2265 Results for: "activating reagent"

Supplier: Prosci

Neutralization: To yield one-half maximal inhibition [ND50] of the biological activity of hFGF-5 (27.6 ug/mL), a concentration of 100 ug/mL of this antibody is required. ELISA: In a sandwich ELISA (assuming 100 uL/well), a concentration of 4.0-8.0 ug/mL of this antibody will detect at least 100 pg/mL of recombinant Human FGF-5 when used in conjunction with compatible secondary reagents.

Supplier: Bioss

Luciferase from the firefly has become one of the more widely used reporter proteins for the study of gene expression. Luciferase catalyzes a bioluminescent reaction which requires the substrate luciferin as well as Mg2+ and ATP. Mixing these reagents with the cell extract containing luciferase, results in a flash of light that decays rapidly. This light can be detected by a luminometer. The total light emission is proportional to the luciferase activity of the sample.

Supplier: Bioss

Luciferase from the firefly has become one of the more widely used reporter proteins for the study of gene expression. Luciferase catalyzes a bioluminescent reaction which requires the substrate luciferin as well as Mg2+ and ATP. Mixing these reagents with the cell extract containing luciferase, results in a flash of light that decays rapidly. This light can be detected by a luminometer. The total light emission is proportional to the luciferase activity of the sample.

Supplier: Bioss

Luciferase from the firefly has become one of the more widely used reporter proteins for the study of gene expression. Luciferase catalyzes a bioluminescent reaction which requires the substrate luciferin as well as Mg2+ and ATP. Mixing these reagents with the cell extract containing luciferase, results in a flash of light that decays rapidly. This light can be detected by a luminometer. The total light emission is proportional to the luciferase activity of the sample.

Supplier: Bioss

Luciferase from the firefly has become one of the more widely used reporter proteins for the study of gene expression. Luciferase catalyzes a bioluminescent reaction which requires the substrate luciferin as well as Mg2+ and ATP. Mixing these reagents with the cell extract containing luciferase, results in a flash of light that decays rapidly. This light can be detected by a luminometer. The total light emission is proportional to the luciferase activity of the sample.

Supplier: Enzo Life Sciences

Water soluble and stable nitric oxide radical scavenger that shows in chemical and biological systems antagonistic action against the free nitric oxide radical (NO·). The inhibitory effects were almost 2-fold stronger than those of NMMA and NOARG. Reacts with nitric oxide in a stoichometric manner. Can be used for an improved detection of nitric oxide in activated macrophage cultures in combination with the Griess reagent. Protects against endotoxin shock.

Supplier: Bioss

Luciferase from the firefly has become one of the more widely used reporter proteins for the study of gene expression. Luciferase catalyzes a bioluminescent reaction which requires the substrate luciferin as well as Mg2+ and ATP. Mixing these reagents with the cell extract containing luciferase, results in a flash of light that decays rapidly. This light can be detected by a luminometer. The total light emission is proportional to the luciferase activity of the sample.

Supplier: Bioss

Luciferase from the firefly has become one of the more widely used reporter proteins for the study of gene expression. Luciferase catalyzes a bioluminescent reaction which requires the substrate luciferin as well as Mg2+ and ATP. Mixing these reagents with the cell extract containing luciferase, results in a flash of light that decays rapidly. This light can be detected by a luminometer. The total light emission is proportional to the luciferase activity of the sample.

Supplier: Bioss

Luciferase from the firefly has become one of the more widely used reporter proteins for the study of gene expression. Luciferase catalyzes a bioluminescent reaction which requires the substrate luciferin as well as Mg2+ and ATP. Mixing these reagents with the cell extract containing luciferase, results in a flash of light that decays rapidly. This light can be detected by a luminometer. The total light emission is proportional to the luciferase activity of the sample.

Supplier: Bioss

Luciferase from the firefly has become one of the more widely used reporter proteins for the study of gene expression. Luciferase catalyzes a bioluminescent reaction which requires the substrate luciferin as well as Mg2+ and ATP. Mixing these reagents with the cell extract containing luciferase, results in a flash of light that decays rapidly. This light can be detected by a luminometer. The total light emission is proportional to the luciferase activity of the sample.

Supplier: Peprotech

LIF is a pleiotrophic factor produced by multiple cell types, including T cells, myelomonocytic lineages, fibroblasts, liver, heart and melanoma. LIF promotes long-term maintenance of embryonic stem cells by suppressing spontaneous differentiation. Other activities include the stimulation of acute phase protein synthesis by hepatocytes, stimulation of differentiation of cholinergic nerves, and suppression of adipogenesis by inhibiting the lipoprotein lipase in adipocytes. While human LIF is active on mouse cells and is widely used in the maintenance of murine ESC to prevent spontaneous differentiation, mouse LIF is not active on human cells due to its inability to bind to the human LIF receptor. Recombinant Human LIF is a 19.6 kDa protein containing 180 amino acids residues, including three disulfide bonds. Manufactured using all Animal-Free reagents.

Supplier: Adipogen

10-acetyl-3,7-dihydroxyphenoxazin (Amplex Red) is a non-fluorescent, highly sensitive and stable probe for H2O2. Amplex Red is an applicable as a fluorogenic substrate for peroxidase. In the presence of horseradish peroxidase (HRP), the Amplex Red reagent reacts in a 1:1 stechiometry with H2O2 to produce highly fluorescent resorufin. Because H2O2 is produced in many different enzymatic reactions, the Amplex Red reagent allows researchers to detect the activity of many different enzymes. 10-acetyl-3,7-dihydroxyphenoxazin has absorption and fluorescence emission maxima of approximately 563 nm and 587 nm, respectively, and because its extinction coefficient is high (54,000 cm-1M-1), the assay can be performed either fluorometrically or spectrophotometrically.

Supplier: MP Biomedicals

IPTG (isopropyl-β-thiogalactoside) is an analogue of allolactose that binds specifically to the repressor protein of the lac operon and induces expression of β-galactosidase in Escherichia coli.
IPTG is a commonly used reagent in cloning procedures that require induction of b-galactosidase activity and is used in conjunction with X-Gal in blue-white color selection of recombinant bacterial colonies.
The final concentration typically used in indicator plates is 0.2 mM.

Supplier: ARBOR ASSAYS MS

The Acetylcholinesterase (AChE) Fluorescent Activity Kit from Arbor Assays measures AChE activity in serum, plasma, and erythrocyte membranes by detecting reduced thiol products formed during acetylthiocholine hydrolysis. Using ThioStar®, a proprietary fluorescent reagent, this assay offers sensitive, direct quantification of AChE with a detection range of 6.25 to 100 mU/ml and sensitivity of 0.063 mU/ml. The 20-minute protocol makes it ideal for high-throughput screening in neuroscience, toxicology, and clinical research, especially studies involving Alzheimer's disease and organophosphate exposure. It is species-independent and optimized for rapid performance without the need for wash steps.

Supplier: Spectrum Chemical Mfg. Corp.

Polyethylene Glycol 2000 Monomethyl Ether, commonly referred to as PEG 2000 MONOMETHYLETHER, is a polyether compound that is used in a wide variety of fields including pharmaceutical manufacturing as an excipient and active ingredient. Due to its low toxicity it can be used as a lubricating coating for various surfaces in aqueous and non-aqueous environments, a reagent in biochemistry to create very high osmotic pressures, a polar stationary phase for gas chromatography and as a binder.

Supplier: Beckman Coulter

VersaLyse Lysing solution is a reagent used to lyse red blood cells from any biological fluid and, in particular, to lyse erythrocytes from whole blood. VersaLyse is a highly specific, very gentle lysing solution, suitable for applications such as immunophenotyping, cell sorting, activation or cell culture. It is designed for use in flow cytometry and facilitates obtaining highly discriminative scattergrams whatever the type of flow cytometer used. VersaLyse is a versatile reagent which may be used in lyse/wash, wash/lyse and lyse/no-wash procedures with undiluted or diluted samples. The histograms are dual-parameter light scatter histograms (FS versus SS) of a normal K3EDTA anticoagulated blood sample lysed with VersaLyse Lysing Solution (No-wash procedure).

Supplier: Genetex

May act as a capture antibody when coated directly on microtiter plates, or as a primary detection antibody for specifically captured M13 or fd phage. May be useful in rapidly sorting large phage display libraries (antibody, peptide etc.) with the expressed proteins fused to either the gene III or gene VIII protein of the filamentous phage. May be used as a reagent in ""phage ELISA"" offering sensitive and specific activity for detection of recombinant phages.

Supplier: Thermo Fisher Scientific

Meets CAP and NCCLS specifications for reagent grade, Type 1 water at time of preparation. Ideal for reconstituting chemistry or coagulation products, preparing analytical standards, or rinsing delicate electrodes. Prepared at 18 megohm/cm specific resistance using reverse osmosis, mixed bed deionization, activated carbon filtration, and final filtration to 0.2µm. Contains no preservatives and is essentially free of soluble organics and inorganic particulate contaminants. Certificate of Analysis includes over 60 parameters and analytes.

Supplier: Abcam

Mitochondria isolation kit for tissue is designed for the efficient isolation of mitochondria from hard or soft tissues, providing high-quality mitochondria for downstream analysis. The kit contains enough reagents for up to 10 isolations. - Cited in over 65 publications - Isolates mitochondria from both hard and soft tissues, such as brain, liver, and heart - Suitable for western blotting, immunocapture, or activity assays - Simple Protocol – no need for ultracentrifugation, making the process more efficient and user-friendly

Supplier: Peprotech

IL-3 is a hematopoietic growth factor that promotes the survival, differentiation and proliferation of committed progenitor cells of the megakaryocyte, granulocyte-macrophage, erythroid, eosinophil, basophil and mast cell lineages.  Produced by T cells, mast cells and eosinophils, IL-3 enhances thrombopoiesis, phagocytosis, and antibody-mediated cellular cytotoxicity.  Its ability to activate monocytes suggests that IL-3 may have additional immunoregulatory roles.  Many of the IL-3 activities depend upon co-stimulation with other cytokines.  IL-3 is a species-specific, variably glycosylated cytokine.  Recombinant Human IL-3 is a 15.0 kDa globular protein containing 133 amino acid residues.Manufactured using all Animal-Free reagents.

Supplier: Peprotech

IL-2 is a powerful immunoregulatory lymphokine produced by T-cells in response to antigenic or mitogenic stimulation.  IL-2/IL-2R signaling is required for T-cell proliferation and other fundamental functions that are essential for the immune response.  IL-2 stimulates growth and differentiation of B-cells, NK cells, lymphokine-activated killer cells, monocytes, macrophages and oligodendrocytes.  Recombinant Rat IL-2 is a 15.3 kDa protein containing 134 amino acid residues. Manufactured using all Animal-Free reagents.

Supplier: Rockland Immunochemical

LC20 is the myosin light chain that may regulate muscle contraction by modulating the ATPase activity of myosin heads (1). LC20 protein binds calcium and is activated by myosin light chain kinase. Two transcript variants encoding different isoforms have been found for LC20 and the deduced 172-amino acid protein is highly conserved, with only 3 differences between the human and chicken proteins. Light chain phosphorylation causes the folded monomeric form of myosin to extend and assemble into filaments. This observation established the involvement of the LC20 in conformational transitions of smooth muscle myosin (2). LC20 Protein is ideal for investigators involved in Signaling Reagents, Protein Substrates, and Cardiovascular Disease research.

Supplier: Adipogen

Molecular biology reagent. beta-Galactosidase activity inducer in several bacteria, by binding and inhibiting the lac repressor. Used in gene cloning together with X-Gal (Prod. No. AG-CC1-0003), in a technique called blue/white screening. Distinguishes between recombinant and non-recombinant plasmids carrying the beta-galactosidase gene. Plant origin, contains no animal-derived contaminants. Stimulates beta-galactosidase in cellular systems in which dioxane would disrupt normal cell function.

Supplier: Peprotech

IGF-BP3 is a 30 kDa, cysteine-rich secreted protein.  It is the major IGF binding protein present in the plasma of human and animals, and it is also found in ?-granules of platelets.  In addition to its ability to modulate the activity of IGF-I and IGF-II, IGF-BP3 exerts inhibitory effects on follicle stimulating hormone (FSH) activity.  Decreased plasma levels of IGF-BP3 often results in dwarfism, whereas elevated levels of IGF-BP3 may lead to acromegaly.  The expression of IGF-BP3 in fibroblasts is stimulated by mitogenic growth factors, such as Bombesin, Vasopressin, PDGF, and EGF.  Recombinant Human IGF-BP3 is a 28.8 kDa protein consisting of 264 amino acid residues.Manufactured using all Animal-Free reagents.

Supplier: AAT Bioquest

SMCC is a non-cleavable and membrane permeable crosslinker with a spacer arm of 8.3 Å. It contains an amine-reactive succinimidyl ester (SE) and a sulfhydryl-reactive maleimide group. NHS esters react with primary amines at pH 7 to 9 to form stable amide bonds. Maleimides react with sulfhydryl groups at pH 6.5 to 7.5 to form stable thioether bonds. The SE group of SMCC is reacted with lysine residues on the carrier protein, converting them to reactive maleimides. SMCC is a reagent that is widely used for generating stable maleimide-activated carrier proteins that can spontaneously react with sulfhydryls. Alternatively these relatively stable maleimide-activated intermediates may be lyophilized and stored for later conjugation to a hapten.

Supplier: Peprotech

SCF is a hematopoietic growth factor that exerts its activity by signaling through the c-Kit receptor. SCF and c-Kit are essential for the survival, proliferation and differentiation of hematopoietic cells committed to the melanocyte and germ cell lineages. Human SCF manifests low activity on murine cells, while murine and rat SCF are fully active on human cells. The human SCF gene encodes for a 273 amino acid transmembrane protein, which contains a 25 amino acid N-terminal signal sequence, a 189 amino acid extracellular domain, a 23 amino acid transmembrane domain, and a 36 amino acid cytoplasmic domain. The secreted soluble form of SCF is generated by proteolytic processing of the membrane anchored precursor. Recombinant Human SCF is an 18.4 kDa polypeptide containing 165 amino acid residues, which corresponds to the sequence of the secreted soluble form of SCF. Manufactured using all Animal-Free reagents.

Supplier: Adipogen

DAF-2 is highly sensitive reagent for NO detection and determination of nitric oxide synthase activity. DAF-2, however, remains essentially nonfluorescent until it reacts with the nitrosonium cation (produced by spontaneous oxidation of nitric oxide) to form a fluorescent heterocycle, which becomes trapped in the cell's cytoplasm. This sensitive fluorescent probe has been used to identify individual nitric oxide-producing neurons in brain slices, in mitochondria and in living plant cells. Spectral data: lambdaex 505nm; lambdaem 518nm in 0.1M Tris pH8.0.

Supplier: Bioss

Changes in the serine/threonine phosphorylation state of a protein in response to various external stimuli can have profound effects on cellular signal transduction, apoptosis and carcinogenesis. The reagents, including phosphorylated protein/peptides, antibodies against the phosphospecific amino acid, are important tools to explore the activation of serine, threonine or tyrosine containing proteins. An aberrant protein phosphorylation is a hallmark of human disease, and the enzymes, particularly protein kinases, which control protein phosphorylation are recognized as a major new drug target family.

Supplier: Peprotech

SCF is a hematopoietic growth factor that exerts its activity by signaling through the c-Kit receptor. SCF and c-Kit are essential for the survival, proliferation and differentiation of hematopoietic cells committed to the melanocyte and germ cell lineages. Human SCF manifests low activity on murine cells, while murine and rat SCF are fully active on human cells. The human SCF gene encodes for a 273 amino acid transmembrane protein, which contains a 25 amino acid N-terminal signal sequence, a 189 amino acid extracellular domain, a 23 amino acid transmembrane domain, and a 36 amino acid cytoplasmic domain. The secreted soluble form of SCF is generated by proteolytic processing of the membrane anchored precursor. Recombinant Murine SCF is an 18.3 kDa polypeptide containing 165 amino acid residues, which corresponds to the sequence of the secreted soluble form of SCF. Manufactured using all Animal-Free reagents.

Supplier: Peprotech

SCF is a hematopoietic growth factor that exerts its activity by signaling through the c-Kit receptor. SCF and c-Kit are essential for the survival, proliferation and differentiation of hematopoietic cells committed to the melanocyte and germ cell lineages. Human SCF manifests low activity on murine cells, while murine and rat SCF are fully active on human cells. The human SCF gene encodes for a 273 amino acid transmembrane protein, which contains a 25 amino acid N-terminal signal sequence, a 189 amino acid extracellular domain, a 23 amino acid transmembrane domain, and a 36 amino acid cytoplasmic domain. The secreted soluble form of SCF is generated by proteolytic processing of the membrane anchored precursor. Recombinant Murine SCF is an 18.3 kDa polypeptide containing 165 amino acid residues, which corresponds to the sequence of the secreted soluble form of SCF. Manufactured using all Animal-Free reagents.