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Protein Linking and Labeling Systems

Protein linking and labeling systems provide a convenient means for attaching fluorescent labels or biotins to antibodies and larger proteins. These kits are ideal for use with multiple applications, including flow cytometry, fluorescent microscopy, immunohistochemistry, primary detection, ELISAs, immunocytochemistry, and FISH. These systems are available with a variety of dye colors, biotin, fluorescent agents, and all the components needed to perform multiple conjugations and purifications. Protein labeling follows a simple protocol of reaction, separation, and then use.

VWR® Antibody signal enhancer

VWR® Antibody signal enhancer

Supplier: VWR Chemicals

Antibody Signal Enhancer is a Western blotting antibody diluent that increases intensity of protein detection up to 5-fold compared to conventional blotting.

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ZnAF-2.tetrahydrochloride

Supplier: ENZO LIFE SCIENCES

Fluorescent probe for Zn2+

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SeramunBlock

Supplier: Apollo Scientific

Combined Stabiliser/ blocking solution for solid phase immobilised proteins effecting protein stabilisation and blocking of free surfaces.

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Antibody labelling kits, Mix-n-Stain™ CF™ Dye

Antibody labelling kits, Mix-n-Stain™ CF™ Dye

Supplier: Biotium

Label your antibody with one of our superior CF® Dyes in 30 minutes without a purification step. Labelling tolerates many common buffer components including BSA and ascites.

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femtoCHROMO™- AP Substrate for chromogenic detection

femtoCHROMO™- AP Substrate for chromogenic detection

Supplier: G-Biosciences

A ready to use modified BCIP (5-Bromo-4-Chloro-3’-Indolyphosphate p-Toluidine salt) and NBT (Nitro-Blue Tetrazolium Chloride) substrate that generates a black-purple insoluble precipitate in the presence of alkaline phosphatase.

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CF™ dye bovine serum albumin conjugates

Supplier: Biotium

Fluorescent bovine serum albumin (BSA) conjugates are commonly used as tracers in applications where physical dimensions are important. The conjugates can also be used for quantitative studies of electroporation, measurement of plasma volume in rats, and endocytosis studies. CF™ dye BSA conjugates are labelled with fluorescent CF™ dyes, which offer advantages in brightness and photostability compared to other fluorescent dyes.

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Amine reactive biotin reagents, HOOK™

Supplier: G-Biosciences

HOOK™ d-Biotin (Vitamin H), 500 mg

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GFP-Certified™ FluoForte™ Reagent

Supplier: ENZO LIFE SCIENCES

Calcium dye

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Reactive biotin compounds

Supplier: Biotium

Biotium offers reactive biotin compounds with a variety of reactive functional groups.

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Antibody labelling kits, Mix-n-Stain™ Biotin

Antibody labelling kits, Mix-n-Stain™ Biotin

Supplier: Biotium

Mix-n-Stain™ Biotin antibody labelling kits utilise a technology that allows rapid antibody labelling with biotin without a purification step.

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CF™ Dyes Cholera Toxin Subunit B, CF™ Dye Conjugates

CF™ Dyes Cholera Toxin Subunit B, CF™ Dye Conjugates

Supplier: Biotium

Cholera toxin subunit B conjugated to Biotium's next-generation fluorescent CF™ dyes.

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Annexin V conjugates

Annexin V conjugates

Supplier: Biotium

Annexin V fluorescent conjugates can be used to detect apoptotic cells. Annexin V is available conjugated to a wide variety of dyes.

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Stabiliser for calibrators and controls, SeramunStab® STD

Supplier: Apollo Scientific

Liquid product yellow odourless pH-value 7,3 to 7,5 Boiling point 102 °C. Stabiliser for complex mixtures of biomolecules.

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CF® Dye hydrazide

CF® Dye hydrazide

Supplier: Biotium

Fluorescent CF® Dye hydrazides are bright, extremely water-soluble, nontoxic molecules, useful as aldehyde-fixable cell tracers. They can also be used to label aldehyde or ketone groups of polysaccharides, carbohydrates or glycoproteins.

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CGH labeling kit, CYTAG®

Supplier: ENZO LIFE SCIENCES

Comparative genomic hybridisation (CGH) is a powerful diagnostic tool for detecting DNA copy number gains and losses associated with chromosome abnormalities. CGH provides an understanding of genetic disorders, cancers and other genomic aberrations.

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Stabiliser for sensitive biomolecules, SeramunStab® STB

Supplier: Apollo Scientific

Liquid product colourless to slightly yellow, freshly solutions opaleszent, odour weakly pH 7,3 to 7,5 boiling point 104 °C. Stabiliser for sensitive biomolecules like proteohormones or membrane proteins.

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NEDDylation kit

Supplier: ENZO LIFE SCIENCES

This kit provides the means of generating a thioester-linked NEDD8-conjugated E2 enzyme, utilizing the first two steps in the NEDD8 cascade, for use in the NEDDylation of E3 ligases and target substrate proteins (user supplied). A NEDD8-specific antibody is provided for detection of NEDDylated proteins via SDS-PAGE and Western blotting.

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Carboxyl coupling resin

Carboxyl coupling resin

Supplier: G-Biosciences

Carboxyl coupling resin consists of 6% cross-linked agarose with covalently linked diaminodipropylamine (DADPA) to generate a free primary amine at the end of a long spacer arm. Molecules, including proteins, peptides and nucleic acids, are covalently coupled to the free primary amines, and the stable columns are ideal for affinity purification of antibodies and other interacting partners.

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Tyramide amplification kit with HRP goat, anti-rabbit and CF® dye or biotin tyramide

Supplier: Biotium

Kits for increasing immunofluorescence sensitivity using HRP-catalysed tyramide signal amplification with the choice of next-generation fluorescent CF® dyes or biotin.

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Bio-N⁶-ddATP

Bio-N⁶-ddATP

Supplier: ENZO LIFE SCIENCES

Bio-N⁶-ddATP (Biotin-N⁶-(2’,3’-dideoxy)adenosine-5’ triphosphate) can be used for 3’-end labelling of single-stranded or double-stranded DNA. It is especially useful as a substrate for terminal transferase for the 3’-terminal addition of a single Bio-N⁶-ddAMP. It is also a substrate for Taq DNA Polymerase and other DNA polymerases.

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Bio-7-dATP

Bio-7-dATP

Supplier: ENZO LIFE SCIENCES

Bio-7-dATP (Biotin-7-2’-deoxyadenosine-5’-triphosphate) can replace dATP in reactions in which it serves as a substrate for E. coli DNA polymerase (holoenzyme and Klenow fragment), T4 and Taq DNA polymerases, reverse transcriptase (from AMV and M-MuLV) and terminal transferase.

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Allylamine-dUTP

Allylamine-dUTP

Supplier: ENZO LIFE SCIENCES

Allylamine-2’-deoxyuridine-5’-triphosphate (Allylamine-dUTP) can replace TTP in reactions where it serves as a substrate for E.coli DNA polymerase 1 (holoenzyme and Klenow fragment), terminal deoxynucloetide transferase, T4 and Taq DNA polymerases, and reverse transcriptases (from ALV and MLV).

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Fluorescein-12-UTP

Supplier: ENZO LIFE SCIENCES

Fluorescein-12-UTP is ideal for in vitro transcription reactions catalysed by T3, T7, or SP6 RNA polymerases and reverse transcriptase to produce fluorophore-labeled RNA transcripts. RNA-based probes can be used to identify complementary sequences by in situ hybridisation to fixed cells and tissues by direct or indirect fluorescence detection or by membrane hybridisation procedures.

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Red 650 dUTP

Supplier: ENZO LIFE SCIENCES

Red 650 [Cyanine-5E] dUTP is a cyanine-5 derivative with enhanced spectral properties. This nucleotide analog can replace TTP in reactions in which it serves as a substrate for E.coli DNA polymerase (holoenzyme and Klenow fragment), T4 and Taq DNA polymerases, reverse transcriptase (from AMV and M-MuLV) and terminal transferase. Fluorescently labeled probes can be prepared with this fluorescent nucleotide by a variety of methods including nick translation, cDNA labelling and 3'-end labelling.

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Phosphothreonine detection set

Supplier: ENZO LIFE SCIENCES

This kit offers a set of three different monoclonal antibodies specific for threonine phosphorylation sites. Phosphorylation patterns in a given cell extract may differ when probed with different antibodies due to sequence specificity. Recognition therefore depends on two criteria: Phosphorylation and surrounding aa motif. If one of the two criteria is not fulfilled, the antibody will not detect the phosphorylation site.

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Phalloidin conjugates

Phalloidin conjugates

Supplier: Biotium

Phalloidin is a toxin isolated from the deadly Amanita phalloides mushroom. It is a bicyclic peptide that binds specifically to F-actin. Fluorescent conjugates of phalloidin are convenient tools to investigate the distribution of F-actin in fixed and permeabilised cells or tissue sections. One unit (U) of phallodin is sufficient to stain one sample (200 µl staining volume). A highly selective actin filament stain for fixed and permeabilised cells. Labeled phalloidins have similar affinity for both large and small filaments.

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Phosphotyrosine detection set

Supplier: ENZO LIFE SCIENCES

This kit offers a set of seven different MAbs specific for tyrosine phosphorylation sites. Phosphorylation patterns in a given cell extract may differ when probed with different antibodies due to sequence specificity. Recognition therefore depends on two criteria: Phosphorylation and surrounding aa motif. If one of the two criteria is not fulfilled, the antibody will not detect the phosphorylation site. Specificity has been determined by epitope mapping using degenerated phosphopeptide libraries.

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AMC (7-Amino-4-methylcoumarin) standard

Supplier: ENZO LIFE SCIENCES

Fluorogenic chromophore. Ex(max): 380nm, Em(max): 460nm. Reference compound.

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Nuclear-ID™ Blue/Red cell viability reagent (GFP-Certified™)

Supplier: ENZO LIFE SCIENCES

Cell viability dye

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femtoCHROMO™- HRP Substrate for chromogenic detection

femtoCHROMO™- HRP Substrate for chromogenic detection

Supplier: G-Biosciences

A ready to use modified TMB (3, 3’, 5, 5’-Tetramethylbenzidine) substrate is used that generates a dark blue precipitate in the presence of horseradish peroxidase.

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