Proteintests
Die genaue Quantifizierung der Gesamtproteinkonzentration ist entscheidend für die meisten Experimente und häufig notwendig für die Isolierung, Trennung und Analyse von Proteinen mittels biochemischer Methoden. Wenn es erforderlich ist, die Gesamtproteinkonzentration in einer Probe zu bestimmen, ist einer der ersten Faktoren die Auswahl einer geeigneten Proteinbestimmungsmethode. Diese Auswahl basiert in der Regel auf der Kompatibilität der Methode mit den zu untersuchenden Proben. Jede Methode hat ihre eigenen Vor- und Nachteile.
Compat-Able™ Protein assay preparation reagent set
Supplier: Thermo Fisher Scientific
The Compat-Able™ Protein assay preparation reagent set eliminates interfering substances from protein assay samples to make them compatible with BCA and Bradford assays.
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Coomassie Plus™ protein assay kit, Compat-Able™
Supplier: Thermo Fisher Scientific
The Thermo Scientific™ Compat-Able™ Coomassie Plus Protein Assay Kit eliminates interfering substances from protein assay samples to make them compatible with BCA and Bradford assays.
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Marfey's reagent (FDAA or 1-fluoro-2-4-dinitrophenyl-5-L-alanine amide), Pierce™
Supplier: Thermo Fisher Scientific
Marfey's Reagent (FDAA or 1-fluoro-2-4-dinitrophenyl-5-L-alanine amide) reacts with primary amines to enable the quick and easy separation and quantitation of optical isomers of amino acids by reverse-phase chromatography.
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Firefly luciferase flash assay kit, Pierce™
Supplier: Thermo Fisher Scientific
The Pierce™ Firefly Luciferase Flash Assay Kit provides reagents to measure red firefly luciferase activity in whole cell producing a very strong flash signal which decays rapidly.
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Antibody labelling kits, HisTag® Antibody HRP Conjugate kit
Supplier: Merck Millipore (Novagen)
The HisTag® Antibody HRP Conjugate kit contains a horseradish peroxidase-conjugated HisTag® Monoclonal Antibody that is useful as a single detection reagent, thus eliminating cross-reactivity associated with secondary antibody reagents. It recognises five consecutive histidine residues regardless of the surrounding amino acid context. The purified antibody conjugate produces a strong signal at a 1:1000 to 1:2000 dilution on Western blots and dot blots. The HisTag® Antibody HRP Conjugate also detects the recombinant marker bands in the Novagen Perfect Protein™ Western Markers for convenient visualisation of accurate internal standards on Western blots.
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Solid phase biotinylation kits, EZ-Link™, Pierce™
Supplier: Thermo Fisher Scientific
This antibody labeling system uses nickel chelated agarose to temporarily immobilise antibody molecules via their histidine-rich Fc regions. Once held in place on the gel, the antibody can be biotinylated at either sulfhydryl groups (after mild reduction or disulfide bonds) or primary amines. Excess labeling reagent and by-products are then washed away before recovering the labeled and purified antibody from the gel using a mild imidazole solution. No gel filtration or dialysis are needed.
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Pierce™ Polyhis-Protein Interaction Pull Down Kit
Supplier: Thermo Fisher Scientific
The Pierce™ his protein interaction pull-down kit contains the necessary components to capture and purify proteins that interact with his-tagged fusion proteins.
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Pierce™ Glycoprotein-Kohlenhydrat-Schätzkits
Supplier: Thermo Fisher Scientific
Mit dem Pierce™ Glycoprotein Carbohydrate Estimation Kit kann der Grad der Proteinglykosylierung als Prozentsatz der gesamten gereinigten Proteinmasse gemessen werden.
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Tetracysteine FLASH Diacetate *2 mM DMSO Solution*
Supplier: AAT Bioquest
FLASH diacetate is a cell-permeable version of FlASH, which is a fluorescein derivative, modified to contain two arsenic atoms at a set distance from each other.
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Tetracysteine REASH Acetate *2 mM DMSO Solution*
Supplier: AAT Bioquest
REASH acetate is a cell-permeable version of REASH, which is a resorufin derivative, modified to contain two arsenic atoms at a set distance from each other.
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BCA protein assay kit (BCA-PAK)
Supplier: OZ BIOSCIENCES
BCA Protein Assay kit (BCA-PAK) is useful for colorimetric detection and quantification of total protein content, even in the presence of detergents.
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Pierce™ Coomassie Plus (Bradford) Protein Assay Reagent
Supplier: Thermo Fisher Scientific
The bradford protein assay is the preferred colorimetric assay for quantifying total protein concentration. The Pierce™ coomassie plus protein assay is a ready-to-use, reducing agent-compatible, improved bradford assay reagent to quickly measure (A595 nm) total protein concentration compared to a protein standard.
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Pierce™ BCA™ Protein assay kits and reagents
Supplier: Thermo Fisher Scientific
Pierce BCA™ (bicinchoninic acid) reagents provide accurate determination of protein concentration with most sample types encountered in protein research. The Pierce BCA™ Protein Assay can be used to assess yields in whole cell lysates and affinity-column fractions, as well as to monitor protein contamination in industrial applications. Compared to most dye-binding methods, the BCA™ Assay is affected much less by protein compositional differences, providing greater protein-to-protein uniformity.
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Modified lowry protein assay kit, Pierce™
Supplier: Thermo Fisher Scientific
The Modified Lowry Protein Assay Kit is the preferred colorimetric assay for quantifying total protein concentration.
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Portelite™ Fluorimetric Protein Quantitation Kit
Supplier: AAT Bioquest
Optimised for CytoCite™ and Qubit™ fluorometers. The Portelite™ fluorimetric protein quantitation kit is significantly more sensitive than existing colorimetric protein measurements, e.g., Bradford and Bicinchoninic acid (BCA) assays.
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LAL Chromogenic endotoxin quantitation kit
Supplier: Thermo Fisher Scientific
Pierce™ LAL Chromogenic Endotoxin Quantitation Kit measures the amount of endotoxin in a protein, peptide or antibody sample using the Limulus Amebocyte Lysate (LAL) assay.



