59772 Results for: "Ig\u0142y+do+strzykawek&pageNo=50&view=list"

Supplier: ProSci Inc.

tumour Necrosis Factor- alpha (TNF- alpha) is secreted by macrophages, monocytes, neutrophils, T-cells, and NK-cells following stimulation by bacterial LPS. Cells expressing CD4 secrete TNF- alpha while cells that express CD8 secrete little or no TNF- alpha. Synthesis of TNF- alpha can be induced by many different stimuli including interferons, IL2, and GM-CSF. The clinical use of the potent anti-tumour activity of TNF- alpha has been limited by the proinflammatory side effects such as fever, dose-limiting hypotension, hepatotoxicity, intravascular thrombosis, and hemorrhage. Designing clinically applicable TNF- alpha mutants with low systemic toxicity has been of intense pharmacological interest. Human TNF- alpha that binds to murine TNF-R55 but not murine TNF-R7, exhibits retained anti-tumour activity and reduced systemic toxicity in mice compared with murine TNF- alpha, which binds to both murine TNF receptors. Based on these results, many TNF- alpha mutants that selectively bind to TNF-R55 have been designed. These mutants displayed cytotoxic activities on tumour cell lines in vitro and have exhibited lower systemic toxicity in vivo. Recombinant Human TNF- alpha High Active Mutant differs from the wild-type by amino acid subsitution of amino acids 1-7 with Arg8, Lys9, Arg10 and Phe157. This mutant form has been shown to have increased activity with less inflammatory side effects in vivo.

Supplier: ProSci Inc.

R-spondin-1 is also known as Roof plate-specific Spondin 1 (RSPO1) and cysteinerich and single thrombospondin domain containing protein 3 (Cristin 3), is a secreted protein which belongs to the R-Spondin family and encodes a secreted activator protein with two cystein-rich, furin-like domains and one thrombospondin type 1 domain. All Rspondins regulate Wnt/β-catenin signaling, but have distinct expression patterns. Like other R-Spondins, R-Spondin-1 contains two adjacent cysteinerich furinlike domains (aa 34-135) with one potential N-glycosylation site, followed by a thrombospondin (TSP1) motif (aa 147-207) and a region rich in basic residues (aa 211-263). Only the furinlike domains are needed for β-catenin stabilisation. A putative nuclear localisation signal at the C-terminus may allow some expression in the nucleus. Potential isoforms of 200 and 236 aa have an alternate, shorter N-terminus or are missing aa 146-208, respectively. R-Spondin-1 is expressed in early development at the roof plate boundary and is thought to contribute to dorsal neural tube development. Human RSPO1 disruption results in a recessive syndrome characterized by XX sex reversal, palmoplantar hyperkeratosis and predisposition to squamous cell carcinoma of the skin. It has been shown that the complete female-to-male sex reversal is due to the absence of the testis-determining gene, SRY. R-Spondin-1 regulates Wnt/β-catenin by competing with the Wnt antagonist DKK1 for binding to the Wnt co receptors, Kremen and LRP6, reducing their DKK1 mediated internalisation. Reports differ on whether R-spondin 1 binds LRP6 directly.

Supplier: G-Biosciences

Streptavidin Resin is designed for the single step small and large scale affinity purification of proteins and antibodies with a biotin tag. Biotin, a 244 Da vitamin (Vitamin H) molecule, exhibits an extraordinary binding affinity for avidin (Ka=10¹⁵ M⁻¹) and streptavidin (Ka=10¹⁵ M⁻¹). Biotin and (strept)avidin interaction is rapid and once the bond is established it can survive up to 3M guanidinehydrochloride and extremes of pH. Biotin-avidin bonds can only be reversed by denaturing the avidin protein molecule with 8M guanidine-hydrochloride at pH 1,5 or by autoclaving. The biotinylated molecules are efficiently probed with avidin or streptavidin conjugated to reporter molecules, such as peroxidases or phosphatases.

Supplier: IKA

WIRE IGNITION 50MMLENGTH C710.3 1 * 500 items

Supplier: Kavalier

FLASK ROUND 1L BORO 3.3 WIDE NECK 1 * 10 items

Supplier: Epredia

Microslide cut frosted 20mm glass cello ISO 8037/1 1,0mm 1 * 2.000 items

Supplier: Thermo Orion

These bench top meters with conductivity module meet most challenging applications for pH, ion concentration, mV, ORP and temperature. The meters offer interchangeable measurement modules that allow multiple users to customise four separate channels to meet their specific requirements.

Supplier: ProSci Inc.

Human EN-RAGE belongs to the S100/calgranulin superfamily. There are at least 21 different S100 proteins and the protein is 100% soluble in ammonium sulfate at neutral pH. S100 proteins play a role in regulation of protein phosphorylation, transcription factors, the dynamics of cytoskeleton constituents, enzyme activities, cell growth and differentiation, and the inflammatory response.Human EN-RAGE is characterized by two EF-hand calcium-binding motifs, zinc- and copper-binding protein.S100A12 is a disulfide-linked homodimer and the interface between the two subunits is composed mostly of hydrophobic residues.Its proinflammatory activity involves recruitment of leukocytes, promotion of cytokine and chemokine production, and regulation of leukocyte adhesion and migration. EN-RAGE acts as an alarmin or a danger associated molecular pattern (DAMP) molecule and stimulates innate immune cells via binding to receptor for advanced glycation endproducts (AGER). Binding to AGER activates the MAP-kinase and NF-kappa-B signaling pathways leading to production of proinflammatory cytokines and up-regulation of cell adhesion molecules ICAM1 and VCAM1. It also acts as a monocyte and mast cell chemoattractant. Moreover, it can stimulate mast cell degranulation and activation which generates chemokines, histamine and cytokines inducing further leukocyte recruitment to the sites of inflammation. It can inhibit the activity of matrix metalloproteinases; MMP2, MMP3 and MMP9 by chelating Zn2+from their active sites.

Supplier: Merck

Phosphatase substrate has been used as a substrate in tartrate-resistant acid phosphatase (TRAP) assay and alkaline phosphatase (ALP). Substrate for the determination of acid and alkaline phosphatases.

Supplier: FISHER CONTAINER

[EN]TUBING 70 MM TYVEK 1059B / PET 48 G 1 * 20 Rolle

Supplier: Epredia

Microslide 90° frosted 20mm glass cello ISO 8037/1 1,0mm 1 * 2.000 items

Supplier: Epredia

Microslide Superfrost 90° CC yellow glass cello ISO 8037/1 1,0mm 1 * 2.000 items

Supplier: Mettler - Toledo

Not only do these meters measure pH and ORP with classical sensors, but they also support pH measurement with ISFET technology. The instruments can effectively cope with complex applications and stringent requirements in regulated markets as well as with routine measurement tasks in laboratories.

Supplier: LAUDA

The Alpha heating thermostats have an easy to use control console featuring three button operation and large, clear LED display, ensuring easy navigation through the menu. The thermostats are suitable for use with non flammable liquids (water, water/glycol mixtures). Units can provide both internal and external thermostating. Temperature stability of ±0,05 K gives precise heating and cooling suitable for a wide range of applications. Using an optional pump circulation set and a cooling coil, the heating thermostat can be expanded to create a fully fledged thermostating system.

Supplier: MP Biomedicals

p nitrophenol is the substrate of choice for use with alkaline phosphatase in ELISA procedures. This substrate produces a soluble end product that is yellow in color and can be read spectrophotometrically at 405 nm. The pNPP reaction may be stopped with 3 M NaOH and read at 405 nm.

Supplier: Portwest

This garment was voted number one in its class by customers when tested against leading competitors. The breathable and waterproof qualities of the jacket ensure that you are kept 100% dry and comfortable at all times.

Supplier: MACHEREY-NAGEL

The NANOCOLOR® Advance combines the advantages of a portable compact photometer with the high-precision measurement technology and reliability of a benchtop spectrophotometer.

Supplier: P D UMWELTSCHUTZ UND PRUEFGERA

Federklammer für Erlenmeyerkolben 500 ml 1 * 1 ST

Supplier: FISHER CONTAINER

[EN]TUBING 420 MM TYVEK 1059B / PET 48 G 1 * 10 Rolle

Supplier: Kavalier

FLASK ROUND 500ML BORO 3.3 WIDE NECK 1 * 10 items

Supplier: DEUTSCH NEUMANN

HOLLOW STOPPERS NAT. RUBB. RED 19/17MM 1 * 100 items

Supplier: ProSci Inc.

Mouse Cxcl12 is a secreted and highly conserved protein which belongs to the intercrine alpha (chemokine CxC) family.CXCL12 is widely expressed in various organs including brain, kidney, skeletal muscle, heart, liver, and lymphoid organs. Cxcl12 activates the C-X-C chemokine receptor CXCR4 to induce a rapid and transient rise in the level of intracellular calcium ions and chemotaxis. It also binds to atypical chemokine receptor ACKR3 which activates the beta-arrestin pathway and acts as a scavenger receptor for SDF-1. Cxcl12 has several critical functions during embryonic development such as B-cell lymphopoiesis, myelopoiesis in bone marrow and heart ventricular septum formation. Cxcl12 plays an important role in acting as a positive regulator of monocyte migration and a negative regulator of monocyte adhesion via the LYN kinase. It stimulates migration of monocytes and T-lymphocytes through its receptors, CXCR4 and ACKR3, and decreases monocyte adherence to surfaces coated with ICAM-1, a ligand for beta-2 integrins. SDF1A/CXCR4 signaling axis inhibits beta-2 integrin LFA-1 mediated adhesion of monocytes to ICAM-1 through LYN kinase. It also plays a protective role after myocardial infarction, induces down-regulation and internalization of ACKR3 expressed in various cells and stimulates the proliferation of bone marrow-derived b progenitor cells in the presence of IL-7 as well as growth of the stromal cell-dependent B-cell clone DW34 cells.

Supplier: Thermo Orion

These bench top meters with pH/LogR module meet most challenging applications for pH, mV, ORP and LogR temperature. The meters offer interchangeable measurement modules that allow multiple users to customise four separate channels to meet their specific requirements. The LogR™ technology enables users to measure both pH and temperature using the glass-bulb of most pH electrodes – ideal for small sample volumes and samples that are difficult to clean.

Supplier: SAMCO

PIPETTE T/FER EXT/F/TIP STER PE 35.4ML 1 * 4.000 items

Supplier: Epredia

Microslide Superfrost 90° CC yellow glass cello ISO 8037/1 1,0mm 1 * 1.000 items

Supplier: Thermo Scientific

Uv-c irradiator spot k 115 v 60 hz 1 * 1 items

Supplier: Greiner Bio-One

FOAM PLUG 50MM CEAPRENE 1 * 315 items

Supplier: Portwest

Stand out from the crowd with this classic bomber jacket. It features a detachable fur liner, removable sleeves, and detachable collar, making it adaptable to all weather conditions.

Supplier: Thermo Scientific

The manual defrost, high-performance freezers are designed for applications in which even slight intermittent coil warming during auto defrost cannot be tolerated. The Series’ V-drive technology is designed to provide temperature uniformity that continually adapts to user patterns, offering significant energy savings without compromising protection.

Supplier: Epredia

Microslide Superfrost 90° CC white glass with box cello ISO 8037/1 1,0mm 1 * 2.000 items