11675 Results for: "p-Tolyl+trifluoromethanesulphonate&pageNo=21&view=list"

Supplier: Bioss

This gene encodes an aspartic proteinase that belongs to the peptidase family A1. The encoded protein is a digestive enzyme that is produced in the stomach and constitutes a major component of the gastric mucosa. This protein is also secreted into the serum. This protein is synthesised as an inactive zymogen that includes a highly basic prosegment. This enzyme is converted into its active mature form at low pH by sequential cleavage of the prosegment that is carried out by the enzyme itself. Polymorphisms in this gene are associated with susceptibility to gastric cancers. Serum levels of this enzyme are used as a biomarker for certain gastric diseases including Helicobacter pylori related gastritis. Alternate splicing results in multiple transcript variants. A pseudogene of this gene is found on chromosome 1.

Supplier: Bioss

FAM48A is a 779 amino acid protein that interacts with p38 MAP kinase. Specifically, FAM48A and p38 are required for downregulation of E-cadherin during gastrulation. In adult tissues, FAM48A is highly expressed in testis and moderately expressed in brain and pituitary gland. It is also expressed in several fetal tissues, including lung, brain, thymus and kidney. Expression of FAM48A has been shown to be downregulated in malignant prostate tissues. The gene encoding FAM48A maps to human chromosome 13, which houses over 400 genes and comprises approximately 4% of the human genome. Key tumor suppressor genes on chromosome 13 include the breast cancer susceptibility gene, BRCA2, and the RB1 (retinoblastoma) gene.

Supplier: Bioss

Component of the COP9 signalosome complex (CSN), a complex involved in various cellular and developmental processes. The CSN complex is an essential regulator of the ubiquitin (Ubl) conjugation pathway by mediating the deneddylation of the cullin subunits of SCF-type E3 ligase complexes, leading to decrease the Ubl ligase activity of SCF-type complexes such as SCF, CSA or DDB2. The complex is also involved in phosphorylation of p53/TP53, c-jun/JUN, IkappaBalpha/NFKBIA, ITPK1 and IRF8, possibly via its association with CK2 and PKD kinases. CSN-dependent phosphorylation of TP53 and JUN promotes and protects degradation by the Ubl system, respectively. Has some glucocorticoid receptor-responsive activity.

Supplier: Bioss

Chromosome 3 is made up of about 214 million bases encoding over 1,100 genes. Notably, there is a chemokine receptor gene cluster and a variety of human cancer related loci on chromosome 3. Particular regions of the chromosome 3 short arm are deleted in many types of cancer cells. Key tumor suppressing genes on chromosome 3 encode apoptosis mediator RASSF1, cell migration regulator HYAL1 and angiogenesis suppressor SEMA3B. Marfan Syndrome, porphyria, von Hippel-Lindau syndrome, osteogenesis imperfecta and Charcot-Marie-Tooth Disease are a few of the numerous genetic diseases associated with chromosome 3. The C3orf38 gene product has been provisionally designated C3orf38 pending further characterization.

Supplier: Bioss

Playing a essential role in the fission of tubules that serve as transport intermediates during endosome sorting, the WASH complex is present at the surface of endosomes and functions to recruit and activate the Arp2/3 complex for induction of actin polymerization. FAM21, Putative WASH complex subunit FAM21, is a component of the WASH complex. Having undergone evolutionary duplication, four highly homologous family members exist including FAM21A, FAM21B, FAM21C and FAM21D. FAM21 links the WASH complex to endosomes and is required for WASM-dependent retromer-mediated sorting. Also, by directly interacting with CapZ, FAM21 inhibits its anti-capping activity, thereby regulating actin dynamics.

Supplier: Bioss

Neuronal migration of the central nervous system is a specialised form of cell motility that takes place in the laminar structure of the cortical regions of brain. Astrotactin is a neuronal cell surface protein expressed on postmitotic neuronal precursors in the cerebellum, hippocampus, cerebrum, and olfactory bulb. Astrotactin 2 is a paralog of Astrotactin. Astrotactin mediates neuron-astroglial interactions and is also implicated in synaptic development as well as many other neuronal activities. Astrotactin has three epidermal growth factor repeat domains and two fibronectin type III repeat domains. The human Astrotactin gene shows extensive homology to the mouse Astrotactin gene. Mutations in the Astrotactin gene are linked to neuronal migration defects in both species.

Supplier: Bioss

Non-enzymatic component of C3 and C5 convertases and thus essential for the propagation of the classical complement pathway. Covalently binds to immunoglobulins and immune complexes and enhances the solubilization of immune aggregates and the clearance of IC through CR1 on erythrocytes. C4A isotype is responsible for effective binding to form amide bonds with immune aggregates or protein antigens, while C4B isotype catalyzes the transacylation of the thioester carbonyl group to form ester bonds with carbohydrate antigens. Derived from proteolytic degradation of complement C4, C4a anaphylatoxin is a mediator of local inflammatory process. It induces the contraction of smooth muscle, increases vascular permeability and causes histamine release from mast cells and basophilic leukocytes.

Supplier: Bioss

Component of the COP9 signalosome complex (CSN), a complex involved in various cellular and developmental processes. The CSN complex is an essential regulator of the ubiquitin (Ubl) conjugation pathway by mediating the deneddylation of the cullin subunits of SCF-type E3 ligase complexes, leading to decrease the Ubl ligase activity of SCF-type complexes such as SCF, CSA or DDB2. The complex is also involved in phosphorylation of p53/TP53, c-jun/JUN, IkappaBalpha/NFKBIA, ITPK1 and IRF8, possibly via its association with CK2 and PKD kinases. CSN-dependent phosphorylation of TP53 and JUN promotes and protects degradation by the Ubl system, respectively. Has some glucocorticoid receptor-responsive activity.

Supplier: Bioss

Non-enzymatic component of C3 and C5 convertases and thus essential for the propagation of the classical complement pathway. Covalently binds to immunoglobulins and immune complexes and enhances the solubilization of immune aggregates and the clearance of IC through CR1 on erythrocytes. C4A isotype is responsible for effective binding to form amide bonds with immune aggregates or protein antigens, while C4B isotype catalyzes the transacylation of the thioester carbonyl group to form ester bonds with carbohydrate antigens. Derived from proteolytic degradation of complement C4, C4a anaphylatoxin is a mediator of local inflammatory process. It induces the contraction of smooth muscle, increases vascular permeability and causes histamine release from mast cells and basophilic leukocytes.

Supplier: Bioss

FAM48A is a 779 amino acid protein that interacts with p38 MAP kinase. Specifically, FAM48A and p38 are required for downregulation of E-cadherin during gastrulation. In adult tissues, FAM48A is highly expressed in testis and moderately expressed in brain and pituitary gland. It is also expressed in several fetal tissues, including lung, brain, thymus and kidney. Expression of FAM48A has been shown to be downregulated in malignant prostate tissues. The gene encoding FAM48A maps to human chromosome 13, which houses over 400 genes and comprises approximately 4% of the human genome. Key tumor suppressor genes on chromosome 13 include the breast cancer susceptibility gene, BRCA2, and the RB1 (retinoblastoma) gene.

Supplier: Bioss

The three human RAS genes encode highly related 188 to 189 amino acid proteins, designated H-Ras, N-Ras and K-Ras4A and K-Ras4B (the two K-Ras proteins arise from alternative gene splicing). Ras proteins function as binary molecular switches that control intracellular signaling networks. Ras-regulated signal pathways control such processes as actin cytoskeletal integrity, proliferation, differentiation, cell adhesion, apoptosis, and cell migration. Ras and ras-related proteins are often deregulated in cancers, leading to increased invasion and metastasis, and decreased apoptosis.DIRAS1 displays low GTPase activity and exists predominantly in the GTP-bound form. It is highly expressed in heart and brain.

Supplier: THARMAC GmbH

Versatile cytocentrifuges suitable for small and large sample volumes, designed for thin layer and mono layer cell preparations in medical applications such as cytology, urology, microbiology, haematology, immunocytochemistry, virology and oncology.

Supplier: Bioss

G protein-coupled receptors (GPRs), also known as seven transmembrane receptors, heptahelical receptors or 7TM receptors, comprise a superfamily of proteins that play a role in many different stimulus-response pathways. G protein coupled receptors translate extracellular signals into intracellular signals (G protein activation) and they respond to a variety of signaling molecules, such as hormones and neurotransmitters. GPR21 is a 349 amino acid multi-pass membrane protein that functions as an orphan receptor and belongs to the GPR1 family. The gene encoding GPR21 maps to human chromosome 9, which houses over 900 genes and comprises nearly 4% of the human genome. Hereditary hemorrhagic telangiectasia, which is characterized by harmful vascular defects, and Familial dysautonomia, are both associated with chromosome 9.

Supplier: Bioss

Inositol 1,4,5-triphosphate (IP3) functions as a second messenger for a myriad of extracellular stimuli including hormones, growth factors and neurotransmitters. Receptor tyrosine kinases indirectly increase the intracellular levels of IP3 through the activation of phospholipases such as phospholipase C (PLC), which convert phosphatidylinositol-4,5 bisphosphate into IP3 and diacylglycerol (DAG). The inositol 1,4,5-triphosphate receptor, IP3R, acts as an inositol triphosphate (IP3)-gated calcium release channel in a variety of cell types. Three IP3 receptor subtypes have been described and are designated IP3R-I, IP3R-II and IP3R-III. IP3R-I is the predominant IP3R subtype expressed in neuronal tissues and the central nervous system, but is also expressed at high levels in the liver.

Supplier: HELLMA

Hellma® high precision quartz glass flow-through cells for absorption measurements in the UV/Vis range and/or fluorescence measurements, 0,1 to 50 mm path length, with inlet and outlet nozzle, or 2 screw connections and FEP tubes.

Supplier: Thermo Fisher Scientific

Achieve fast, high-resolution separations of aromatic compounds using Thermo Scientific™ Accucore Phenyl-X columns.

Supplier: Thermo Fisher Scientific

These columns are designed for separating highly hydrophilic molecules by hydrophilic interaction liquid chromatography (HILIC). They are suited for use in a broad range of applications, including separation of hydrophilic drugs and drug metabolites.

Supplier: Portwest

This fleece jacket made of 100% polyester with anti-pilling finish offers great warmth and comfort to the wearer.

Supplier: Avantor

Tyto injekční filtry jsou speciálně navrženy pro aplikace chromatografické přípravy vzorků a jsou optimalizovány tak, aby poskytovaly co nejkonzistentnější výsledky s menším množstvím extrahovatelných látek.

Supplier: VWR Collection

Řada sítovacích strojů EML 200 nabízí různé typy jednotek. Všechny modely jsou vhodné pro síta s Ø 50 až 203 mm, s maximálním zatížením 3 kg, kryt jednotky je vyroben z litého hliníku a součástí jednotky je vylepšený upínací systém.

Supplier: Avantor

These Avantor® Hichrom C18 columns offer high performance in order to tackle the most challenging reversed-phase applications. The use of ultra pure silica, advanced bonding technology, superior column specification and comprehensive batch validation all contribute to the columns’ excellent reproducibility.

Supplier: Thermo Orion

Use the Orion Star T920 redox titrator for dedicated redox titrations including sulphite/SO₂ and reducing sugar in juice and wine, ascorbic acid (vitamin C) and peroxide value in food products, dissolved oxygen in wastewater by Winkler titration and organic matter in soil.

Supplier: DuPont

Air-fed coverall with cuff elastication and over boot assembly, consisting of integrated dissipative inner boots attached to dissipative outer boots.

Supplier: Mettler - Toledo

These portable meters provide high quality pH/mV measurements with the simple click of a button. The robust and waterproof design makes the FiveGo instruments the perfect companion to get reliable measurement data even in harsh conditions. Ideal for mobile applications in the laboratory, at-line, or outdoors.

Supplier: Bel-Art Products, a Part of SP

Accurate, repetitive aliquoting into microplate wells is simplified by placing the plate on the adjustable stand and setting the slant to an optimal angle. The slanted plate permits the user to track which wells have received aliquots by visibly contrasting the menisci between adjoining wells.

Supplier: LEICA MICROSYSTEMS

Ivesta 3 – For inspection and rework only, but no camera for documentation is needed.
Ivesta 3 with C-mount – Gives you the flexibility to add a camera if needed and thus turn it into a digital microscope solution.
Ivesta 3 with integrated camera – For digital image sharing directly on different devices, such as, a monitor, mobile device, or computer.

Supplier: VWR Collection

The newly developed ChromAssist Data Station combines the proven intuitive structure of the Hitachi software family with an innovative new design. As a chromatography data system (CDS), ChromAssist contains all the necessary functions for controlling VWR® Hitachi HPLC and UHPLC instruments, including method creation, sample table, data integration and reporting.

Supplier: VWR Chemicals

Avantor now offers a complete range of COD (Chemical Oxygen Demand) calibration standards (traceable to BAM) as CRM with concentrations between 20 and 10000 mg/L. Can be used to calibrate, control, verify or validate all COD test methods.

Supplier: Bioss

ADRM1 is a 407 amino acid protein that localises to both the nucleus and the cytoplasm and is thought to be involved in protein recruitment and cell adhesion. An integral membrane protein, ADRM1 functions to recruit UCH-L5, a deubiquitinating enzyme, to the 26S proteasome, and once at the proteasome it promotes the activity of UCH-L5. Additionally, ADRM1 is thought to mediate lymphocyte adhesion in endothelial cells and may thus play a role in lymphocyte homing. ADRM1 expression is induced by IFN-g in some cancer cell lines and its expression is upregulated in other metastatic cells, suggesting a role in carcinogenesis. Two isoforms of ADRM1 exist due to alternative splicing events.

Supplier: Bioss

Representing approximately 6% of the human genome, chromosome 4 contains nearly 900 genes. Notably, the Huntingtin gene, which is found to encode an expanded glutamine tract in cases of Huntington's disease, is on chromosome 4. FGFR-3 is also encoded on chromosome 4 and has been associated with thanatophoric dwarfism, achondroplasia, Muenke syndrome and bladder cancer. Chromosome 4 is also tied to Ellis-van Creveld syndrome, methylmalonic acidemia and polycystic kidney disease. Chromosome 4 reportedly contains the largest gene deserts (regions of the genome with no protein encoding genes) and has one of the two lowest recombination frequencies of the human chromosomes. The C4orf40 gene product has been provisionally designated C4orf40 pending further characterization.