1639 Results for: "Cell Culture Reagents"

Supplier: MP Biomedicals

Thymidine is a nucleoside composed of deoxyribose (a pentose sugar) joined to the pyrimidine base thymine.Deoxythymidine can be phosphorylated with one, two or three phosphoric acid groups, creating respectively dTMP, dTDP or dTTP (deoxythymidine mono- di- or triphosphate.It exists in solid form as small white crystals or white crystalline powder.The stability of deoxythymidine under standard temperature and pressure (STP) is very high.Thymidine is listed as a chemical teratogen.
Mainly used in forming hybrid cell lines wherein cells are incubated in HAT medium(hypoxanthine-aminopterin-thymidine medium) to give rise to monoclonal antibodies. Use in HT and HAT cocktails for hybridoma fusion, selection and cloning.
Physical Appearance: White Powder
Optical Rotation: (c=1, water) +17.5 - +19.5°
UV/Visible Absorbance: λmax (0.1N HCl) 266 - 268 nm
Solubility: Soluble in water, methanol, hot alcohol, hot acetone, hot ethyl acetate pyridine, glacial acetic acid and HCl (20 mg/mL-clear, colorless solution); sparingly soluble in hot chloroform

Supplier: MP Biomedicals

Choline chloride is an organic compound and a quaternary ammonium salt. It is a weak acid. Choline chloride is the salt of the naturally occurring choline, the pre-stage of the neurotransmitter acetylcholine, which is important for mnemonic and thought-processes. Choline occurs naturally in fungi, hop and kingcups and as integral part of lecithin. Choline chloride is a common food additive in animal husbandry
The enzymatic activities of butyrylcholinesterase (BChE) and paraoxonase 1 (PON1), two serum enzymes synthesized by the liver and related with inflammation, were decreased in a sepsis animal model injected with LPS. Choline chloride administered intravenously at 20 mg/kg body weight prevents the LPS-mediated decreases in the activities of these two enzymes.
Choline chloride is used as a source of methyl groups for methyl-transfer reactions.
Physical Appearance: Hard, White Crystalline Powder
pH: Neutral to Litmus
Vapor Pressure: 10 hPa at 20 °C (Lit.)
Partition Coefficient: n octanol/water (logKow): -3.77 at 25 °C (lit.)
Solubility: Soluble in water: (10% aq soln) Clear, Colorless Solution

Supplier: MP Biomedicals

Dexamethasone is an anti-inflammatory glucocorticoid that induces the production of phospholipase A2 inhibitory protein (lipocortin). It also inhibits induction of nitric oxide synthase (IC50=5 nM). Dexamethasone has been shown to cause reduction in cyclin A and Cdk2 activity, inhibition of G1/S transition in osteoblasts and inhibition of phosphorylation of Rb protein. Dexamethasone has been observed to induce apoptosis in human thymocytes and eosinophils but to inhibit apoptosis in neutrophils.

Supplier: Cell Systems

Optimize the plating, passaging and freezing of cell cultures with Cell Systems Reagents. Growth supplements and antibiotic products are also available to ensure each experiment is initiated in an optimal environment.

Supplier: MP Biomedicals

Trehalose Dihydrate is an osmolyte, a chemical chaperone. It contains many properties that allow it to stabilize partially unfolded protein molecules and inhibit protein aggregation. It include a low chemical reactivity, high glass transition temperature, existence of numerous polymorphs, nonreducing nature, and high affinity for water molecules. Additionally, Trehalose has been noted to bind to expanded polyglutamines and stabilize partially unfolded polyglutamine-containing proteins.

Supplier: INDIGO BIOSCIENCES INC MS

Eliminate weeks of cell culture while achieving superior sensitivity with reproducible results from this all-inclusive cell-based luciferase reporter assay. INDIGO’s Human TR Reporter Assays Panel All-inclusive Cell-Based Luciferase Reporter Assay Kit; this kit includes TRa and TRb Reporter Cells, two optimized media for use during cell culture and (optionally) in diluting the user’s test samples, a reference agonist, Luciferase Detection Reagent, a cell culture-ready assay plate, and a detailed protocol.

Supplier: MP Biomedicals

Storage: +4 °C
Pyruvic acid is an intermediate in sugar metabolism and in enzymatic carbohydrate degradation (alcoholic fermentation) where it is converted to acetaldehyde and CO2 by carboxylase. In muscle, pyruvic acid (derived from glycogen) is reduced to lactic acid during exertion, which is reoxidized and partially retransformed to glycogen during rest. It improves coliform recovery when present in culture medium. It is involved in a metabolic regulatory pathway activated by mitochondrial oxidants. Pyruvate is involved in respiratory regulation in plants by interacting with alternative oxidase at a conserved cysteine residue. It may help prevent hydrogen peroxide mediated cell death.
Sodium pyruvate is utilized as a component in culture broth and media. Sodium pyruvate is used in Wallen fermentation medium to enhance the conversion of oleic acid to 10-ketostearic acid by Bacillus sphaericus. Sodium pyruvate has also been used to establish stably transfected human B cell lines.
Sodium Pyruvate has shown antioxidant properties and protective effects against oxygen radicals. Pyruvate is produced as part of glycolysis and is an intermediate in many metabolic pathways. It can be converted into acetyl CoA and enter the TCA Cycle.

Supplier: MP Biomedicals

β-Estradiol is a potent mammalian estrogenic hormone produced by the ovary. Triggers the production of gonadotropins leading to ovulation.

Supplier: MP Biomedicals

Gentamicin is an aminoglycoside antibiotic complex produced by fermentation of Micromonospora purpurea or M. echinospora. It is a mixture of 3 major components designated as C1, C1a, and C2. Gentamicin is used as the sulfate salt. Each component consists of five basic nitrogens and requires five equivalents of sulfuric acid per mole of gentamicin base.

Supplier: MP Biomedicals

Hydrocortisone, a primary glucocorticoid secreted by the adrenal cortex. It has three times the anti-inflammatory potency of corticosterone but much lower Na+ retention potency. Hydrocortisone, known more formally as cortisone (INN, USAN, BAN), is a steroid hormone, produced by the zona fasciculata of the adrenal gland. It is released in response to stress and a low level of blood glucocorticoids.

Supplier: MP Biomedicals

Storage: Store at Room Temperature (15-30 °C.)
L-histidine is one of the three amino acids with a basic side chain, and is very hydrophilic in character. It contains an imidazole group in the side chain.
L-Histidine has been used to study cultures of the human T-lymphoblastic leukemia cell line MOLT-4 to study modulation of apoptosis. It is used in treatment of rheumatoid arthritis, allergic diseases, ulcers & anemia.
Precursor of histamine by action of histidine decarboxylase.

Supplier: Corning

L-glutamine is an essential amino acid and a key component of culture media, serving as a major energy source for propagating cells. It is very stable as a dry powder and as a frozen solution but degrades rapidly in liquid media or stock solutions, producing toxic compounds. Optimal cell performance usually requires supplementation of the media with L-glutamine prior to use. This formulation is prepared in cell culture grade water.

Supplier: Corning

L-glutamine is an essential amino acid and a key component of culture media, serving as a major energy source for propagating cells. It is very stable as a dry powder and as a frozen solution but degrades rapidly in liquid media or stock solutions, producing toxic compounds. Optimal cell performance usually requires supplementation of the media with L-glutamine prior to use. This formulation is prepared in cell culture grade water.

Supplier: INDIGO BIOSCIENCES INC MS

Eliminate weeks of cell culture while achieving superior sensitivity with reproducible results from this all-inclusive cell-based luciferase reporter assay. INDIGO’s Human ER Reporter Assays Panel All-inclusive Cell-Based Luciferase Reporter Assay Kit includes reporter cells for each ER, optimized cell culture medium, a medium for diluting test compounds, 17-β-estradiol control agonist, stable-glow luciferase detection reagent, detailed protocol, protocol quick guide, and a cell culture-ready assay plate in strip-well format.

Supplier: INDIGO BIOSCIENCES INC MS

Eliminate weeks of cell culture while achieving superior sensitivity with reproducible results from this all-inclusive cell-based luciferase reporter assay. INDIGO’s Human LXR Reporter Assays Panel All-inclusive Cell-Based Luciferase Reporter Assay Kit includes reporter cells for each LXR, optimized growth media, media for diluting test compounds, a control agonist for each LXR, luciferase detection reagent, a cell culture-ready assay plate in strip-well format.

Supplier: MP Biomedicals

Storage: Store at Room Temperature (15-30 °C). Store Desiccated.
L-Asparagine is used in cell culture media and is a component of MEM non-essential amino acids solution. L-Asparagine has been shown to enhance ornithine decarboxylase activity in cultured human colon adenocarcinoma Caco-2 cells and in cultured IEC-6 intestinal epithelial cells. Spore germination in Bacillus subtilis has been increased in the presence of L-asparagine. An isoxazoline RGD mimic platelet GPIIb/IIIa antagonist has been prepared by chiral synthesis with L-asparagine as a starting material. L-Asparagine has been utilized in the synthesis of 4-azalysine building blocks for application to combinatorial chemistry.

Supplier: MP Biomedicals

Storage: Store at Room Temperature (15-30 °C). Protect from light.
Folic acid, also known as folate, is a B vitamin that can be found in a variety of fruits and vegetables. It can also be chemically synthesized. Folate, a watersoluble vitamin, helps the body form red blood cells and aids in the formation of genetic material within every body cell. Folic Acid is a hematopoietic vitamin present, free or combined with one or more additional molecules of L- (+)-glutamic acid, in liver, kidney, mushrooms, spinach, yeast, green leaves, and grasses.
A nutritional delivery form of folate. Folic acid and its derivatives are essential mediators of one-carbon metabolism within cells.

Supplier: MP Biomedicals

Storage: Room Temperature, desiccate, protect from light
p-Aminobenzoic acid is an aminobenzoic acid isomer that combines with pteridine and Glutamic acid to form folic acid.
p-Aminobenzoic acid is part of several cell culture media as vitamin H1. In industrial field, it is a starting material in the manufacture of target esters, salts, folic acid, azo dyes and other organic compounds. It is used as an UV-blocking ingredient in sun tan cosmetics. It is used in medical field for preparing local anesthetic and ointments.

Supplier: Corning

Cells grown in traditional media supplemented with L-glutamine are susceptible to toxicity

Supplier: Corning

IPTG (isopropylthiogalactoside) is an inducer of the lac operon in bacteria, which is frequently used in cloning as a component of a recombinant plasmid.

Supplier: MP Biomedicals

Calcium Chloride is a salt of calcium and chloride. It behaves as a typical ionic halide, and is solid at room temperature.
Calcium chloride is a commonly used reagent in biochemistry. It plays important roles in many biological processes, including signal transduction, muscle contraction, and maintenance of cell membrane and cell wall stability. Calcium chloride is used in the preparation and transformation of competent E. coli and in the transfection of eukaryotic cells with either plasmid DNA or high molecular weight genomic DNA. It has been used in the stabilization and two dimensional crystallization of the NADH-ubiquinone oxidoreductase (complex I) from Escherichia coli. It is also used as a dessicant, coagulant in rubber manufacturing and as an accelerator in the concrete industry.

Supplier: Corning

X-Gal (5-bromo-4-chloro-3-indolyl-b-D-galactopyranoside) is a substrate of b-galactosidase, a gene product of the lac operon in E. coli.

Supplier: Corning

Animal free formulation

Supplier: MP Biomedicals

Storage: Room Temperature, desiccate, store under nitrogen.
Ferrous sulfate heptahydrate is a reagent used in the manufacturing of iron compounds, in electroplating baths, aluminium etching, process engraving and lithography, and in redox polymerisation. It is used as a reducing agent in chemical processes, leather dyes and writing inks. Also, it is a component of weed killers, wood preservatives and water treatment processes. Used In prevention of chlorosis in plants and therapeutically as hematinic. In veterinary medicine, it is used as an astringent to combat iron deficiency. Ferrous sulfate heptahydrate is used in the determination of phosphorus as per the method of Taussky and Shorr. Ferrous sulfate heptahydrate is used in cell culture applications generally bound to transferrin, citrate or other iron transport molecules.

Supplier: MP Biomedicals

HEPES is a zwitterionic organic chemical buffering agent; one of the twelve Good's buffers. HEPES is widely used in cell culture, largely because it is better at maintaining physiological pH despite changes in carbon dioxide concentration (produced by cellular respiration) when compared to bicarbonate buffers, which are also commonly used in cell culture. Its dissociation decreases as the temperature decreases which makes it a more effective buffering agent for maintaining enzyme structure and function at low temperatures.

Supplier: MP Biomedicals

Storage: Store at Room Temperature (15 - 30 °C)
Glycerol is used both in sample preparation and gel formation for polyacrylamide gel electrophoresis. Glycerol (5-10%) increases the density of a sample so that the sample will layer at the bottom of a gel’s sample well. Glycerol is also used to aid in casting gradient gels and as a protein stabilizer and storage buffer component. Glycerol is used in the concentration and storage of enzymes. Also prevents back-diffusion and protein samples into the buffer. Ideal for use as a cryoprotectant.

Supplier: MP Biomedicals

N-Acetyl-L-cysteine is an acetylated amino acid with antioxidant and mucolytic properties for isolation of mycobacteria from sputum. As a mucolytic agent, N-Acetyl-L-cysteine serves to dissipate disulfide bonds across mucoproteins, loosening and clearing the viscosity of sputum.
N-Acetyl-L-cysteine acts as a free-radical scavenger and inhibits the production of reactive oxygen species which can damage cellular structures. It is critical for the production of Glutathione, a key antioxidant enzyme in the body. It has also been shown to induce apoptosis in vascular smooth muscle cells, indicating that these cells respond differently to changes in reduction-oxidation state than other tissues that are normally protected by the presence of antioxidants.
Antioxidant and mucolytic agent. Increases cellular pools of free radical scavengers. Reported to prevent apoptosis in neuronal cells but induce apoptosis in smooth muscle cells. Inhibits HIV replication. May serve as a substrate for microsomal glutathione transferase.

Supplier: MP Biomedicals

Storage: Room Temperature, desiccate
Potassium phosphate is a reagent with high buffering capacity. It occurs in several forms: monobasic, dibasic and tribasic (K3PO4). Most pH neutral potassium phosphate buffer solutions consist of mixtures of the monobasic and dibasic forms to varying degrees, depending on the desired pH.
Potassium phosphate monobasic is typically used as a component for a wide variety of media used in the culture of microorganisms. It is widely used in molecular biology, biochemistry, and chromatography. It is a component in phosphate buffered saline (PBS). In addition to helping maintain pH, it supplies essential phosphate.

Supplier: MP Biomedicals

Arachidonic Acid is an essential fatty acid. Occurs in liver, brain, glandular organs, and depot fats of animals, in small amounts in human depot fats, and is a constituent of animal phosphatides.
Arachidonic Acid is a precursor in the biosynthesis of prostaglandins, thromboxanes, and leukotrienes. Arachidonic acid plays a key role in cellular regulation and is controlled through multiple interconnected pathways.
Arachidonic acid (AA) is an unsaturated ω6 fatty acid constituent of the phospholipids of cell membranes. Phospholipase A2 releases AA from the membrane phospholipids in response to inflammation. AA is subsequently metabolized to prostaglandins and thromboxanes by at least two cyclooxygenase (COX) isoforms, to leukotrienes and lipoxins by lipoxygenases, and to epoxyeicosatrienoic acids via cytochrome p450-catalyzed metabolism. AA and its metabolites play important roles in a variety of biological processes, including signal transduction, smooth muscle contraction, chemotaxis, cell proliferation and differentiation, and apoptosis. AA has been demonstrated to bind to the a subunit of G protein and inhibit the activity of Ras GTPase-activating proteins (GAPs). Cellular uptake of AA is energy dependent and involves protein-facilitated transport across the plasma membrane.
If ethanol is undesirable, arachidonic acid may be dissolved in acetonitrile, DMF, or DMSO. Simply evaporate the ethanol under a gentle stream of nitrogen (be certain not to evaporate the material to dryness) and redissolve the arachidonic acid in the solvent of choice.Just prior to use, make dilutions of the stock solution into aqueous buffer or isotonic saline to bring the arachidonic acid to the desired concentration. Ensure that the residual amount of organic solvent is insignificant, since organic solvents may have physiologic effects at low concentrations. A control using the solvent in the absence of the prostaglandin will address this potential variable. We do not recommend storing the aqueous solution for more than one day. It is difficult to obtain aqueous solutions of arachidonic acid directly. However, an organic solvent free solution of arachidonic acid can be prepared using concentrated basic buffers (pH > 8.0 and ionic strength not less than 0.1 M). Add 400 μL of cold buffer (0 °C) per mg of arachidonic acid and agitate vigorously and/or ultrasonicate.

Supplier: MP Biomedicals

Mitomycin C is an inhibitor of DNA synthesis, nuclear division and cancer cells. Antibacterial to gram positive, gram negative and acid-fast bacilli. It decomposes DNA in cancer cells by forming a complex with DNA and inhibits division of cancer cells by interfering with the biosynthesis of DNA.