97383 Results for: "Tetramethylammonium+hydrogen+sulphate&pageNo=25"

Supplier: Brand

PP. Eight connected 0,2 ml tubes and domed or flat caps in strips of eight.

Supplier: TRESTON

Middle plate 90-130/150 L=150 1 * 1 items

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: Brand

PP. Eight connected 0,2 ml tubes with attached domed cap strips.

Supplier: TRESTON

Middle plate 90-130/150 L=300 1 * 1 items

Supplier: DWK Life Sciences

Tube screw 100x16mm, GPI 15-415, borosilicate. 1 * 1 items

Supplier: CUSTOM MADE CHEMICALS LAB

STANDARD SOLUTION 54 COMPONENTS 1 * 1 Ampoul

Supplier: Cytiva

The pGEX vectors have an expanded multiple cloning site (MCS) that contains six restriction sites. The expanded MCS facilitates the unidirectional cloning of cDNA inserts obtained from libraries constructed using many available lambda vectors. pGEX-6P-1, pGEX-6P-2, and pGEX-6P-3 each encode the recognition sequence for site-specific cleavage by PreScission Protease between the GST domain and the multiple cloning site. pGEX-4T-1, pGEX-4T-2, and pGEX-4T-3 are derived from pGEX-2T and contain a Thrombin recognition site. pGEX-5X-1, pGEX-5X-2, and pGEX5X-3 are derivatives of pGEX-3X and possess a Factor Xa recognition site.

Supplier: MP Biomedicals

Poly-L-lysine is a positively charged amino acid polymer. Poly-lysine binds to DNA, red cell membrane and any negatively charged protein. It is typically used as a coating substrate for culture dishes, slides, etc. It enhances electrostatic interaction between negatively charged ions of the cell membrane and the culture surface. When adsorbed to the culture surface, poly-lysine increases the number of positively charged sites available for cell binding.

Supplier: Thermo Orion

This benchtop meter is ideal for a wide range of applications and advanced pH and conductivity analysis in the lab. It offers two measuring channels allowing users to measure pH and conductivity simultaneously or view each channel separately.

Supplier: Brand

PP. These 0,2 and 0,5 ml PCR tubes with attached caps are compatible with leading thermal cyclers with heated lids.

Supplier: MP Biomedicals

Nucleic Acid Purification Kits and Reagents, PPS solution

Supplier: CUSTOM MADE CHEMICALS LAB

33 COMPONENTS MIX 1 * 10 Ampoul

Supplier: LGC Standards PROMOCHEM

N-TETRACONT. 20 MG AND N-DECANE IN HEXAN 1 * 100 mL

Supplier: Hach

COPPER FREE REAGENT POWDER PILLOWS 1 * 100 items

Supplier: MP Biomedicals

Dimethyl Sulfoxide is ideal for use as a cryoprotectant. Also used in chemical reactions, in polymerase chain reactions (PCR) as a PCR cosolvent to help improve yields, especially in long PCR, and as a cryoprotectant vitrification agent for the preservation of cells, tissues and organs. DMSO is used in cell freezing media to protect cells from ice crystal-induced mechanical injury. It is used for frozen storage of primary, sub-cultured, and recombinant heteroploid and hybridoma cell lines, embryonic stem cells (ESC), and hematopoietic stem cells. DMSO is frequently used in the combinations with BSA or fetal bovine serum (FBS). Used to enhance dermal absorption of many chemicals. A solvent for many organic and inorganic compounds including fats, carbohydrates, dyes, resins, and polymers. Used in antifreeze or hydraulic fluids. A cryopreservative for cell cultures. Used in the oxidation of thiols and disulfides to sulfonic acids.

Dimethyl sulfoxide (DMSO) is a highly polar aprotic organic reagent that has exceptional solvent properties for organic and inorganic chemicals.

Physical Apppearance: Liquid
Viscosity: 1.1 centipoises (27 °C)
Vapor Density: 2.7 (vs air)
Vapor Pressure: 0.55 hPa at 20 °C, 0.42 mmHg (20 °C)
Refractive Index: n20/D 1.479(lit.)
Solubility: Soluble in water (1 mL DMSO + 1 mL H2O), methanol, acetone, ether, benzene, chloroform

Supplier: Thermo Fisher Scientific

The Pierce™ yeast DNA extraction reagent kit uses Y-PER yeast protein extraction reagent to quickly extract and purify genomic and plasmid DNA from yeast.

Supplier: MACHEREY-NAGEL

QUANTOFIX CHLORINE 500 TEST STRIPS 1 * 100 Tests

Supplier: IKA

Tool kit for dismantling T25 homogeniser dispersing tools,IKA 1 * 1 items

Supplier: Brand

PP. Eight connected 0,2 ml tubes and separate domed or flat caps in strips of 8.

Supplier: VARIAN

TUBING SS REG 25MX1/4INCHX4.4 EA=25MR 1 * 1 items

Supplier: Corning

Removing excess dye terminator is an essential step prior to Sanger sequencing. Carryover of the excess dye into the sequencing reactions may result in dye blobs resulting in inaccurate results. The AxyPrep™ Mag DyeClean kit utilises a paramagnetic bead-based purification system for Sanger sequencing reaction dye terminator clean-up. The protocol is simple and comprises binding, washing and elution steps which can be performed directly in the thermal cycling plate. This kit requires no centrifugation or filtration steps.

Supplier: Merck

L(+)-Cysteine hydrochloride monohydrate, Millipore®

Supplier: HIRSCHMANN

Flask, volumetric, capacity 25ml, class A, USP certificate 1 * 1 items

Supplier: HIRSCHMANN

VOL.FLASK 25ML NS12/21 A HOLLOW GLAS WI 1 * 2 items

Supplier: Cytiva

illustra™ MicroSpin™ S-400 HR columns designed for rapid purification of PCR products (>200 bp) from unincorporated primers (<32-mers) and nucleotides using spin-column chromatography.

Supplier: ProSci Inc.

FBXO25 is a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein belongs to the Fbxs class. Three alternatively spliced transcript variants encoding distinct isoforms have been found for this gene.This gene encodes a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbxs class. Three alternatively spliced transcript variants encoding distinct isoforms have been found for this gene.

Supplier: ProSci Inc.

Hemagglutinin Monoclonal Antibody: Influenza A virus is a major public health threat, killing more than 30,000 people per year in the USA. Novel influenza virus strains caused by genetic drift and viral recombination emerge periodically to which humans have little or no immunity, resulting in devastating pandemics. Influenza A can exist in a variety of animals, but it is in birds that all subtypes can be found. These subtypes are classified based on the combination of the virus coat glycoproteins hemagglutinin (HA) and neuraminidase (NA) subtypes. HA interacts with host cell surface proteins containing oligosaccharides with terminal sialyl residues. Its extracellular region has two domains (HA1 and HA2); HA1 is cleaved from the main hemagglutinin protein by the host immune system. During 1997, an H5N1 avian influenza virus was determined to be the cause of death in 6 of 18 infected patients in Hong Kong. This more recent virulent strain of H5N1 is now seen in Africa and Europe, as well as in Southeast Asia. There is some evidence of human to human spread of this virus, but it is thought that the efficiency of this type of transmission is low. Virus isolated from a human infected with the H5N1 strain in 1997 could bind to oligosaccharides from human as well as avian sources, indicating its species-jumping ability.

Supplier: HIRSCHMANN

VOL.FLASK 25ML NS10/19 A HOLLOW GLASS 1 * 2 items

Supplier: Hospidex

Microsyringe 25µl GC standard with glass handle and fixed needle 1 * 1 items