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Catalog Number: (PI16138)
Supplier: Invitrogen
Description: Thermo Scientific EZ-Link™ Desthiobiotinylation and Pull-down Kit is a complete set of reagents to biotin-label purified proteins and use them to purify interaction complexes using streptavidin agarose resin with mild elution conditions.


Supplier: Invitrogen
Description: Thermo Scientific Imject Maleimide-Activated Blue Carrier Protein enables conjugation of sulfhydryl-containing peptide antigens to this soluble immunogenic carrier protein for immunization and effective antibody production.
Catalog Number: (PI88341)
Supplier: Invitrogen
Description: The Thermo Scientific™ Pierce™ BSA Protein Digest Standard, LC-MS Grade, is a validated protein digest optimized for use as a quality control sample for liquid chromatography (LC) and mass spectrometry (MS) analysis of proteomic samples.Positive control sample—BSA digest optimized and validated as a quality control standard for mass spectrometry applicationsExcellent sequence coverage—greater than 85% sequence coverageValidated peptide quality—digestion procedure optimized for minimal missed cleavages and over-alkylationRigorously tested—high-quality, consistent BSA protein digest documented via lot-specific certificates of analysisStable—provided in a stable lyophilized formatThe Pierce BSA Protein Digest Standard is produced using high quality bovine serum albumin (BSA) and mass spectrometry-grade trypsin. The BSA is fully reduced, alkylated (iodoacetamide), and desalted (C18) after trypsin digestion to provide a quality LC/MS-grade standard that is free of intact protein. The peptide digest standard provides excellent sequence coverage with minimal over-alkylation and missed cleavages. This digest standard has been robustly tested for peptide quality, digestion efficiency, and lot-to-lot uniformity and is suitable for LC and LC-MS applications.

Catalog Number: (PI88378)
Supplier: Invitrogen
Description: Thermo Scientific™ 96-Well Plates are manufactured using high-quality polystyrene and are high-binding with black, flat well bottoms to accommodate fluorescence assays such as the Pierce™ Quantitative Fluorometric Peptide Assay.


Catalog Number: (PI23295)
Supplier: Invitrogen
Description: Thermo Scientific™ Peptide Digest Assay Standard is a validated protein digest reference sample optimized for use in quantitative peptide assays to improve reproducibility and accuracy.Robust peptide assay standard—the only commercially available peptide digest standard that has been developed for use in a quantitative peptide assayValidated—validated for both the Pierce Quantitative Fluorometric Peptide Assay and the Pierce Quantitative Colorimetric Peptide Assay with comparable standard curves using both assaysStable—liquid formulation is stored at 4⁰C, eliminating variability due to freeze-thawsEasy-to-use—provided in a liquid format with a known peptide concentrationThe Peptide Digest Assay Standard was designed as reference standard for use with the Pierce Quantitative Fluorometric and Colorimetric Peptide Assays to augment the reproducibility and accuracy of peptide quantitation in a microplate-based assay.The reference protein has been digested with MS-grade trypsin to minimize missed cleavages

Supplier: Invitrogen
Description: Thermo Scientific™ Pierce PNPP Substrates are powders, tablets, solutions and complete kits of p-nitrophenyl phosphate, a colorimetric, soluble substrate of alkaline phosphatase for use in ELISA applications

PNPP (p-Nitrophenyl Phosphate, Disodium Sal) is a widely used substrate for detecting alkaline phosphatase in ELISA applications. When alkaline phosphatase and PNPP are reacted, a yellow water-soluble reaction product is formed. This reaction product absorbs light at 405 nm. Pierce PNPP is available in four formats: dry crystalline powder, single-use tablets, a stable substrate solution, and a complete kit containing substrate solution and diethanolamine buffer.

Thermo Scientific Pierce PNPP (p-Nitrophenyl Phosphate, Disodium Salt) is a colorimetric, soluble substrate of alkaline phosphatase for use in ELISA applications. When alkaline phosphatase and PNPP are reacted, a yellow water-soluble reaction product is formed. This reaction product absorbs light at 405 nm.
Catalog Number: (PI34035)
Supplier: Invitrogen
Description: NBT (nitro-blue tetrazolium chloride) yields a blue-purple, water-insoluble product upon reduction of the tetrazolium salt

Catalog Number: (PI35000)
Supplier: Invitrogen
Description: Thermo Scientific Pierce Peroxidase Suppressor is a stable, easy-to-use inhibitor of endogenous peroxidase activity from cells and tissues to reduce background signal in HRP-based immunohistochemistry applications.

Catalog Number: (PI34065)
Supplier: Invitrogen
Description: Thermo Scientific Pierce™ Metal-Enhanced DAB Substrate Kit uses cobalt and nickel chloride in a special formulation of diaminobenzidine peroxidase substrate.

Catalog Number: (PI33043)
Supplier: Invitrogen
Description: Thermo Scientific Pierce TMEA is a trifunctional crosslinker containing three reactive maleimide groups to enable three-way conjugation and polymerization of sulfhydryl-containing molecules.

Catalog Number: (PI34002)
Supplier: Invitrogen
Description: The Thermo Scientific Pierce DAB Substrate Kit enables chromogenic detection of horseradish peroxidase (HRP) activity based the action of 3,3'-diaminobenzidine (DAB) in Western blot and tissue staining methods.

Supplier: Invitrogen
Description: The amine group is the most common target for modifying protein molecules because it is abundant in the majority of proteins either due to the presence of lysine bearing amino side chain functionality or the N-terminal-amine. Amine-reactive biotinylation reagents can be divided into two groups based on water solubility: NHS-esters and sulfo-NHS-esters.

Catalog Number: (PI22297)
Supplier: Invitrogen
Description: Thermo Scientific Pierce BMPH is a short, maleimide-and-hydrazide crosslinker for conjugating sulfhydryls (cysteines) to carbonyls (aldehyde or ketones, such as those formed by oxidation of glycoprotein carbohydrates).

Catalog Number: (PI78870)
Supplier: Invitrogen
Description: Extract and purify genomic and plasmid DNA from yeast in less than one hour using the materials provided in this kit.

Catalog Number: (PI20159)
Supplier: Invitrogen
Description: Pierce, Transfer RNA at 10 mg/mL in 10 mM HEPES, Sufficient for 100 binding reactions


Catalog Number: (PI17892)
Supplier: Invitrogen
Description: Thermo Scientific Pierce EDTA is useful as a chelator of alkaline earth metals, as well as iron, copper and zinc in a variety of laboratory methods.

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
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