155219 Results for: "slides-and-cover-glasses&amp"

Supplier: IBI Scientific

The Total RNA Mini and Maxi Kits for Plants provide a simple and fast method to isolate total RNA from plant tissue and cells

Supplier: MP Biomedicals

Storage: Store at room temperature (15-30 °C)
L-Lysine monohydrochloride is widely used as nutritional supplements in food and beverage industries. It can also be used in animal feed as source of L-Lysine. L-Lysine Monohydrochloride can be used in a wide variety of industries including: food production, beverage, pharmaceutical, agriculture/animal feed, and various other industries.
L-Lysine monohydrochloride is a key amino acid in calcium absorption.

Supplier: MP Biomedicals

Methotrexate is a cell cycle arresting agent with varying effects. Methotrexate has been reported to arrest the cell cycle in late G1/S thus leading to the inhibition of the synthesis of DNA, RNA, thymidylates, and proteins. The main mechanism of action is reported to involve the inhibition of enzymes involved in purine metabolism which leads to the accumulation of adenosine or the suppression of intercellular adhesion molecule expression by T cells. Additionally, this compound has been observed to inhibit DHFR.
Methotrexate is used for chemotherapy either alone or in combination with other agents. It is effective for the treatment of a number of cancers including: breast, head and neck, leukemia, lymphoma, lung, osteosarcoma, bladder, and trophoblastic neoplasms. It is also used in treatment of autoimmune diseases, ectopic pregnancy, and for the induction of medical abortions. It is used to inhibit dihydrofolate reductase in DHFR-based protein expression systems. Also effective in treatment of pyrimethamine-resistant Plasmodium vivax malaria parasites.
Potent inhibitor of dihydrofolate reductase and agent for antitumor studies. Use to inhibit dihydrofolate reductase in DHFR-based protein expression systems. Also shows immunosuppressive effects in, e.g., rheumatoid arthritis.
Methotrexate is an allosteric inhibititor of dihydrofolate reductase (DHFR), the enzyme that catalyzes the conversion of dihydrofolate to tetrahydrofolate. Since tetrahydrolfolate is required for purine and pyrimidine synthesis, methotrexate treatment results in the inhibition of DNA and RNA synthesis.

Supplier: MP Biomedicals

A vitamin/enzyme cofactor found in milk, eggs, malted barley, liver, kidney, heart, leafy vegetables. Richest natural source is yeast. Occurs in the free form only in the retina of the eye, in whey, and in urine; bioactive forms occurring in tissues and cells are riboflavin monophosphate and flavine-adenine dinucleotide. Used as a photoinitiator for polymerization of polyacrylamide gels. It forms free radicals in aqueous solution in the presence of light. Riboflavin photodecomposes to leucoflavin. No free radicals are formed in the absence of oxygen but traces of oxygen allows for leucoflavin to reoxidize with free-radical generation. The catalysts TEMED or DMAPN are commonly added to speed up the free radical formation. The free radicals will cause acrylamide and bis-acrylamide to polymerize to form a gel matrix which can be used for electrophoresis. Riboflavin is commonly used in the stacking gel for non-denaturing polyacrylamide electrophoresis because native proteins can be senstive to persulfate ions from ammonium persulfate. Another advantage of riboflavin over ammonium persulfate is that it will not start polymerization until the gel is illuminated. Riboflavin causes less denaturing than other initiators. Gel strength can be improved when used with PTO (Pyrithione). Soluble in 0.1 M Sodium Hydroxide (50 mg/ml - clear, yellowish-orange solution); only slightly soluble in water.

Supplier: IBI Scientific

The Large DNA Fragment Extraction Kits are designed to recover large DNA fragments (>8Kb) from an agarose gel

Supplier: MP Biomedicals

Triton® X-100 is an alkylaryl polyether alcohol. It is a nonionic surfactant prepared by the reaction of octylphenol with ethylene oxide. The number ("-100") relates only indirectly to the number of ethylene oxide units in the structure.
Triton X-100 is a non-ionic surfactant and emulsifier which is often used in biochemical applications to solubilize proteins. Triton X-100 has no antimicrobial properties. It is considered as a comparatively mild detergent, non-denaturing, and is reported in numerous references as a routinely added reagent. It does absorb in the ultraviolet region of the spectrum, however, so can interfere with protein quantitation.
The principal uses of Triton® X-100 is in industrial and household detergent applications and in emulsifying agents. It is employed in almost every type of liquid, paste, and powdered cleaning compound, ranging from heavy-duty industrial products to gentle detergents for fine fabrics. It is also important ingredient of primary emulsifier mixtures used in the manufacture of emulsion polymers, stabilizers in latex polymers, and emulsifiers for agricultural emulsion concentrates, and wettable powders.
Widely used non-ionic surfactant for recovery of membrane components under mild non-denaturing conditions.
Store at Room Temperature(15-30 °C)

Supplier: Aladdin Scientific

Aclidinium Bromide (LAS 34273, LAS-W 330) inhibits human muscarinicAChRM1, M2, M3, M4 and M5 withKiof 0.1 nM, 0.14 nM, 0.14 nM, 0.21 nM and 0.16 nM, respectively. TargetsM1 mAChR ; M2 mAChR ; M3 mAChR ; M5 mAChR ; M4 mAChR 0.1 nM(Ki); 0.14 nM(Ki); 0.14 nM(Ki); 0.16 nM(Ki); 0.21 nM(Ki)In vitro[3 H]Aclidinium binds to a homogeneous receptor of M2 with Kd of 0.34 nM and Bmax of 3.13 pmol/mg, and binds to M3 with Kd of 0.34 nM and Bmax of 3.13 pmol/mg. Aclidinium (< 100 nM) dose-dependently inhibits carbachol-induced contractions in isolated guinea pig trachea. Aclidinium shows an onset of action with t1/2 of 6.8 min, tmax of 35.9 min in isolated guinea pig trachea. Aclidinium is hydrolysed in plasma samples from all species studied, with apparent half-lives at 37℃ of 11.7 min, 38.3 min, 1.8 min and 2.4 min in rat, guinea pig, dog and human plasma, respectively. Aclidinium (0.1 μM) inhibits carbachol and TGF-β1 induced upregulation of collagen type I and α-SMA mRNA and protein expression in human bronchial fibroblasts. Aclidinium (0.1 μM) inhibits TGF-β1 induced upregulation of ChAT expression in human bronchial fibroblasts.

Supplier: IBI Scientific

The IBI high throughput 96-Well PCR Clean-Up Kit is designed to recover or concentrate DNA fragments from PCR or other enzymatic reactions using an efficient 96-well binding plate system.

Supplier: Ambeed

D-(+)-Camphor ≥98%

Supplier: Omega Bio-Tek

The Mag-Bind® Bacterial DNA 96 Kit allows rapid and reliable isolation of high-quality genomic DNA (gDNA) from a wide variety of bacterial species

Supplier: IBI Scientific

The Total RNA Mini and Maxi Kits are specially designed for purification of total RNA from fresh whole human blood and cultured cells

Supplier: IBI Scientific

The Total RNA Mini and Maxi Tissue Kits are specially designed for purification of total RNA from a variety of animal tissues or cells

Supplier: IBI Scientific

IBI's Viral Nucleic Acid Extraction Kit was designed specifically for purification of viral DNA/RNA from cell-free samples; such as serum, plasma, body fluids, and the supernatant of viral infected cell cultures

Supplier: Electron Microscopy Sciences

Citifluor™ mountant media containing antifadents solutions reduce the photo-bleaching or fading of the fluorescence of dyes used for labeling biological species.

Supplier: Aladdin Scientific

CFI-400945 CFI-400945 is an orally active, potent and selective polo-like kinase 4(PLK4) inhibitor with Ki value of 0.26 nM. TargetsPLK4 (Cell-free assay); TrkA (Cell-free assay); TrkB (Cell-free assay); Tie-2 (Cell-free assay); Aurora B (Cell-free assay) 16539,2.8 nM; 6 nIn vitroCFI-400945 is a potent, orally active antitumor agent with the IC50 and Ki values of 2.8 and 0.26 nM, respectively. No significant inhibition against PLKs 1 to 3 is observed for CFI-400945 at a concentration of 50 μM. CFI-400945 can attenuate the growth of breast cell line, as well as other tumor cell lines significantly. CFI-400945 selectively inhibits PLK4 in cells, but also has certain activity against AURKB, TRKA, TRKB and Tie2/TEK (only 10 kinases showed more than 50% inhibition among 290 kinases). The cytokinesis failure and subsequent polyploidization by CFI-400945 treatment indicate that the cell death in cancer cell lines is at least partly achieved through inhibition of AURKB. No significant inhibition is observed for PLKs 1 to 3 (IC50 s > 50 μM) probably due to the most divergent structure of PLK4 compared to other polo-like kinases 1 to 3. Cancer cells treated with CFI-400945 exhibit effects consistent with PLK4 kinase inhibition, including dysregulated centriole duplication, mitotic defects, and cell death.

Supplier: MP Biomedicals

Citric acid is a key metabolic intermediate. Citrate is the starting point of the tricarboxylic acid cycle. Its concentration also coordinates several other metabolic pathways. Citric acid can form complexes with various cations, particularly with iron and calcium. In animals, citric acid improves the utilization of nutritional calcium. Citric acid is produced commercially by fermentation of carbohydrates derived from corn starch and from beet molasses.
Citric Acid, Trisodium Salt, Dihydrate is used as a substrate for citrate lyase, a buffer component; an anticoagulant. For anticoagulation use it is typically used at a concentration of approximately 0.129 M (i.e. for 4.5 mL blood use 16.0 mg sodium citrate and 2.1 mg citric acid).
To make a sodium citrate buffer use equimolar concentrations (typically approximately 0.05 M concentration) of citric acid, free acid and sodium citrate. Add equal volumes of each solution and titrate to the desired pH.
Room Temperature

Supplier: New England Biolabs (NEB)

The Monarch® HMW DNA extraction kit for tissue provides a rapid and reliable process for extracting high molecular weight (HMW), intact genomic DNA from various tissues and bacteria, as well as other sample types including yeast, insect, and amphibian.

Supplier: IBI Scientific

IBI's gMax MINI Genomic DNA Extraction/Purification Kit provides a fast and efficient method for purifying total DNA (including genomic, mitochondrial and viral DNA) from whole blood (fresh/frozen), tissue, buccal swab, and amniotic fluid

Supplier: IBI Scientific

IBI's rYeast Mini Total RNA Kits have been designed for purifying total RNA from yeast and a variety of other fungi

Supplier: Ambeed

L(+)-Potassium sodium tartrate tetrahydrate 95%

Supplier: MP Biomedicals

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. This product exhibits metal binding properties. 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.
Folic acid (Vitamin B9 and folate) is essential to numerous bodily functions. The human body needs folate to synthesize DNA, repair DNA, and methylate DNA as well as to act as a cofactor in certain biological reactions. It is especially important in aiding rapid cell division and growth, such as in infancy and pregnancy.
Folic acid (FA) and dihydrofolic acid (FAH2) are substrates of dihydrofolate reductase(s) which reduce them to tetrahydrofolate (THF), which in turn supports ‘one carbon’ transfer. Tetrahydrofolates are required for de novo synthesis of purines, thymidylic acid and various amino acids and for post-translational methylation (epigenetics).
Very slightly soluble in cold water (0.0016 mg/mL at 25 °C), soluble to about 1% in boiling water. Slightly soluble in methanol, appreciably less soluble in ethanol and butanol. Insoluble in acetone, chloroform, ether, benzene. Relatively soluble in acetic acid, phenol, pyridine, solutions of alkali hydroxides and carbonates. Soluble in hot dilute HCl and H2SO4.

Supplier: Aladdin Scientific

Bimiralisib (PQR309) is a novel brain-penetrant dualPI3 K/mTORinhibitor within vitro and in vivo antilymphoma activity. It displays excellent selectivity versus PI3 K-related lipid kinases, protein kinases and unrelated targets. TargetsPI3 Kα (Cell-free assay); PI3 Kβ (Cell-free assay); mTOR (Cell-free assay); PI3 Kγ (Cell-free assay); PI3 Kδ (Cell-free assay) 1.5 nM(Kd); 11 nM(Kd); 12 nM(Kd); 25 nM(Kd); 25 nM(Kd)in vitro PQR309 showsin vitro activity with a median IC50 value of 233 nmol/L (95% CI, 174 to 324 nmol/L) in most of the tesed lymphoma cell lines (increasing doses, 72 hours). The arrest in proliferation is mainly due to cell cycle arrest with a block in G1 rather than to apoptosis, limited to only 2/7 cell lines. PQR309 is more active in B-cell lymphoma cell lines (DLBCL, MCL, CLL, and SMZL) than in the T-cell derived ALCL. PQR309 inhibits PI3 K/mTOR signaling in lymphoma cell lines. It hasin vitro and in vivo antilymphoma activity as single agent and in combination.\xa0 in vivo PQR309 is orally available, crosses the blood−brain barrier, and displayed favorable pharmacokinetic parameters in mice, rats, and dogs.

Supplier: MP Biomedicals

Storage: -20°C, desiccate
This is an ultrapure NAD, chromatographically purified to remove trace inhibitors.
β-NAD, a pyridine nucleotide and biologically active form of nicotinic acid, is a coenzyme necessary for the catalytic reaction of certain enzymes. It occurs in living cells primarily in the oxidized state. Serves as a coenzyme of the dehydrogenases, especially in the dehydrogenation of primary and secondary alcohols. NAD usually acts as a hydrogen acceptor, forming NADH which then serves as a hydrogen donor in the respiratory chain.
Many metabolites and enzymes of biological interest are present in tissues at low concentrations. With the use of β-NAD as a catalyst intermediate and several enzymes in a multistep system, known as enzyme cycling, much greater sensitivity for detection of these components is achieved. The reduced form, β-NADH, is fluorescent whereas β-NAD is not. This difference in fluorescence provides a sensitive fluorescent measurement of the oxidized or reduced pyridine nucleotides at concentrations down to 10-7 M.
Electron acceptor. β-NAD is a carrier for hydride ion, forming b-NADH. Hydride ion is enzymatically removed from a substrate molecule by the action of dehydrogenases such as malic dehydrogenase and lactic dehydrogenase. Such enzymes catalyze the reversible transfer of a hydride ion from malate or lactate to b-NAD to form the reduced product, b-NADH. Unlike b-NAD which has no absorbance at 340 nm, b-NADH absorbs at 340 nm (EmM = 6.22). The increase in absorbance at 340 nm with the formation of b-NADH is the basis for measurement of activity of many enzymes.

Supplier: Zymo Research

The YeaStar™ RNA Kit provides all the necessary reagents for RNA isolation from a broad spectrum of fungi including: Aspergillus fumigatus, Aspergillus nidulans, Aspergillus nivens var. aureus, Candida albicans, Pichia pastoris, Saccharomyces cerevisiae, Schizosaccharomyces pombe.

Supplier: IBI Scientific

IBI offers replacement plasmid columns and collection tubes available in convenient sizes

Supplier: IBI Scientific

Kits provide a fast and economical method for the purification of total DNA (including genomic, mitochondrial, and chloroplast DNA) from plant tissue and cells

Supplier: MP Biomedicals

Sodium phosphate is a reagent with very high buffering capacity that is widely used in molecular biology, biochemistry, and chromatography. Sodium phosphate occurs in several forms: monobasic (NaH2PO4), dibasic (Na2HPO4), and tribasic (Na3PO4). Most neutral sodium phosphate buffer solutions consist of mixtures of the monobasic and dibasic forms to varying degrees, depending on the desired pH.
Sodium phosphate monobasic, Monohydrate is used as sequestrant, emulsifier and buffer in foods; as mordant in dyeing; for weighting silk in tanning; in manufacture of enamels, ceramics, detergents, boiler compounds; as fireproofing agent; in soldering and brazing instead of borax; as reagent and buffer in analytical chemistry; cathartic; laxative. A table for preparation of 0.1 M sodium phosphate buffer at 25 °C using various proportions of sodium phosphate monobasic and sodium phosphate dibasic has been published. A study of the effect of freeze-thaw storage cycles on proteins in sodium phosphate and potassium phosphate buffer solutions has been reported. The effect of 5 mM sodium phosphate on the efficacy of electrospray ionization (ESI) ion mobility spectrometry (IMS) analysis has been evaluated. A protocol for the purification of pyrogen-free mouse IgG1 monoclonal antibodies which uses 10 mM sodium phosphate (pH 7.4) has been published. An ion-pairing HPLC method for the analysis of 5-aminosalicylic acid has been reported. A TLC method for separation of nucleotide sugars in the study of glycosyltransferase activity has been published.
Room Temperature, Desiccate

Supplier: Aladdin Scientific

Atuveciclib (BAY-1143572) is potent and highly selectivePTEFb/CDK9inhibitor withIC50values of 13 nM for CDK9/CycT and the ratio of IC50 values for CDK2/CDK9 is about 100. Outside the CDK family, It inhibits GSK3 kinase with IC50 values of 45 and 87 nM for GSK3α and GSK3β respectively.TargetsCDK9 (Cell-free assay); GSK-3α ; GSK3β 13 nM; 45 nM; 87 nM in vitro BAY\u20051143572 is a potent and highly selective CDK9 inhibitor (IC50 CDK9/CycT1: 13\u2005 nM, ratio of IC50 values CDK2/CDK9: 100). Outside the CDK family, submicromolar inhibitory activity was only recorded against GSK3 kinase (IC50 GSK3α: 45\u2005 nM, GSK3β: 87\u2005 nM). BAY\u20051143572 demonstrates antiproliferative activity against HeLa cells (IC50 = 920\u2005 nM) and MOLM-13 cells (IC50 = 310\u2005 nM). It also demonstrates improved Caco-2 permeability and a decreased efflux ratio (PappA→B: 35\u2005 nm/s, ER: 6) relative to lead compound BAY‐958 (PappA→B: 22\u2005 nm/s, ER: 15). in vivo In an in\u2005vivo pharmacokinetic study in rats, BAY\u20051143572 showed low blood clearance (CLb 1.1\u2005L/h/kg). The volumes of distribution (Vss) of BAY\u20051143572 is 1.0\u2005L/kg. BAY\u20051143572 shows significantly improved oral bioavailability of 54\u2009%. The blood/plasma ratios is about 1. It does not show significant inhibition of cytochrome P450 activity, with IC50 values >20\u2005 μM. The administration of BAY 1143572 in immunocompromized NOD/Shi-scid/IL-2Rγ (NOG) mice xenografted with patient-derived ATL cells greatly reduced the infiltration of ATL cells into organs, such as liver and bone marrow. Decreased human soluble IL2R levels in serum were also observed, which indicated a reduction of ATL tumor burden.

Supplier: Ambeed

L(+)-Cysteine hydrochloride monohydrate 98%

Supplier: G-Biosciences

G-Biosciences' GeneCAPSULE™ is an electro-elution tool for rapid, nearly 90% recovery of PCR products, DNA fragments and proteins from agarose and polyacrylamide gels