e-Lynx - March 2009

Dear Researcher,

We are pleased to present the March e-Lynx, a newsletter devoted to keeping our customers up-to -date on new technologies, our new products, suppliers, activities and promotions.

New Products

Trevigen - CultreCoat® Cell Adhesion Assays

CultreCoat® Cell Adhesion Assays provide a simple, standardized, high throughput format for assessing factors that influence cell-matrix interactions.

  • Black stripwell plate minimizes background, providing greater sensitivity, and affords flexibility for the number of samples assessed.
  • Stripwell feature also allows multiple experiments to be conducted simultaneously using the same kit.
  • Calcein labeling allows direct comparisons between the number of cells that are loaded and the number that adhere, providing a loading control.
  • Controls are provided for determining background and non-specific binding.

The CultreCoat® Cell Adhesion Assays have been adapted to multiple formats so that cell adhesion may be evaluated against different extracellular matrices:

Product Number
Description
Pkg Size
TV3490096K CultreCoat® BME 96 Well Cell Adhesion Assay 96 wells
TV3491096K CultreCoat® Laminin I 96 Well Cell Adhesion Assay 96 wells
TV3492096K CultreCoat® Collagen I 96 Well Cell Adhesion Assay 96 wells
TV3493096K CultreCoat® Collagen IV 96 Well Cell Adhesion Assay 96 wells
TV3494096K CultreCoat® Fibronectin 96 Well Cell Adhesion Assay 96 wells
TV3495096K CultreCoat® Vitronectin 96 Well Cell Adhesion Assay 96 wells
TV3490696K CultreCoat® BME 96 Well Adhesion Protein Array
Assess adhesion on Laminin, Collagen I, Collagen IV, Fibronectin, and Vitronectin
96 wells

Please contact our Technical Support Team for more information about these products.

Meridian Life Sciences - Tru Block™ Heterophilic Blocker
Put the Brakes on False Positive Results with the Most Powerful Heterophilic Blocker

  • Effective against Heterophilic Antibodies to mouse (HAMA) and other animals
  • Extensive Quality Control
  • HAMA Assay run on each lot
  • Large lot capability
  • Lot-to-lot consistency

Product Number
Description
Package Size
BDA66800H TRU Block™ 100 mg

Please contact our Technical Support Team for more information about this product.

New Literature

Greiner Bio-One – Labware Product Brochure

This new brochure features Greiner Bio-One’s quality labware for cell culture as well as their light protection tubes, shorty pipettes, half-area microplates and much more.
Click here to view the PDF version.

 

Active Motif – Motifvations Newsletter – March 2009

This issue features an article on Retroviruses, Chromatin Structure and Transcriptional Regulation. It includes information on magnetic chromatin immunoprecipitation, chromatin assembly, methylated DNA analysis and histone purification.

 

Assay Designs – 2009-10 Catalogue

The new catalogue contains information on Assay Designs products, including multiplex kits, immunoassay kits, activity/detection kits, antibodies and proteins. They are specialized in the fields of Heat Shock, Apoptosis, Cell Signaling, GPCR, Neuroscience, Oxidative Stress, etc.

 

Chromatographic Specialties Inc - Chromspec Chronicle

The spring issue features:
- YMC - Column and C18 selection guides
- Agilent Bio-Monolith HPLC Columns - easing your separation anxieties.
- Orochem OroSil ODS columns - designed to replace Inertsil HPLC columns without involving method modification
- CHROMSPEC™ lamps for Waters® Detectors
- New Supplier: Vortex - dissolution solutions.
- Looking for hard to replace parts for your GC or LC Instrumentation? CSI has the answer.
Click here to view the online PDF.

Contact our Technical Support Team or call 1-888-593-5969 to request a your copies!

Promotions

Polyplus Transfection - Special Introductory Pricing on jetPRIME™ DNA Transfection Reagent

  • Outstanding efficiency with extremely low toxicity
  • Uses low amounts of DNA - Uses only 2 µg of DNA per well in 6-well plates
  • Efficient transfection into mammalian cell lines such as HeLa, HEK-293 and CHO cells
  • Very Convenient: No medium changes required, compatible with serum and antibiotics

For a limited time, take advantage of introductory prices.
Click here for pricing details.
Offer valid until April 30th, 2009

Samples are available - contact our Technical Support Team

AthenaES® - Special Introductory Trial Pricing and Free T-Shirt Offer

Athena's proprietary Expression Media are world renowned for their reliability and superior performance in the production of recombinant proteins. For a limited time, take advantage of special pricing on the following items:

  • Animal Product Free Media Optimization Kit
  • FNC Coating Mix® - complete serum-free medium; increases attachment of cells
  • Atholate™ Packets - proprietary blend of plant protein hydrolysates that are APF Certified™ and match the performance and nutritional characteristics of standard casein hydrolysate
  • The first 10 customers who order AthenaES® products from MJSBioLynx will receive a free AthenaES® T-Shirt.

Click here for promotion details

Offer valid until March 31, 2009 or while quantities last
Cannot be combined with any other offers or discounts

Greiner Bio-One - Free Pizza Party Promotion is Back!

For the cold Canadian winter months of January to March 2009 - enjoy hot, delicious pizza on us! Our thank you to our wonderful MJSBioLynx customers.

Accumulate $500 in Purchases of Greiner Bio-One Products from MJSBioLynx and Receive a $50 Pizza Gift Certificate.

Click here for more information.

Greiner Bio-One offers high quality labware such as cell culture labware, microplates and tubes.

Limit 2 Pizza Parties per Lab
Cannot be combined with other offers
Please refer to promotional code GR1309

Assay Designs - 50% OFF an ImmunoSet Buffer Pack with the Purchase of Any ImmunoSet

The Assay Designs ImmunoSet Buffer Pack provides an all-purpose buffer that is easily modified to coat, block, and wash plates in addition to diluting standards and samples. TMB substrate and acid stop solution for colour development and reaction termination are also supplied.

This offer is valid until April 30th, 2009

Click here for details.

Active Motif - Order ChIP-IT™ Express HT and Receive a FREE MAG-96 Magnetic Stand

ChIP-IT™ Express HT allows you to perform chromatin IP in a fast, reproducible high-throughput format. It combines the efficiency of the groundbreaking magnetic bead-based ChIP-IT™ Express Kit with a 96-well plate format, enabling the rapid and efficient processing of a large number of ChIP reactions.

This offer is available while quantities last

Click here for promotion details

Technical Report

The DUALmembrane System – Detection of Novel Interaction Partners for Integral Membrane Proteins - by Dualsystems Biotech

Protein-protein interactions play a crucial role in every living organism and the information about protein(s) associated with a certain protein of interest (so called “interactors”) largely contributes to our understanding of cellular processes at the molecular level. A wide range of fundamental biological processes such as cell signaling, transport of membrane-impermeable molecules, cell-cell communication, and cell adhesion are mediated by membrane proteins. Due to their pivotal role in many cellular processes, their direct link to human diseases and their extracellular accessibility to drugs, the identification of proteins associated with integral membrane proteins is desirable. No wonder that, for the above-mentioned reasons, there is a strong demand from both academic researchers and biotech-pharma companies to gain further insight into pathways and interactions involving membrane proteins. However, due to their complex chemical properties, membrane proteins are very hard to manipulate, making the study of their corresponding interactors even more challenging.

The DUALmembrane System reliably detects interactions between integral membrane proteins and receptor subunits and co-receptors, as well as membrane-associated proteins and soluble proteins. The system is based on the properties of ubiquitin, a small protein modifier that is conserved in all eukaryotes and plays a primary role in protein degradation. In this system, the reporter protein is a fusion of the DNA-binding domain of the LexA protein and the Herpes simplex VP16 transactivator. The reporter is fused to the Cub moiety, which in turn is fused to an integral membrane protein (depicted in red, called Cub-TF). A transmembrane prey protein (depicted in green) is fused to the NubG moiety. The only requirement is that both Cub and NubG are located on the cytoplasmic face of the membrane. Co-expression of Bait-Cub-TF with a non-interacting Prey-NubG does not lead to the formation of split-ubiquitin nor cleavage by UBPs, resulting in cells that are His3- and lacZ- (left panel). If bait and prey interact, Cub and NubG are brought into close proximity, where they will form split-ubiqutin, resulting in cleavage and liberation of the TF reporter. The reporter is now free to enter the nucleus, where it will bind and activate the reporter genes to result in cells that are His+ and that turn blue in a ß-galactosidase assay.

DUALmembrane baits

In the DUALmembrane system, a given transmembrane bait can either be a Type I (C-terminus in the cytosol) or Type II (C-terminus outside the cell or in the lumen of ER, Golgi etc.) transmembrane (TM) protein. In the case of a Type I TM protein, the Cub-TF portion is fused to its C-terminus so that the Cub-TF portion faces the cytosol, thus generating a Bait-Cub-TF fusion. If a bait to be studied in the DUALmembrane system is a Type II TM protein, the TF-Cub portion has to be fused to N-terminus (TF-Cub-Bait). In both cases, an interaction between an integral membrane protein and a prey protein will result in the cleavage after the last amino acid of the Cub domain, thus liberating either TF (in the case of the Type I TM bait) or TF-Cub (in the case of Type II TM bait).

 

 


DUALmembranes preys

In the Dual membrane system, a given prey protein (or a cDNA library) can be studied in either Y-NubG (where Y is cDNA or genomic DNA insert) or NubG-Y orientation. In the case of a Type I TM prey, the cDNA (or a library of cDNAs encoding potential interactors) is fused at its C-terminus with the NubG domain, whereas in the case of a Type II prey, it is fused at its N-terminus with the NubG domain. In this way, it is possible to identify both Type I (Y-NubG orientation) and Type II (NubG-Y orientation) transmembrane proteins that interact with a particular membrane bait protein.

 

 

 

The DUALmembrane System is available from Dualsystems Biotech in both convenient kit form and as a custom screening service. The DUALmembrane starter kits screen full-length integral membrane proteins for interactions in vivo under the physiological conditions at the membrane, with novel interactions identified through screening of cDNA libraries. It also allows easy subcloning of full-length cDNA inserts using Sfi I restriction site. With the custom DUALmembrane screening service, researchers can save time and money by leveraging Dualsystems Biotech’s extensive experience and expertise in identifying novel interaction partners for proteins of interest. Custom screening is particularly useful for detecting weak or transient interactions.

Dualsystems Biotech is focused on the development of products and services in the emerging area of interactive proteomics. Their areas of expertise include genetic screening in yeast, screening for protein-protein interactions, yeast expression systems and construction of cDNA libraries. Please contact the MJSBioLynx Inc. Technical Support Team for more information on products from Dualsystems Biotech.

Tradeshows

Visit MJSBioLynx at the following tradeshows.

Tradeshow
Location
Date
Southern Alberta Scientific
Equipment Tradeshow
University of Calgary March 11, 2009

 

Announcement

Macherey-Nagel - KitFinder Tool for Nucleic Acid and Protein Purification

Macherey-Nagel introduces a new feature of their website, the Bioanalysis KitFinder by Application. This new tool guides you to recommended Macherey-Nagel when you enter information about your application, sample material and daily throughput.Once the search is complete, you will obtain the specification and application data for the kit that best suits your needs.

Visit www.mn-net.com/BioKitFinder to start using this tool.

Please contact our Technical Support Team for more information on purification products from Macherey-Nagel


Tech Support Link
 
1-888-593-5969
P.O. Bag 1150, 300 Laurier Blvd., Brockville, Ontario, Canada, K6V 5W1, Fax: (613) 342-1341

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