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Human Primary Preadipocytes and Differentiated Adipocytes
...atment promotes a cascade of transcription factors activation and adipocyte-specific gene expression that leads to the mature adipocyte phenotype ( Figure 1 , panel A and B). Predifferentiated Adipocyte Differentiation Medium is also available from Stratagene as a separate reagen...New Mammalian Two-Hybrid System Detects Protein-Protein Interactions
...tein of yeast, contain a DNA binding domain and an activation domainthat can be separated. If these domains are ... of the two proteins results in restoration of the activation of thetranscriptional activator. Genetic selection for this interaction is provided byan amino acid ...Assess the In Vivo Activation of Signal Transduction Pathways with PathDetect Reporting Systems
... with specific fusion trans-activators, assess the activation ofspecific kinases and the corresponding signal tr...li. The PathDetect cis-reporting systemsassess the activation of transcriptional factors acting on the cis-elementsand provide preliminary clues on the function o...Versatile Vectors for Ponasterone A- Inducible Control of Gene Expression in Mammalian Cells
...lting hormone, ecdysone,stimulates transcriptional activation in mammalian cells harboring the ecdysonereceptor ...ee lines show high-level inducer-dependent activation in transient expression assays using the pEGSH-luc reporter ( Figure 4 ). ...Luminol-enhanced Assay for Superoxide Anion (O2 face="Symbol" )
... The activated receptor triggers the production or activation of NADPH oxidase, leading to the production of superoxide anion. Superoxide anion is subsequently released into the extracellular environment where it can oxidize luminol and available lipids and proteins. This oxidation results in chemiluminescence,...Optimizing Transfection Conditions for Studying Signal Transduction Pathways
... drug candidates, and extracellular stimuli on the activation of c-JunN-terminal kinase 2,3 (JNK), mitogen-acti...KA), and other signalingmolecules that lead to the activation of these kinases. Stratagene has continuedto update the PathDetect trans-systems to study signal tra...Functional Cloning Using ViraPort Retroviral cDNA Expression Libraries
...mplementation Reporter activation Transcription factors Reporter activation Apoptosis inhibitors Survival: resistance to apoptosis i...Signal Transduction Reporting Systems Using Cis-Acting Enhancer Elements
...ple, rapid and convenient assessment of the invivo activation of these pathways, Stratagene has designed the Pat...ems. Extracellular signals trigger the sequential activation of a series ofintracellular signaling molecules, such as protein kinases and phosphatases. 1,2 The f...Stable HeLa Luciferase Reporter Cell Lines Expressing GAL4 Fusion Transactivators
...ciferase activity in stable cell linesreflects the activation status of the fusion transactivator and, hence, th...e yeast GAL4 (residues 1 to 147) protein 8 andthe activation domain of CREB, Elk1, or c-Jun is used to probe the activity ofPKA, MAPK, and JNK, respectively. 4-7...Greater Amplification Specificity with New Hot Start PCR Enzyme
...ure 1B, Lanes 6-10). Although the PCR heat activation method generally requires more cycles (35 ...except that the recommended PCR buffer and activation method was used. PCR reactions were amplified in a RoboCycler Gradient 96...Enzyme Immunoassay for Studying Intracellular Levels of cAMP
...r neuromodulator to its receptoris followed by the activation of a G protein, which, in turn, activates theeffec... Since changes in cAMP levels can result in the activation of proteins known to play key roles in signal transduction cascades, quantitative me...pFB-ERV: Retroviral Delivery of the Ecdysone Receptor Proteins
...rmone ecdysone, which can stimulatetranscriptional activation in mammalian cells harboring the ecdysone receptor...d binding, at which timehigh-level transcriptional activation occurs (i.e., the heterodimer is convertedfrom a tight repressor to a trans-activator). Using the Co...In Vivo Signal Transduction Pathway Reporting Systems
...fic, rapid and convenient assessment of the invivo activation of signal transduction pathways. These reporting s...ew genes, growth factors and drugcandidates on the activation of c-Jun N-terminal kinase (JNK), mitogen-activatedprotein kinase (MAPK), cyclic AMP-dependent prote...Improved Vectors for PathDetect Trans-Reporting Systems
In vivo readout of signal transduction pathway activation Li Xu Tim Sanchez Mary Buchanan Chao-Feng Zhen...eporting systems can be used to assess the in vivo activation of signaltransduction pathways. To expand the utility of these systems, Stratagene isreplacing the p...RT-PCR Primers for the Study of Apoptosis
...sentially allmammalian cells at all times, but the activation of apoptosis is regulated bymany different signals...s, Bcl-2 (and analogs), and the ICE families. The activation of death receptors, such as the Fas ligand, may induce theapoptosis pathway. The Fas antigen, which ...New Reporter Plasmids for Studying Interferon-Stimulated Signal Transduction Pathways
Monitor activation status of interferon-stimulated signaling pathways... of biological functions, including tissue repair, activation of variousblood cells involved in antibody production, inflammation, and host defenseagainst viruses...New Fusion Trans-Activator Plasmids for Studying Signal Transduction Pathways
...ting systemsare designed for assessing the in vivo activation of signal transductionpathways. The PathDetect tra...designed the newpFA-CMV plasmid for expressing the activation domain of any transcription factorfused to the yeast GAL4 DNA binding domain. The pFA-CMV plasmid fe...Improve Amplification Specificity with Hot Start PCR Enzyme
...at-activation step can be omitted to permit enzyme activation during temperature cycling. When the PCR heat-activation method is employed, it is generally necessary to add additional cycles to existing cycling programs to achieve optimal product yield. SureStart Taq DNA polymerase provides superior or equivale...Cis-Reporting System Monitors Intracellular Calcium Mobilization
...ew PathDetect reporting system for studying NFAT activation Li Xu Matthew Hsu Mary Buchanan Chao-Feng Zhe...Luc reporter plasmid, is designed for studying the activation of thenuclear factor of activated T-cell (NFAT) transcription factors. Theseinteresting proteins, wh...Cis-Reporting System Monitors Intracellular Calcium Mobilization
...PathDetect reporting system for studyingNFAT activation Li Xu Matthew Hsu Mary Buchanan Chao-Feng Zhe...in theactivation of NFAT proteins. Therefore, NFAT activation follows precisely theactivation of calcineurin by increased free calcium levels in the cytoplasm. 5,...HotMasterAn innovative Hot Start/Cold Stop technology for better PCR* results
...ation is pre-optimized and self adjusting; no heat activation step is required, the polymerase is inhibi... Start/Cold Stop technology. In addition, no heat activation is required with HotMaster, and target sizes of up to 5.0 kb can be efficiently and ...... of all primers. PCR must start with an activation step of 15 min at 95C to activate HotSt...imers. PCR must start with an activation step of 15 min at 95C to activate HotStarTaq DNA Polymerase (see step 7 of this protocol)....... HotStarTaq DNA Polymerase requires an activation step of 15 min at 95C (see step 6 of t...s.Each PCR program must start with an initial heat activation step at 95C for 15 min.A typical PCR cycling program is outlined below. For ......ection reagent. Endotoxins also induce nonspecific activation of immune responses in immune cells su... by causing endotoxic-shock syndrome and activation of the complement cascade. ......of Met residues in CaM plays a crucial role in the activation of target enzymes, the exact position and nature of the oxygen addition (+16 m/z) to the Met residues in the tryptic fragments T 12 and T 13 were further investigated by MS 2 and MS 3 experiments. The peaks at reten......) gene. Manufacturers' recommended initial product activation times were used when applicable. Cycling conditions: 35 cycles (95C / 30 seconds - 60C / 30 seconds -72C / 60 seconds) final extension at 72C for 7 minutes. A: FastStart Polymerase; B: Taq DNA Polymerase; C: Supplier A, modifi...A Further Step in Understanding Apoptosis Direct Detection of PARP Cleavage
...initiation elements of the apoptoticpathway is the activation of caspases (cysteinyl-asparticacid proteases) fol...-pathway analysis (in situ) at the stage ofcaspase activation from early to later stages Early apoptosis detection method in tissue sectionscomplementing TUNEL ...Apoptosis detection by annexin V and active caspase-3 with the Agilent 2100 bioanalyzer
...pathway.In the cell surface deathreceptor pathway, activation ofcaspase-8 following its recruitmentto the death-inducing signalingcomplex (DISC) is the criticalevent that transmits the death signal.This event is regulated at severaldifferent levels by variousviral and mammalian proteins.Activated caspase-8 can ...Mutation detection for the K- rasand P16 genes
...tchanges in the region of this genewhich codes for activation isessential. For our purposes, thistest was used to ultimately determinea cancer patients eligibilityinto a clinical trial for a peptidevaccine. The normal form ofcodon 12 codes for glycine.Known mutations observed atcodon 12 are: aspartic acid, vali......ovel high-content assay that monitors GPCR activation by measuring GPCR desensitization and recycling. The Transfluor assay is now exclusively available from Molecular Devices. The Transfluor Assay, validated on over 90 different GPCRs, uses a common pathway independent of...Setting up a kinase profiler with IMAP
.... For the kinase profiling assay, the lipid activation step will be omitted to streamline the protocol. For Ros , the next kinase on our list, the substrate Rostide has already been validated in IMAP, so an SF Tyr assay was not necessary. The TIE2 assay was t......ng expression of several kinases inhibited activation of caspase 3 by etoposide, suggesting that...s on proliferation and caspase 3 activation were generated with the same cell line and substrates at the same time. The result...Assessing Gene Function with siRNA Libraries
... left inset). This likely corresponds to activation of the well-studied spindle assembly checkpoint, which monitors the correct, functional interactions between spindle microtubules and kinetochores in preparation for metaphase and subsequent ...Designing Controls for siRNA Experiments
... ribonuclease RNase L. Another way is to monitor activation of the dsRNA-dependent protein k...c inhibition of translation. PKR activation can therefore be examined by monitoring the phosphorylation of eIF2alpha (7). ...Precursor miRNAs for Successful miRNA Functional Studies
...e rules for miRNA maturation and activation from pri-miRNA and pre-miRNA precursors are not ...t difficult to ensure uptake and activation of the intended miRNA molecule from plasmid-based expression systems. In contrast,...Recommendations for Successful siRNA Library Screens
... different siRNAs found to block caspase 3 activation (a marker for apoptosis) in a phenotypic s...ibiting kinase activity via siRNA inhibits activation of the apoptosis pathway as measured by caspase 3 activity) by both methods. Red arrows indi...Using Validated siRNAs in Functional Genomic Assays
... associated with TNFalpha-induced activation of the NF-kappaB pathway. Upon a... experiment detailed below, TNFalpha-triggered activation of NF-kappaB nuclear translocation was used as a functional HCS ......real-time RT-PCR to determine if activation of a MAP kinase pathway was crucial for suppression of noradrenergic function. Sympathetic neurons were dissociated from the superior cervical ganglia of neonatal rats using dispase and collagenase......real-time RT-PCR to determine if activation of a MAP kinase pathway was crucial for suppression of noradrenergic function. Sympathetic neurons were dissociated from the superior cervical ganglia of neonatal rats using dispase and collagenase...Your Data: Silencing of a Pro-apoptotic Transcription Factor Using Synthetic siRNA
...oreover, nonspecific RNAi effects, such as activation of the PKR pathway, were not observed. In some cases, when growth factors were removed from the culture medium, differentiation of the primary neural stem cells, which normally give rise to neuronal and glial cells, was altere...RNA Interference and Gene Silencing: History and Overview
...nwinding of the siRNA duplex is required for activation of the RISC. The active RISC then targets the ...ctural requirements of double-stranded RNA for the activation of 2'-5'-oligo(A) polymerase and protein kinase of interferon-treated HeLa cells. J...Efficient Cloning and Electro-transformation of Large Eukaryotic DNA Fragments
... J. M., Jat, P. S., and Sharp, P. A., Gene activation by induced DNA rearrangements, Cancer Res., 49 , 66406644 (1989). 9. Wyman, A. R., Wolfe, L. B., and Botstein, D., Propagation of some human DNA sequences in bacteriophage 1 vectors requires mutant Escherichia coli hos...Quantitative Analysis of Protein-DNA Associations in Vivo Using Real-Time PCR, Rev A
... implicated a direct role for Pdx1 in the specific activation of these genes (Ahlgren et al. 1998). Howe...interactions in the formation of a transcriptional activation complex on the insulin promoter, Mol Cell Biol 20, 900911 (2000) Waeber G et al., Tra...Transformation of Filamentous Fungi by High-Voltage Electroporation
... possible explanation for this effect could be the activation of the repair system caused by the high-voltage electric pulse. The results presented here show that OSC from T. harzianum can be efficiently transformed by electroporation. Electroporation is rapid, easy to perform, an......, pro-inflammatory cytokines with potent leukocyte activation and/or chemotactic activity in vivo (1). Chemokines are classified into four families (CXC, CC, C, and CXC3) based on the number and sequential relationship of the first two of four conserved cysteine residues. They induce their biological effect b......his enzyme; however, there is a 3-fold increase in activation of the enzyme in the presence of adenosine 5’-monophosphate (AMP). <P >† Other pack sizes available, please inquire for details. <P > back to top...Performance of Ad-A-Gene EGFP-MAPKAP-k2: an adenoviral vector gene delivery system
... Dhawan, P. et al . Critical role of p42/44 MAPK activation in anisomycin and hepatocyte growth factor-induced LDL receptor expression: activation of Raf1/MEK-1/p42/44 MAPK cascade alone is sufficient to induce LDL receptor expression. Clin. Jou......robing the phosphorylation of p38. Quantitation of activation was also determined, where increasing time of TGF-β stimulation results in an increase of pp38. The comparison between the Ettan DIGE Imager and the Typhoon scanner shows that both scanners deliver quantitative data (Fig 3). These results clearl...The use of CypHer5 for receptor internalization studies in both a range of GPCRs and a non-GPCR
...he δ -opioid and EGF receptors upon ligand activation (Fig 1). This can be compared to the minimal fluorescence observed prior to agonist addition. Fluorescence from Cypher5 is localized to acidic endosomes as a result of agonist-induced internalization of the receptor-ligand complex and is observed for...The use of CypHer5E and the IN Cell Analyzer 1000 for live-cell receptor internalization studies
...ceptors (data not shown). In the absence of ligand activation by an agonist, there is very little cell-associate...er5E will provide the capability of monitoring the activation of lower expressing receptors than CypHer5. The data from Figure 3 also demonstrates very similar EC...... <P > Conclusion Agonist activation of cell surface receptors, which are used by the pharmaceutical industry as major drug targets, almost invariably results in the internalization of the receptor from the plasma membrane to the endosomal pathway within the cell. CypHer5 provides a gen...Detection and quantitation of low-abundant proteins with ECL Plex fluorescent Western blotting
...proteins are readily detected in cell lysates, and activation of signal transduction pathways can be measured. <P > References 1. Application note: Multiplex protein detection using the ECL Plex fluorescent Western blotting system, GE Healthcare, 28-4015-40, Edition AA...Mix-and-Read, Bead- and Cell-Based Immunoassays Using the FMAT 8100 HTS System
...xpression of cell-surface adhesion molecules. Upon activation with IL-1 or TNF-, one of the cytokines secreted by EC is IL-8, which promotes the attachment of circulating neutrophils and induces B2-integrin expression. IL-1 and TNF- are also responsible for the upregulation of many cell surface proteins, incl...Quantitative Analysis of the Cell Cycle in Imaging Applications
...of the cell-cycle. Another consequence of cellular activation may be the induction of programmed cell death (apoptosis). Understanding the specific phase of a cell is important when cells display heterogeneous responses to drugs as is often the case in high-content applications. This four color ap...Caspase-3 Activation - An Indicator of Apoptosis in Image-Based Assays
... various tasks depending on subtype and organ. The activation of caspases is also a marker for cellular damage in diseases such as stroke or myocardial infarction (reviewed by Lavrik et al . 2005). Although the precise role in the initiation and progression of apoptosis is not known for all caspases, their inv...DNA Damage and Repair - Quantification of Sub-Cellular Events Using Automated Confocal Imaging
... treatment confirming the rapid time course of the activation and recruitment of this protein to the sites of DN...ocation after 30 minutes confirms reports of rapid activation of the repair signaling cascade (Schultz et al . 2000) Although we did not investigate the s...Research Tools for Analysis of ZAP-70
...sslinking of the CD3 receptor complex leads to the activation of Lck and Fyn which are Src family tyrosine kinases 1,2 . These kinases phosphorylate ITAM regions on the receptor which act as docking sites for ZAP-70. Phosphorylation of ZAP-70 by Lck leads to its activation. ZAP-70 then goes on to phosphorylate ...Cell lines expressing recombinant aequorin and a G-protein coupled receptor for functional screening
...GPCR can thus be used to monitor the efficiency of activation of a GPCR by various compounds known or suspected...oncentration increases. This increase leads to the activation of the catalytic activity of aequorin, which oxidizes coelenterazine and yields apoaequorin, coelent......ate as a platform for the measurement of G-protein activation by means of an assay of [ 35 S]-GTPγS binding...f cellular events takes place which results in the activation of an effector molecule. Many receptors transmit this signal via G-protein activation. This response......of this novel FlashPlate technology to measure the activation of adenylyl cyclase in Chinese Hamster Ovary (CHO) cells expressing human -2 adrenoreceptors (h-2 receptors). Materials Adenylyl Cyclase Activation FlashPlate Assays (96-well format) were supplied by PerkinElmer Life Sciences. Isopren...Other ContentsretrotransposonsretrotransposonreversalreversalreversalreversalrhesusrhesusrhizomerhizoidOther Tags
(Date:5/15/2008)...g through a room full of people. Jumping out of th...hese seemingly simple actions require us to percei...rofessor of Cognitive Science at Rensselaer Polyte...something moreour ability to foresee the future. ,... to translate the light that hits our retina into ...
(Date:5/15/2008)...lebrated brother will each receive honorary doctor... year each brother was named in the Queens Honours... Nottingham Research Professor in Chemistry, Marty...d playwright and director Stephen Poliakoff CBE, a...ble contribution to British science and culture. ...
(Date:5/14/2008)...s with things like trout and salmon would be good ...e water, so it would be natural to assume that mor... published in the April journal of Ecology by the ...on of species such as exotic salmon and trout to t...ting that fishery management actions can sometimes...
(Date:5/14/2008)...n evolution will gather in Minnesota June 20 throu...nual gathering of evolutionary biologists. The con...tists to share research related to evolution, is s...eum of Natural History, the university,s College o...cience Education. , Headlining the event is Oliv...
Breaking Biology News(10 mins):Crystal (eye) ball: Study says visual system equipped with 'future seeing powers' 2Crystal (eye) ball: Study says visual system equipped with 'future seeing powers' 3Boffinry and Baftas: Brothers' double doctorates 2Restoring fish populations leads to tough choice for Great Lakes Gulls 2University of Minnesota to host world's largest conference on evolution 2Pathology Reports Good for Breast Cancer Studies 11343 1American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 1American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 2American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 3American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 4American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 5American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 6American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 7American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 8American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 9American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 10American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 11American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 12American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 13American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 14American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 15American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 16American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 17American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 18American Pacific Reports Revenue Increase of 34 25 and Net Income of 242 9 Million for Fiscal 2008 First Quarter 11341 19CyberKnife Centers of Miami Palm Beach and Tampa Invited to Join M D Anderson Cancer Center Study 11338 1Researchers decode genetics of rare photosynthetic bacteria 2154 1Researchers decode genetics of rare photosynthetic bacteria 2154 2Researchers decode genetics of rare photosynthetic bacteria 2154 3(Date:5/16/2008)... - Gefitinib, the once-promising drug formerly app...also known as Iressa, enhanced the effectiveness o...ypes of metastatic breast cancer, according to a P...niversity of Texas M. D. Anderson Cancer Center. ,... first positive study for Iressa in breast cancer,...
(Date:5/16/2008)...ounces appointment of Nomura Code Securities Limit... broker, NEW YORK, May 16 /PRNewswire-FirstCall/ ...estments, Inc. (Amex: MGT ) (the "Company"), and ...Aided Detection (CAD) and,image analysis software ...,of disease, today announced the appointment of NM...
(Date:5/16/2008)...it Portland to Rally Residents to Eat Right, Move ...ts, PORTLAND, Ore., May 16 /PRNewswire/ -- The la...ifferent fad diets -- which seem to go in and out,...ong-term success has been,slim. Two out of three A...ents -- remain overweight or obese., A new campai...
(Date:5/16/2008)...of two proteins in mammalian embryos prevents the ...earchers at the Medical College of Wisconsin, Milw...the May 15 issue of Developmental Biology, was led...gy, neurobiology and anatomy at the Medical Colleg...ly identified the factors responsible for the onse...
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