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A New C-Terminal GST Vector for Protein Production in S. pombe

Stratagene Stratagene has constructed and tested the new pESP-3 vector, which can beused for C-terminal fusion with glutathione-S-transferase (GST) and for protein production in Schizosaccharomyces pombe....

New Mammalian Two-Hybrid System Detects Protein-Protein Interactions

Stratagene hybrid genes are used to detect protein-protein interactions via the activationof reporter gene expression. This expression occurs as a resul...

Antibodies for Studying NMDA Receptor Protein Expression and Synapse-Specific Immunolabeling

Danny Q. Hoang Michael Browning Xinping Yang PeterPingerelli Stratagene Cloning Systems, Inc. Stratagene introduces affinity purified antibodies for NMDA receptorsubunits that are useful for studying expression of the NR2A, NR2B and NR2Csubunit proteins...

Simple, Sensitive, and Rapid Detection of FLAG -Tagged Fusion Proteins

-TaggedFusion Proteins Qiyi Xie Quinn Lu Tanya Hosfield Peter Pingerelli Weiping Yang Stratagene...

New Yeast Cloning System for Producing Proteins with Native Amino Acid Sequences

Stratagene Cloning Systems, Inc. The ESP LIC cloning and expression system features rapid and high-yieldproduction of recombinant proteins in yeast. This system usesligation-independent cloning (LIC) for efficient and dire...

Optimized Imaging of Protein Gels Stained with Coomassie Brilliant Blue Dye

Brilliant Blue Dye Stratagene Cloning Systems, Inc. Stratagene currently provides an optical bandpass filter with all EagleEye II still video systems that is...

High-Level Protein Expression, One-Column Purification, and FLAG Epitope Tagging in E. coli

Epitope Tagging in E. coli Katherine Felts Denise Wyborski John Bauer PeterVaillancourt Stratagene LIC cloning kit...

Transfection of Green Fluorescent Protein into Human Adrenalcarcinoma Cells

Department of Cell Biology, Neurobiology, and Anatomy University of Cincinnati College of Medicine, Cincinnati, OH 45267 Transfection of mammalian cell lines is enhanced by the use ofliposome-based reagents. Here we compare the transfection e...

Yeast Protein Production System Features High Yields and One-Step Purification

The ESP system provides high-yield protein production in a eukaryoticorganism Quinn Lu * Bruce Jerpseth * Tim Sanchez * John C. Bauer * AlanGreener Stratagene Cloning Systems, Inc. provides novel opportunities for rapid, inexpensive and high-yield p...

Efficient Cleavage of Fusion Proteins to Yield Native Amino Termini

Recombinant Enterokinase for highly specific digestion of purifiedproteins or proteins in crude extracts Ed Marsh * Johanna Claycomb * ChaoFeng Zheng * Denise Wyborski* John C. Bauer * Joseph A. Sorge * A.K. Bernardino * Peter Vaillancourt Stratagene Cloning Systems, Inc. Stratagene introduces recombinant Enterokinase, an efficient, sitesp...

Expression and Purification of Recombinant Proteins That Have Native Amino Acid Sequence

Denise L. Wyborski * John C. Bauer * Barbara McGowan * JosephA. Sorge * Peter Vaillancourt Stratagene Cloning Systems, Inc. Stratagene has improved the Affinity protein expression andpurification system by the addition of the pCAL-n-EK vector. This E. coliclonin...

pFB-ERV: Retroviral Delivery of the Ecdysone Receptor Proteins

Faster, easier screening for difficult transfections when using thecomplete control kit Stratagene We describe the vector pFB-ERV, an MMLV-based replication-defectiveretroviral vector for delivery of the ecdysone receptor proteins RXR and VgEcR.In stable cell lines infected with an estima...

Codon Bias-Adjusted BL21 Derivatives for Protein Expression

Stratagene BL21-Gold cells * called the BL21-CodonPlus -RILseries** of strains, which contain extra copies of the E. coli argU,ileY, and leuW tRNA genes. This mo...

TKB1 Cells Identify Receptor Tyrosine Kinase Interacting Proteins

Institute for Molecular Biology and Biotechnology, McMaster University,Ontario, Canada GST-fusion proteins expressed in TKB1 bacteria are used to affinity purifycellular proteins, which interact with a specific autophosphorylation site onthe Erb...

High-efficiency Derivatives of the BL21 Series for Protein Expression

Melody Jerpseth Bruce Jerpseth Lisa Breister AlanGreener Stratagene Stratagene has created variants of BL21 competent cells, the new BL21-Goldseries. Epicurian Coli competent cells lack the EndA1 nuclease...

Ni-NTA Superflow Columns - automated large-scale purification of 6xHis-tagged proteins

Ni-NTA Superflow Columns enable up to 24 automated large-scale 6xHis-tagged protein preparations to be performed in parallel on the BioRobot 3000 workstation. Using cleared lysates from bacterial cultures as starting material, up to 15 mg protein per column can be purified under native or denaturing conditi...

Characterization of Protein Oligosaccharides Using MSn

Andrew S.Weiskopf and Paul Vouros, Northeastern University, Boston, MA David J. Harvey, University of Oxford, Oxford, UK The data presented here can be acquired using the Thermo Finnigan LCQ Series of ion trap mass spectrometers. Introduct...

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

Michaela Scigelova, Gary Woffendin; Thermo Finnigan, Hemel Hempstead, UK. Malcolm Ward, Helen Byers; Proteome Sciences, London, UK. Diane Hanger; Institute of Psychiatry KCL, London, UK. The data presented here c...

Rapid Method Development With the BioLogic DuoFlow Chromatography System for the Purification of His-Tagged Proteins

Fang-Fang Wu, Xuemei He, and David R Nau, Bio-Rad Laboratories, Inc., Hercules, CA 94547 USA Immobilized metal affinity chromatography (IMAC) is a powerful technique that can be used for the efficient purification of recombinant histidine-tagged (His-tagged) proteins from a variety of ex...

A Rapid Method for the Purification of Analytical Grade Proteins From Plants Using Preparative SDS-PAGE and Preparative IEF

Contributed by James V. Anderson and Charles L. Guy, The University of Florida, Institute of Food and Agricultural Sciences BiPs (Immunoglobulin Heavy Chain Binding Proteins, also known as GRP78; Glucose Regulated Proteins) are ER-luminal proteins and members of the HSP70 family. 1</...

Continuous-Elution Electrophoresis for Purification of the Baculovirus-Expressed Coronavirus Structural Proteins, Rev A

K. Sestak, L. Kim, K.-O. Chang and L. J. Saif, Food Animal Health Research Program, Ohio Agricultural Research and Development Program, The Ohio State University, Wooster, OH 44691 Three major structural proteins of the porcine coronavirus, transmissible gastroenteritis virus (TGEV), membrane (M), nu...

measurement of green fluorescent proteins and a red fluorescent protein in live cells in the Analyst GT multimode reader

Evelyn McGown, Ph.D., Jinfang Liao, M.D., Ph.D., Mary Kassinos, Irina Osetinsky and Jayne Hesley, Molecular Devices Corporation, 1311 Orleans Dr., Sunnyvale, CA 94089. Fluorescent proteins have become enormously popular as tools for monitoring biological events in vivo. They can be cloned in a diverse range of cells and org...

Measurement of Green Fluorescent Protein in the SpectraMax Gemini XS Spectrofluorometer (MaxLine Application Note #44)

1 GFP (Green Fluorescent Protein) is an extremely stable protein of 238 amino acids produced by the jellyfish that fluoresces in the lower green region of the visible spectrum....

Using the NanoOrange protein kit in the Gemini XS, Gemini EM and SpectraMax M2 microplate readers (MaxLine Application Note #22)

By Yan Zhang, Molecular Devices Corporation, 1311 Orleans Dr., Sunnyvale, CA 94089. This application note describes how to use the NanoOrange Pro software from Mo...

PathCheck Applied to Measurement of Protein Solutions in the SpectraMax Plus Microplate Spectrophotometer (MaxLine Application Note #26)

Protein concentration is commonly estimated by measuring the absorbance at 280 nm and calculating the concentration using the extinction coefficient of the protein. The procedure is feasible because extinction coefficients are typically obtained using standard cuvettes with a fixed 1 cm pathlength. Extinction-based protein assays can also...

Ca++-Induced G Protein Coupled Receptor (GPCR) Activation Monitored via Aequorin Luminescence in the LMax Microplate Luminometer (MaxLine Application Note #42)

Jinfang Liao, M.D., Ph.D. and Evelyn McGown, Ph.D. Molecular Devices Corporation, 8/00 The photoprotein aequorin, a bioluminescent protein from the coelentratejellyfish Aequorea victorea, has proven to be highly sensitive to the trace amount of Ca in cells. The aequorin complex which contains the...

Proteinase K, Recombinant, PCR Grade: the Ideal Tool for Template Preparations

The endopeptidase originally isolated from the filtrate ofthe lower fungus Tritirachium album limber is recombinantlyexpressed in Pichia pastoris. Proteinase K isextremely effective on native proteins from differentsources, and remains active in the presence of denaturingreag...

Quantitation of the Protein MIA as a Marker for Chondrocytes in Research Samples

MIA (Melanoma Inhibitory Activity) was cloned as asecreted protein from human melanoma cell lines [1]. MIAis expressed in and secreted from malignant melanomasand chondrocytes [2, 3]. As MIA expression in chondrocytesis dependent on the differentiation status of the cel...

Monitoring transfection efficiency by green fluorescent protein (GFP) detection with the Agilent 2100 bioanalyzer

This Application Note describes how the Agilent 2100 bioanalyzer andthe Cell Fluorescence LabChip kit can be used to determine the efficiencyof transfection of mammalian cells using green fluorescent protein(GFP) as a reporter molecule. Transfection of CHO-K1 cells with...

Detection of antibody-stained cell surface and intracellular protein targets with the Agilent 2100 bioanalyzer

This Application Note describes how the Agilent 2100 bioanalyzer andthe Cell Fluorescence LabChip kit can be used to detect cell surfaceand intracellular protein targets by antibody staining. CD3 staining onJurkat cells as well as CD4 staining on CCRF-CEM cells and intrace...

2100 expert software Powerful software for the analysis of RNA, DNA, proteins, and cells with the Agilent 2100 bioanalyzer

Powerful software for the analysis of RNA, DNA, proteins, and cells with the Agilent 2100 bioanalyzer The Agilent 2100 bioanalyzer is aunique, on-chip, electrophoresis andflow cytometry analysis tool for RNA,DNA proteins and cells....

Comparison of different protein quantitation methods

This application note compares the accuracy and reproducibility ofabsolute protein quantitation of the Agilent 2100 bioanalyzer in combinationwith the Protein 200 Plus assay to the batch-based methodsLowry and Bradford as well as to denaturing gel-elctrophoresis (SDSPAGE)....

Quality control of antibodies using the 2100 bioanalyzer and the Protein 200 Plus assay

Antibodies are commonly used in diagnostics, as research tools(for example protein arrays) or as biopharmaceutical therapeutics. Inall cases the successful production of antibodies requires precise testingand quality control. The key quality criteria include: protein ident...

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 small molecules, the development of soft ionization methodssuch as matrix-assisted laser desorption/ionization (MALDI) and electrosprayionization (ESI) revolutionized the analysis of large biomolecule...

Double-Affinity Purification of GST-His Tagged Proteins Using Vivapure 8-to-96 Well Cobalt-Chelate Kit

Lucia Martinez and Ario de Marco EMBL Protein Expression Core Facility, Meyerhofstr. 1, D-69117, Heidelberg, Germany Immobilized Metal ion Affinity Chromatography (IMAC) is an easy and reliable technique that allows the fast separation of His-tagged proteins from total lysates. There are several commercially available resins but all of them s...

A Better Way to Isolate RNA AND Protein From the Same Sample

Isolate nuclear and cytoplasmic RNA and protein from cultured cells Ambion's new PARIS Kit uses a fast, simple procedure based on Ambion's RNAqueous technology to isolate bo...

Efficient Cellular Fractionation for RNA and Protein Isolation

Efficient Cellular Fractionation for RNA Ambion's Protein and RNA Isolation System, PARIS, uses a rapid and simple procedure to isolate both total RNA and native protein from the same experimental sample. Cultured cells and tis...

Increase Protein Activity and Yield

Higher yields of protein than reticulocyte lysate systems lysate systems Easy to...

Isolate It All: siRNA miRNA Total RNA Native Protein

, Ambion, Inc Isolate total RNA and native protein from the same sample Enrich for small RNAs ( Ideal for assessing siRNA or miRNA expression and processing Small interfering R...

Isolate Total RNA and Protein From the Same Sample

Vana PARIS Kit combines the technological advances from both the <A href="http://www.ambion.com/catalog/CatNum.php?1560">mir <A href="http://www.a...
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