You searched for: Protein Linking and Labeling Systems

Supplier: G-Biosciences

The OneQuant™ format prevents loss of reagent due to repeated weighing as each vial contains only 1 - 2 mg HOOK™ Biotin Reagent.

Supplier: Biotium

CF®DI aminooxy dyes react with aldehyde/ketone groups on proteins or other biomolecules to form a stable oxime bond. The CF®DI dyes (CF®488DI, CF®555DI and CF®647DI) are designed to match each other for molecular weight and charge. The molecular weights of the same protein conjugated to different CF®DI dye colors are close to each other and the pl of the labeled proteins remains the same.

Supplier: Biotium

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

Supplier: Biotium

CF® Dye alkynes react with azide groups via copper-catalysed bioorthogonal cycloaddition. Can be used to fluorescently detect or label azide groups on target molecules. CF® Dye alkynes can also be used as building blocks to form fluorescent polymers.

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.

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).

Supplier: ENZO LIFE SCIENCES

Bio-16-ddUTP (Biotin-16-2’,3’-dideoxyuridine-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-16-ddUMP. Biotin-labelled oligonucleotides produced by this reaction are suitable as hybridisation probes and nucleic acid array assays. It is also a substrate for Taq DNA polymerase and other DNA polymerases.

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.

Supplier: ENZO LIFE SCIENCES

Gold 550 [Cyanine-3E] dUTP is a cyanine-3 derivative with enhanced spectral properties. This nucleotide analogue 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.

Supplier: Biotium

Biotium offers a number of reactive dye formats for labelling proteins, nucleic acids, and other biomolecules with fluorescent dyes. CF® dyes offer advantages in brightness and photostability compared other similar commercial dyes. CF® dyes are available in a number of reactive dye formats for CF® dye colours span the visible and near-infrared spectra.

Supplier: Biotium

CF® dye picolyl azide reacts with alkyne to form 1,2,3-triazole by 1,3-dipolar Huisgen cycloaddition through the use of a much lower copper (I) concentration without sacrificing reaction efficiency. The selected CF® dyes are exceptionally bright and photostable, making them the perfect dye for fluorescence detection.

Supplier: Biotium

CF™ dye azide reacts with alkyne to form 1,2,3-triazole by copper(I) catalysed 1,3-dipolar Huisgen cycloaddition. It could also undergo Staudinger ligation with a phosphine containing compound.

Supplier: Biotium

Streptavidin conjugates can be used to detect biotinylated molecules with extremely high sensitivity. They are commonly used as secondary reagents to detect biotinylated primary probes such as antibodies in flow cytometry, Western blotting, immunocytochemistry and other applications.

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.

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.

Supplier: Biotium

Carbocyanine dyes with long hydrocarbon chains have low fluorescence in aqueous phase, but become highly fluorescent upon binding to lipid bilayers, making this class of dyes ideal for staining cell membranes. Carbocyanine dye membrane staining is very stable, with minimal dye transfer between cells. Dilinoleyl carbocynaine dyes have much faster lateral diffusion rates than regular carbocyanine dyes, which facilitates labelling of neurons in tissues.

Supplier: ENZO LIFE SCIENCES

Organelle-ID RGB® reagent IV is a mixture of cell-permeable red fluorescent endoplasmic reticulum dye, green fluorescent lysosomal dye, and blue fluorescent nucleic acid dye.

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.

Supplier: Biotium

Bungarotoxins are venom toxins from the many-banded krait (Bungarus Multicinctus), which inhibit neurotransmission at the neuromuscular junction. Alpha-bungarotoxin is a potent inhibitor for the motor endplate acetylcholine receptor (Kd = 1 nM to 1 pM). Beta-bungarotoxin contains a small subunit that blocks voltage-gated K+ channels on the presynaptic membranes, and a large subunit that has phospholipase A2 activity. Fluorescent conjugates of alpha-bungarotoxin can be used to label acetylcholine receptors in skeletal muscle endplates.

Supplier: ENZO LIFE SCIENCES

Red 580 [5-ROX] dUTP 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 labelled probes can be prepared with this fluorescent nucleotide by a variety of methods including nick translation, random prime labelling, cDNA labelling and 3’-end labelling. Probes generated by these methods are suitable for use for the identification of specific sequences by in situ hybridization procedures on fixed cells and tissues by direct fluorescence detection. Red 580 dUTP can also be used for multicolor fluorescence labelling.

Supplier: ENZO LIFE SCIENCES

Aqua 431 [DEAC] dUTP is a coumarin derivative that 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 labelled probes can be prepared with this fluorescent nucleotide by a variety of methods including nick translation, random prime labelling, cDNA labelling and 3’-end labelling. Probes generated by these methods are suitable for use for the identification of specific sequences by in situ hybridization procedures on fixed cells and tissues by direct fluorescence detection. Aqua 431 dUTP can also be used for multicolor fluorescence labelling.

Supplier: ENZO LIFE SCIENCES

Orange 552 dUTP (5-TAMRA-dUTP) 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 labeling and 3’-end labeling. Probes generated by these methods are suitable for use for the identification of specific sequences by in situ hybridization procedures on fixed cells and tissues by direct fluorescence detection. Orange 552 dUTP can also be used for multicolor fluorescence labeling.

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.

Supplier: ENZO LIFE SCIENCES

Bio-16-dUTP (Biotin-16-2’-deoxyuridine-5’-triphosphate) 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.

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.

Supplier: G-Biosciences

SDC™ (Steroid/Drug/Compound) Immobilisation Kit is designed for the immobilisation of steroids, drugs and chemical compounds that lack primary amines, sulfhydryls, carbonyls and other common coupling groups to a solid-phase agarose support for the use in affinity purification. The kit uses Immobilised DADPA (diaminodipropylamine) resin to bind steroids, drugs and chemicals through their active hydrogens.

Supplier: ENZO LIFE SCIENCES

Gold 525 [5(6)-Carboxyrhodamine 6G] dUTP 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 labelled probes can be prepared with this fluorescent nucleotide by a variety of methods including nick translation, random prime labelling, cDNA labelling and 3’-end labelling. Probes generated by these methods are suitable for use for the identification of specific sequences by in situ hybridization procedures on fixed cells and tissues by direct fluorescence detection. Gold 525 dUTP can also be used for multicolor fluorescence labelling.

Supplier: Rockland Immunochemicals

Avidin is biotin-binding protein, tetramer and suitable for used as a antigen, control and standard in assays. Avidin fluorescein, rhodamine, alkaline phosphatase, Texas Red™ conjugated are suitable for immunofluorescence microscopy, fluorescence based plate assays (FLISA) and fluorescent Western blotting. Avidin conjugated with glucose oxidase and peroxidase are useful as a detection reagent for primary antibodies conjugated with biotin and also can be utilised in Western blotting and ELISA experiments with proper substrates.

Supplier: ENZO LIFE SCIENCES

The kit offers a set of six different MAbs specific for serine 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. Clone 16B4 strongly interacts with pSK and pSP motifs, thus specifically recognizes substrates of MAP/SAP Kinases and CDC kinases.Clones 1C8, 4A3, 4A9, 4H4 and 7F12 interact with epitopes containing phosphoserine in the context of positive or neutral aa (e.g. substrates of PKA, PKB, PKC, PKG etc.) Though revealing a similar pattern in epitope mapping using phosphopeptide libraries, these antibodies interact with different sets of phosphoproteins in whole cell lysates.

Supplier: Biotium

Dihydrorhodamine 123 is the reduced form of rhodamine 123, which is a commonly used fluorescent mitochondrial dye. It is non-fluorescent, but it readily enters most of the cells and is oxidized by oxidative species or by cellular redox systems to the fluorescent rhodamine 123 that accumulates in mitochondrial membranes. It is useful for detecting reactive oxygen species including superoxide (in the presence of peroxidase or cytochrome c) and peroxynitrite. Dihydrorhodamine 123 dihydrochloride is functionally equivalent to dihydrorhodamine 123 but with increased stability toward air oxidation and light during storage. Dihydroethidium (also called hydroethidium) is the chemically reduced form of the commonly used DNA dye ethidium bromide. The probe is useful to detect oxidative activities in viable cells, including respiratory burst in phagocytes. Dihydroethidium itself has blue fluorescence (355/420 nm) in cells, while the oxidized form ethidium has red fluorescence (518/605 nm) upon DNA intercalation. H2DCFDA (2′,7′-Dichlorodihydrofluorescein diacetate) is a useful fluorogenic reagent to detect reactive oxygen intermediates in cells. On oxidation, H2DCFDA becomes the highly green fluorescent 2′,7′-dichlorofluorescein, 504/529 nm (end product).