
(Date:5/15/2008)...ers Karen Staehling-Hampton, Ph.D., Managing Direc...D., Investigator, collaborated with colleagues fro...se spinal mutations in chick and mouse model syste...ith congenital vertebral abnormalities. , The d...e American Journal of Human Genetics. , Working...
(Date:5/15/2008)...ea may be able to stave off the cognitive deficits...cording to a new study published in the second iss...can Journal of Respiratory and Critical Care Medic...a polyphenols (GTP), administered through drinking...f oxygen during 12-hour night cycles, mimicking th...
(Date:5/14/2008)...hers have developed what they believe is the first... common target used to treat all HIV patients, whi...ugs. , Researchers at the University of Michigan...mpound, and then confirmed in the lab that the com...n established target for AIDS treatment. The prote...
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(Date:5/16/2008)...people who didn,t have cancer as children, study f... -- Adults who had cancer as children or teens are... a new study found. , And the heart problems s...d not suffer cancer as children. , Childhood ca...mes increased risk of having heart disease compare...
(Date:5/16/2008)...t The University of Texas M. D. Anderson Cancer Ce... leukemia cells by shutting down their energy sour...ical study, Lauren Akers, D.O., postdoctoral fello...erson, found that combining a novel glycolysis inh...duced more than 90 percent cell death in human tis...
(Date:5/16/2008)...hs School of Nursing and Midwifery, has won the In...an Nursing Awards. , Professor Rickard won top ... during testing procedures, reducing the risk of a...lready ill patients. The award was announced last ...inment complex. , Nurses routinely take blood s...
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