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Low Abundance cDNA Cloned Using Stratagenes Human Universal cDNA Library

...lying biological systems. Highly sensitive mass spectrometric techniques provide valuable peptide ...ic digestion and microsequence analysis by mass spectrometry. We obtained partial sequences from 23 peptides that were deriv...

Effects of Thermal Cycler Well-To-Well Temperature Uniformity on PCR Results

...use of the Peltiermodules requires that the blocks mass be limited. Maintaining a consistent temperature across a thermal block is easier whenthe exposed surface area is kept to a minimum, thereby limiting heat loss due toconvection. Each hot block of the RoboCycler temperature cycler maintains itsprogra...

A New Lambda Vector for Mammalian Expression

...s efficient library construction and, upon mass excision, high-level eukaryotic expression... quality (background level and insert size), we mass excised and selected phagemid colonies by antibiotic selection on kanamycin plates. Plasmid ...

Detect Released Oligosaccharides Using the Eagle Eye II Still Video Imaging System

...small recovery amounts, impurity, and lowmolecular mass of released glycans. In a recent advance, gel electrophoresis hasbeen used to separate fluorophore-labeled oligosaccharides (FACE) released fromglycoproteins using endoglycosidases. 2 Following electrophoresis, CCD cameras are widely used for all t...

Mx4000 Multiplex Quantitative PCR System*,PPP

...n a96-well plate format. The extremely low thermal mass of the sample thermalcontrol block promotes rapid changes in temperature, so your experiments arecompleted in less time. A typical 96-sample quantitative PCR thermal profile of40 cycles can be completed in less than 90 minutes. Better Communication ...

Transgenic Animals

... Injected cells become incorporated in inner cell mass of host blastocyst Introduce several such blastocysts into pseudopregnant mouse Birth Transgenic mouse ...

Principles and applications of electrical cell fusion

...ulture almost infinitely. This has enabled mass production of specific antibodies. For these achievements, G. Khler, C. Milstein, and N. K. Jerne were awarded the Nobel Prize for Medicine in 1984. Cloning mammals ...

Principles and applications of electrical cell fusion

...ulture almost infinitely. This has enabled mass production of specific antibodies. For these achievements, G. Khler, C. Milstein, and N. K. Jerne were awarded the Nobel Prize for Medicine in 1984. Cloning mammals ...

TransMessenger Transfection Reagent Handbook

... of RNA with Enhancer R is determined by the mass quantity of RNA. Ratio of TransMessenger Transfection Reagent to RNAEnhancer R mixture The overall charge of the TransMessengerRNA complex is determined by the ratio of TransMessenger Transfection Reagent to RNAEnha...

Transfection Reagent Selector Kit Handbook

...ion of DNA with Enhancer is only determined by the mass quantity of DNA. (Cell line or plasmid size do not influence the DNA-to-Enhancer ratio). Ratio of Transfection Reagent to DNA The ratio of Transfection Reagent (l) to DNA (g) is an important factor to o...

Quantitation of Cabergoline at Extremely Low Plasma Concentrations with a Triple Quadrupole Mass Spectrometer

...as acquired on a Thermo Finnigan TSQ Quantum mass spectrometer Overview Quantitation...nsitivity and selectivity of the TSQ Quantum mass spectrometer. Samples with analyte concentrations ranging five orders of magnitude are analyze...

Identification of Low-Level Oxidation Products in Calmodulin Using NanoSpray Ion Trap Mass Spectrometry

...ired using any Thermo Finnigan LCQTMion trap mass spectrometer with MS n capability. ..., CNBr) or proteolytic digestion followed by mass spectrometry. Goal In this report, we describe the direct analysis of ...

Improved Quantitative Selectivity of Clenbuterol in Human Urine using High Resolution on the TSQ Quantum Mass Spectrometer

...as acquired on a Thermo Finnigan TSQ Quantum mass spectrometer Introduction ...n on the TSQ Quantum to exploit the negative mass defect of a compound containing Chlorine, such as Clenbuterol, and hence improve the selectivi...

Structural Analysis of Glycosylated Peptides in Complex Mixtures with Ion Trap MSn

...ired using any Thermo Finnigan LCQTMion trap mass spectrometer with MS n capability. ...ed induction of disease. A variety of mass spectrometry-based approaches have been applied to the fundamental study of glycoproteins. Typ...

Structural Determination of Flavonoids Using MSn

...g the Thermo Finnigan LCQ Series of ion trap mass spectrometers. Introduction ...roduct ions. The LCQ Series of mass spectrometers can perform MSn, so precursor ions are isolated before a subsequent MS/MS experi...

Quantification of the Purinergic Receptor P2X3 using ICAT and Orthogonal 2D LC-MS/MS with an Ion Trap Mass Spectrometer

...l chromatography (2D-LC) coupled with tandem mass spectrometry (MS n ) represents a powerful t...ater (A) or acetonitrile (B). Data Dependent mass spectral acquisition (MS/MS) was used for the most intense ion in the range of 300-1800 m/z (f...

Enhancing Ruggedness and Full-Scan MS Sensitivity Using Ion Sweep Technology

...tage, LCQ Deca XP, and Deca XP Plus ion trap mass spectrometer. Introduction ... solvent ion noise, especially in the m/z 100-250 mass range, will enable Data-Dependent acquisitions for small molecules to be performed more effici...

In-Vitro Metabolism Studies Using Data-Dependent LC/MSn

...g the Thermo Finnigan LCQ Series of ion trap mass spectrometers. Introduction ...a-Dependent experiments. This means that the mass spectrometer makes real-time decisions about which MS experiment to perform based on the spect...

Analyzing Trace-Level Impurities of a Pharmaceutical Intermediate Using an LCQ Deca Ion Trap Mass Spectrometer and the Mass Frontier Software Package

...g the Thermo Finnigan LCQ Series of ion trap mass spectrometers Introduction ...lities, the Thermo Finnigan LCQ Series of ion trap mass spectrometers are well suited for applications involving impurities. Rapid acqui...

Characterization of Protein Oligosaccharides Using MSn

...g the Thermo Finnigan LCQ Series of ion trap mass spectrometers. Introduction This applica...nalytical problem. Electrospray ionization tandem mass spectrometry(ESI-MS/MS) has become a valuable technique inoligosaccharide characterization. 1 Perme...

Bioanalytical Method Intraday Validation for the Quantitation of Paroxetine in Bovine Plasma using the TSQ Quantum Mass Spectrometer

...acquired using a Thermo Finnigan TSQ Quantum mass spectrometer Introduction Guidelines on Bioanalytical Method Validation acceptance criteria were established by the US Food and Drug Administration (FDA) from a conference on Analytical Methods Validati...

Detection and Identification of Phosphorylation Sites in Proteins Using LC/MS/MS with Neutral Fragment Loss Mapping

...sing any Thermo Finnigan LCQ Series ion trap mass spectrometer. Introduction ...gels using electrospray in combination with tandem mass spectrometry has been developed. This allows the exclusive use of automated mass spectrometry ...

Using the Agilent 2100 bioanalyzer for quality control of protein samples prior to MS-analysis

Whereas in the past mass spectrometers (MS) were confined to therealm of sm...) set to214 nm, in row with Single quadrupole mass spectrometer(API165 from AppliedBiosystems) with a 1:10 flowsplitter The analysis was perfo...

High resolution DNA analysis with the DNA 500 and DNA 1000 LabChip kits

...dsof an unknown sample to a knownstandard (size or mass ladder), thesize and quantitation of each fragment...on of the separatedbands based on peak areas.A DNA mass ladder was used toverify quantitation accuracy. Theladder contains 3 fragments in thespecified size ...

Silencer Validated siRNAs

... HPLC, and verified for identity by MALDI-TOF mass spectometry. After annealing, the siRNAs are analyzed by nondenaturing gel or capillary electrophoresis to confirm that the strands are properly annealed. The result is the highest quality siRNA with a sequence verified to red...

Bacterial RNA Isolation From Infected Eukaryotic Hosts

...ith Any Total RNA Sample Although the mass of eukaryotic RNA isolated from host-b...mixtures is often far greater than the mass of bacterial RNA isolated, this complex mixture of total RNAs is the starting material f...

Bacterial RNA Isolation From Infected Eukaryotic Hosts

...ith Any Total RNA Sample Although the mass of eukaryotic RNA isolated from host-b...mixtures is often far greater than the mass of bacterial RNA isolated, this complex mixture of total RNAs is the starting material f...

Cenix-Designed siRNAs for 95% of Human and Mouse Genomes

... laser desorption ionization time-of-flight) mass spectrometry is used to analyze the molecular weight of each oligonucleotide (Figure 1). Finally, each annealed siRNA is analyzed by gel or capillary electrophoresis to ensure that the strands annealed properly. ...

Five Ways to Produce siRNAs

...ptionionization time-of-flight) mass spectrometry and annealed siRNAs are analyzed by nondenaturing gel or capillary electrophoresis to confirm that the strands are annealed properly. <A href="http://www.ambio...

IMPROVE SILENCING SUCCESS: siRNAs THAT WORK BETTER!

...tion ionization time-of-flight) mass spectrometry is used to analyze the molecular weight of each RNA oligonucleotide. In addition, all HPLC and PAGE purified oligonucleotides are analyzed for purity by capillary electrophoresis (CE)...

Perform Microarray Analysis with Limited Bacterial RNA

...commends that the researcher use similar input RNA mass amounts, RNA type (total RNA or mRNA), and IVT incubation times when performing comparisons between samples. Also, as with other RNA amplification methods, only amplified samples ...

DNA Removal for Bioprocessing Applications

... striking when the comparison is based on the mass amount of enzyme added to the reaction. Quantitation of the total protein concentration for each DNase reveals that 1 unit of the competitors wild type DNase I contains 9.5 times more ...

MessageAmp II: Use Less RNA for Array Analysis

...s involving small samples or low mass amounts of sample RNA demand a high level of amplification (10 6 -fold or greater). In situations like this, it is often beneficial to use the lowest level of total RNA input that generates enough...

Get the miRNA OutPlant Applications

... analysis often requires extremely large mass amounts of input RNA. Furthermore, techniques for analysis of small RNAs are not compatible with those appropriate for mRNA analysis. For example, small RNAs cannot be analyzed by RT-PCR or standa...

Highly Sensitive microRNA Array Performance

...es that represent approximately 0.01% of the total mass of RNA in a sample (10 g total RNA contains ~1 ng miRNA). Due to their small size and low abundance, miRNAs can be extremely difficult to detect using standard array procedures. To ...

Recover High Yields of Total Nucleic Acid from Formalin-fixed, Paraffin-embedded (FFPE) Tissue

...n mouse brain samples. The Ct values from an equal mass of the FFPE samples were higher than those from the frozen controls, indicating that other modifications from the fixation process have adversely affected the RNA as a reverse transcription template. Figure 1. ...

RNAi in Non-Mammalian Cultured Cells

...iption of Long dsRNA for RNAi Large mass amounts of ready-to-use dsRNA for RNAi experiments in non-mammalian systems can now be easily prepared using the MEGAscript RNAi Kit. The kit is based on Ambion's patented high-yield transcription technology ...

Synthesize High Yields of Biotinylated aRNA

...ions were carried out for 4 hr. Equivalent mass amounts from each reaction were analyzed on an Agilent bioanalyzer. The shift in aRNA size from the MessageAmp II-Biotin Enhanced sample results from the incorporation of biotin into the aRNA. Figure 3. ...

TURBO DNase: Hyperactive, Salt Tolerant DNase

... high specific activity enzyme. Thus, the same mass amount of TURBO DNase can perform significantly better than wt DNase I from other vendors (Figure 2). TURBO DNase is produced in an organism with little to no RNase contamination, further reducing the chance of RNA degradation...

Unmask Blood RNA for Gene Expression Profiling

.... In fact, up to 70% of the mRNA mass is from globin transcripts. Globin Transcript Removal Ambion's <A href="http://www.ambion.com/catalog/CatNum.php?1980">GLOBINclear-Human Kit is designed to rapidly depl...

Your Data: Silencing Hepatitis C Virus Replication With In Vitro Transcribed siRNAs

...3- and NS5B-specific antibodies. Molecular mass markers (in kilodaltons) are shown to the right of each gel. Shown are representative data of three independent experiments. Figure 2. Effect of HCV-specific siRNAs on HCV and GAPDH RNA Transcript Levels. ...

Isopure - Buccal cell DNA isolation

...settling rates, and a high-surface area to mass ratio of the Sera-Mag microparticles make SPRI cost effective, highly efficient and automation-friendly. RECOVERY AND YIELD: The Isopure Buccal Cell method consistently delivers sufficient material to carry out ...

Detection of Platinum Species in Plant Material by Preparative Isotachophoresis Using the Model 491 Prep Cell, Rev A

...t of isotachophoresis. The molecular mass of these platinum-containing fractions were determined by native horizontal flat-bed electrophoresis (PAGE). By using our sensitive determination method it was possible to detect platinum in separated and stained protein bands af...

Detection of Genetically Modified Soybean in Processed Foods Using Real-Time Quantitative PCR with SYBR Green I Dye on the DNA Engine Opticon 2 System

...d Samples Dried soybean powder containing mass fractions of 0% to 5% Roundup Ready soybea...linear range of the curve extended from 5% mass fraction of GMO soy standard down to 0.5% mass fraction of GMO soy standard, with the square...

Proteomics in Bladder Cancer Research: Protein Profiling of Bladder Squamous Cell Carcinomas, Rev C

...smussen 1994, Nika and Aebersold 1994) and mass spectrometry (Wilm et al. 1996, Yates 1996, Pappin...San Diego (1994) Pappin DJ, Peptide mass fingerprinting using MALDI-TOF mass spectrometry, Methods Mol Biol 64, 165173 (1997) ...

Imaging and Analysis of DIGE Product Information Sheet, Rev B

...s and Protein Identification For optimal mass spectrometry results, it is recommended that you u...ots through microtiter plate digestion and mass spectrometry protein identification, and allow automatic annotation of the gel image with th...

Use of the PROTEAN Plus Dodeca Cell for Second-Dimension SDS-PAGE, Rev A

... that could be used for both image analysis and mass spectrometric identification of proteins. Methods Preparation of Isoelectric Focusing Strips Cells from a human cell line were lysed with 7 M urea, 2 M thiourea, 2% CHAPS, 50 mM Tris, pH 7.5, 0.4% d...

Sample Preparation Solutions for Cellular Protein Fractionation Poster, Rev A

... among other functions. 2DE and MALDI peptide mass fingerprinting data will be presented to i...ing the ProteomeWorks spot cutter. Peptide mass fingerprint data was obtained from excised 2-D gel spots using the MassPREP station robotics...

Transient Gene Expression Following Single and Double Exponential Decay Electroporation Pulses

...mount used for one electroporation. DNA in a total mass of 0.33 g as a mixture of equal amounts of two plasmids was placed in a 0.2 cm gap electroporation cuvette, then the cell suspension was added. Exponential decay electroporation pulses were administered as specified in Table 1...

Aurum Plasmid 96 Kit Tech Note, Rev A

...nto account the following criteria: sample purity, mass yield, concentration, extent of handling, ...tions With respect to overall plasmid DNA mass yield, the Aurum plasmid 96 kit was one of the 2 best performers, giving the highest yield o...

Detection, identification, and quantitation of an olive allergen using Ettan MDLC, MS/MS, and DeCyder MS

...an™ MDLC was used in conjunction with tandem mass spectrometry (MS/MS) to separate and identify alle...>The DeCyder MS algorithm is based on accurate mass and reproducible retention times. Ettan MDLC is ideally suited to deliver reproducible retention tim...

2D-LC analysis of phosphopeptides in brain tissue using Ettan MDLC and Finnigan LTQ

...change (SCX) chromatography • linear ion trap mass spectrometer A 2D–LC-MS method ... Ettan™ MDLC. The detection was performed by mass spectrometry using neutral loss of phosphoric acid to selectively detect the phosphorylated peptides...

Sensitive identification of phosphopeptides in brain tissue using Ettan MDLC and Finnigan LTQ

...) using Ettan MDLC. The detection was performed by mass spectrometry using neutral loss of phosphoric acid...cle control. Detection of phosphorylation sites by mass spectrometry in proteins extracted from biological material is hampered by the low abundance, low st...

HPLC/MS/MS Analysis of Bitter Acids in Hops and Beer

...n beer, API 3000 LC/MS/MS System triple quadrupole mass spectrometer was then used to determine the bitter acid contents. API 3000 system mass spectrometer and a high mass accuracy hybrid QqTOF instrument, QSTAR LC/MS/MS System...

Fast Multi-Residue Pesticide Analysis in Soil and Vegetable Samples

... Chromatographic considerations Operating the mass spectrometer in the selective and sens...e in single MS mode (e.g. with a single quadrupole mass spectrometer) due to the many interfering compounds. For soil extracts simil...

Simultaneous Determination of Residues of Approximately 100 Pesticides and Metabolites in Fruit and Vegetables by LC/MS/MS

... with 25 ms dwell time and a pause between mass ranges of 5 ms within the cycle time of 3 ...quently, with 25 ms dwell time and a pause between mass ranges of 5 ms within the cycle time of 3 seconds the simultaneous measurement of 10...

The combination of monolithic columns and modern HPLC/MS/MS instrumentation for high chromatographic throughput and sensitive detection of beta-agonists

...nolithic columns at higher flow rates and a modern mass spectrometer, which is optimized to work with such high flow rates is evaluated. High Pressure Liquid Chromatography : Agilent 1100 series binary pump, column oven, and well-plate autosampler columns: Inertsil ...

Determination of Polar Organophosphorus Pesticides in Aqueous Samples by Direct Injection Using HPLC/MS/MS

...s were ionized using APCI and detected on a tandem mass spectrometer operated in multiple reaction-monitoring mode. The detection limits are in the range of 0.01 0.03 μg/l. The method is applicable for analysis of polar OPs in surface, ground, and drinking water. Compared to conventional GC methods,...

Efficient Primary Structure Elucidation of Disulfide-bridged Peptides

...of Edman sequence analysis and electrospray tandem mass spectrometry provides accurate and detailed struct... the QSTAR Pulsar hybrid quadrupole time-of-flight mass spectrometer. These two techniques provide complementary data for an unambiguous characterization of...

Isolation and Characterization of Anti-Viral Nucleoside Compounds from the Chinese Herb Taraxacum Mongolicum

... the first time using liquid chromatography tandem mass spectrometry (LC/MS/MS). The active ingredients in...andards with product and precursor scans of tandem mass spectrometry. The nucleoside analogs were believed to be major active ingredients which have anti-He...
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(Date:5/16/2008)...ugars attached to a hormone produced in the pituit...y 50 percent, a research group at Washington Unive...he change appears to alter a reproductive "thermos...stem that may one day be used to enhance human fer... reproductive hormones such as estrogen and testos...
(Date:5/16/2008)...show that CAPHOSOL ( www.caphosol.com ), an advanc...ositis (OM) and improves quality of life for cance...herapy. These data will be reported in two separa...entation and one tomorrow as a poster session, at ...ociety (ONS). These data confirm that CAPHOSOL is ...
(Date:5/16/2008)...f Forest Research presents the preliminary finding...ndscape-scale experiments on how forest management...e Blacks Mountain Interdisciplinary Research team ...rsity, Oregon State University, U.C. Riverside, Un...ety scientists collaborating in research on large-...
(Date:5/16/2008)...ree homes for their children have led to an ever-i...cterial soaps and cleaning agents. But the active ...e under scrutiny by the EPA and FDA, due to both e...closely related antimicrobials, triclosan and tric...s triclosan (TCS) has long captured the attention ...
Breaking Biology News(10 mins):Disabling mouse enzyme increases fertility 2CAPHOSOL relieves oral mucositis and improves quality-of-life in cancer patients 2CAPHOSOL relieves oral mucositis and improves quality-of-life in cancer patients 3CAPHOSOL relieves oral mucositis and improves quality-of-life in cancer patients 4Pioneering landscape-scale research releases first findings 2New study links fate of personal care products to environmental pollution and human health concerns 2New study links fate of personal care products to environmental pollution and human health concerns 3Brookings 3A Donor Perspectives on Innovative Financing for Global Health 3748 1Brookings 3A Donor Perspectives on Innovative Financing for Global Health 3748 2Pacific Valley Bank Approves 2416 7 Million Loan to Mee Memorial Hospital for Healthcare Services in South Monterey County 3745 1Pacific Valley Bank Approves 2416 7 Million Loan to Mee Memorial Hospital for Healthcare Services in South Monterey County 3745 2Pacific Valley Bank Approves 2416 7 Million Loan to Mee Memorial Hospital for Healthcare Services in South Monterey County 3745 3Concentra Offers Flu Vaccines to Keep America Working 523 1Concentra Offers Flu Vaccines to Keep America Working 523 2Stevens researchers provide new information about mass spectrometry 1269 1Stevens researchers provide new information about mass spectrometry 1269 2
(Date:5/16/2008)...ire/ -- As tropical storms,continue to batter the ...,Cyclone Nargis are vulnerable to diseases and oth...stance, as exposure to the foul weather and,malnut...., "The people living in these conditions urgentl... get back on their feet," said David Meltzer,seni...
(Date:5/16/2008)...of Children Still in Danger, NEW YORK, May 16 /PR...rtising Council today announced a partnership to d...service announcements (PSAs) filmed by A-List,cele...el Madden, David,Duchovny, Tea Leoni, and Paul Rud...yclone. The Ad Council is distributing the new tel...
(Date:5/16/2008)...ire-FirstCall/ -- Nationwide,Health Properties, In...David,M. Boitano to Senior Vice President and Seni... contribution to NHP over the last several years a...versification strategy,successes. Dave has been re...ents for NHP, leveraging his vast experience and r...
(Date:5/16/2008)...l/ -- CryoCor, Inc. (Nasdaq:,CRYO), a medical devi...hythmias, announced today that on May 8, 2008, two...omplaint in the Superior Court of the State,of Cal... each member of the,Board of Directors of CryoCor,...mplaint is styled Secondido, et al. v. CryoCor, In...
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