145730 Results for: "Spray+Bottles&pageNo=10&view=easy"

Supplier: SGI - DNA Synthetic Genomics

The Gibson Assembly® Ultra Kit provides a robust and efficient method to seamlessly construct synthetic genes, genetic pathways, as well as entire genomes. This method is designed for complex assembly of 2 to 15 large DNA constructs using only small amounts (nanograms) of DNA.

Supplier: ProSci Inc.

Beta-catenin associates with the cytoplasmic portion of E-cadherin, which is necessary for the function of E-cadherin as an adhesion molecule. In normal tissues, beta-catenin is localized to the membrane of epithelial cells, consistent with its role in the cell adhesion complex. In breast ductal neoplasia, it is usually localized in cellular membranes. However, in lobular neoplasia, a marked redistribution throughout the cytoplasm results in a diffuse cytoplasmic pattern. Staining with beta-catenin antibody and E-cadherin antibody helps in the accurate identification of ductal and lobular neoplasms, including a distinction between low-grade ductal carcinoma in situ (DCIS) and lobular carcinoma. Additionally, some rectal and gastric adenocarcinomas demonstrate diffuse cytoplasmic staining and a lack of membranous staining, mimicking the staining pattern observed with lobular breast carcinomas.

Supplier: ProSci Inc.

This antibody recognises the epsilon-chain of CD3 (CD3e), which consists of five different polypeptide chains (designated as gamma, delta, epsilon, zeta, and eta) with MW ranging from 16 to 28 kDa. The CD3 complex is closely associated at the lymphocyte cell surface with the Tcell antigen receptor (TCR). Reportedly, CD3 complex is involved in signal transduction to the Tcell interior following antigen recognition. The CD3 antigen is first detectable in early thymocytes and probably represents one of the earliest signs of commitment to the Tcell lineage. In cortical thymocytes, CD3 is predominantly intra-cytoplasmic. However, in medullary thymocytes, it appears on the Tcell surface. CD3 antigen is a highly specific marker for Tcells, and is present in majority of Tcell neoplasms.

Supplier: ProSci Inc.

CD31, also called PECAM-1, is a transmembrane glycoprotein member of the immunoglobulin supergene family of adhesion molecules. It is expressed by stem cells of the hematopoietic system and CD31 antibody can be used to identify and concentrate these cells for experimental studies as well as for bone marrow transplantation. CD31 antibody has shown to be highly specific and sensitive for vascular endothelial cells. Staining of nonvascular tumors (excluding hematopoietic neoplasms) is rare. This antibody reacts with normal, benign, and malignant endothelial cells which make up blood vessel lining. The level of CD31 expression can help to determine the degree of tumor angiogenesis, and a high expression level may imply a rapidly growing tumor and potentially a predictor of tumor recurrence.

Supplier: ProSci Inc.

This gene is thought to play an important role in calcium homeostasis. The gene is expressed from two promoters and undergoes extensive alternative splicing. The encoded set of proteins share varying amounts of overlap near their N-termini but have substantial variations in their C-terminal domains resulting in distinct functional properties. The longest isoforms (a and f) include a C-terminal Aspartyl/Asparaginyl beta-hydroxylase domain that hydroxylates aspartic acid or asparagine residues in the epidermal growth factor (EGF)-like domains of some proteins, including protein C, coagulation factors VII, IX, and X, and the complement factors C1R and C1S. Other isoforms differ primarily in the C-terminal sequence and lack the hydroxylase domain, and some have been localized to the endoplasmic and sarcoplasmic reticulum. Some of these isoforms are found in complexes with calsequestrin, triadin, and the ryanodine receptor, and have been shown to regulate calcium release from the sarcoplasmic reticulum. Some isoforms have been implicated in metastasis.

Supplier: Portwest

The DX4 holster trouser is ergonomically designed and uses the targeted placement of dynamic 4X stretch fabrics to give maximum range of movement when working. The trouser features a high-rise back waistband with side elastication, ensuring protection in all working positions.

Supplier: Portwest

A highly innovative and functional jacket that provides seven wearer combinations. This extremely versatile jacket is highly adaptable to all weather conditions and is certified to the highest in waterproof and breathable standards.

Supplier: MP Biomedicals

Storage: -20 °C.
Adenosine 5'-triphosphate (ATP) and its phosphate bonds are the basic components of energy exchange in many biological systems.
Adenosine 5'-triphosphate (ATP) is a central component of energy storage and metabolism in vivo. ATP is used in many cellular processes, respiration, biosynthetic reactions, motility, and cell division. ATP is a substrate of many kinases involved in cell signaling and of adenylate cyclase(s) that produce the second messenger cAMP. ATP provides the metabolic energy to drive metabolic pumps. ATP serves as a coenzyme in a wide array of enzymatic reactions.
P2 purinergic agonist; increases activity of Ca2+-activated K+ channels; substrate for ATP-dependent enzyme systems.

Supplier: ProSci Inc.

Cytochrome c oxidase (COX), the terminal component of the mitochondrial respiratory chain, catalyzes the electron transfer from reduced cytochrome c to oxygen. This component is a heteromeric complex consisting of 3 catalytic subunits encoded by mitochondrial genes and multiple structural subunits encoded by nuclear genes. The mitochondrially-encoded subunits function in electron transfer, and the nuclear-encoded subunits may function in the regulation and assembly of the complex. This nuclear gene encodes heme A:farnesyltransferase, which is not a structural subunit but required for the expression of functional COX and functions in the maturation of the heme A prosthetic group of COX. This protein is predicted to contain 7-9 transmembrane domains localized in the mitochondrial inner membrane. A gene mutation, which results in the substitution of a lysine for an asparagine (N204K), is identified to be responsible for cytochrome c oxidase deficiency. In addition, this gene is disrupted in patients with CMT1A (Charcot-Marie-Tooth type 1A) duplication and with HNPP (hereditary neuropathy with liability to pressure palsies) deletion.

Supplier: ProSci Inc.

Growth hormone (GH), also known as somatotropin (or as human growth hormone [hGH or HGH] in its human form), is a peptide hormone that stimulates growth, cell reproduction, and cell regeneration in humans and other animals. It is thus important in human development. It is a type of mitogen which is specific only to certain kinds of cells. Growth hormone is a 191-amino acid, single-chain polypeptide that is synthesised, stored, and secreted by somatotropic cells within the lateral wings of the anterior pituitary gland.

GH is a stress hormone that raises the concentration of glucose and free fatty acids. It also stimulates production of IGF-1.

The major isoform of the human growth hormone is a protein of 191 amino acids and a molecular weight of 22,124 daltons. The structure includes four helices necessary for functional interaction with the GH receptor. It appears that, in structure, GH is evolutionarily homologous to prolactin and chorionic somatomammotropin. [Wiki].

Supplier: ProSci Inc.

Pyruvate dehydrogenase (E1) is one of the three components (E1, E2, and E3) of the large pyruvate dehydrogenase complex. Pyruvate dehydrogenase kinases catalyze phosphorylation of serine residues of E1 to inactivate the E1 component and inhibit the complex. Pyruvate dehydrogenase phosphatases catalyze the dephosphorylation and activation of the E1 component to reverse the effects of pyruvate dehydrogenase kinases. Pyruvate dehydrogenase phosphatase is a heterodimer consisting of catalytic and regulatory subunits. Two catalytic subunits have been reported; one is predominantly expressed in skeletal muscle and another one is is much more abundant in the liver. The catalytic subunit, encoded by this gene, is the former, and belongs to the protein phosphatase 2C (PP2C) superfamily. Along with the pyruvate dehydrogenase complex and pyruvate dehydrogenase kinases, this enzyme is located in the mitochondrial matrix. Mutation in this gene causes pyruvate dehydrogenase phosphatase deficiency. Multiple alternatively spliced transcript variants encoding different isoforms have been identified.

Supplier: Portwest

The DX4 slim fit work bib is expertly designed for exceptional comfort, flexibility, and protection. Made using dynamic 4× stretch fabrics which assure greater ease of movement.

Supplier: Lovibond Tintometer

A series of spectrophotometric colorimeters for colour grading of optically clear samples. Each version of the PFXi 195 includes a selection of standard colour scales that is used in a specific industry sector. Additional scales can be added, at the time of order or remotely, as optional upgrades, to provide the flexibility to meet individual requirements. Results can also be displayed in terms of spectral data and CIE values. For product types that are incompatible with the standard colour scales, the PFXi 195 software allows the users to build up a customised scale from a series of reference samples, and then to obtain the closest match to the stored reference.

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: ProSci Inc.

Tryptophan hydroxylase (TPH) catalyzes the 5-hydroxylation of tryptophan, which is the first step in the biosynthesis of indoleamines (serotonin and melatonin) (Martinez et al., 2001). In mammals, serotonin biosynthesis occurs predominantly in neurons which originate in the Raphe nuclei of the brain, and melatonin synthesis takes place within the pineal gland. Although TPH catalyzes the same reaction within the Raphe nuclei and the pineal gland, TPH activity is rate-limiting for serotonin but not melatonin biosynthesis. Serotonin functions mainly as a neurotransmitter, whereas melatonin is the principal hormone secreted by the pineal gland. The activity of TPH is enhanced by phosphorylation by cAMP-dependent protein kinase (PKA) and Ca2+/calmodulin kinase II (CaM K II) (Jiang et al., 2000; Johansen et al., 1996). CaM K II phosphorylates Ser19 which lies within the regulatory domain of TPH2 (McKinney et

Supplier: ProSci Inc.

It is well known that the control of gene expression involves activation of protein kinase cascades that regulate transcription factors within the nucleus (Karin and Hunter, 1995). The cyclic AMP response element binding protein (CREB) is one of the best characterized stimulus-induced transcription factors (Montminy, 1997). This transcription factor is a component of intracellular signaling events that regulate a wide range of biological functions, from spermatogenesis to circadian rhythms and memory (Shaywitz and Greenberg, 1999; Silva et al., 1998). A variety of protein kinases including protein kinase A (PKA), mitogenactivated protein kinases (MAPKs), and Ca2+/calmodulin-dependent protein kinases (CaMKs) phosphorylate CREB at serine 133 (Ser133), and phosphorylation of Ser133 are required for CREB-mediated transcription (Johannessen et al., 2004; Kornhauser et al., 2002).

Supplier: SCHUELKE MAYR

DOSING PUMP FOR 1L EUROBOTTLE 1 * 1 items

Supplier: EPPENDORF

Unleash the power of precision in DNA research with Eppendorf® DNA LoBind® tubes. Engineered with proprietary LoBind® technology, these microcentrifuge tubes redefine sample handling, minimising the risk of loss and maximising DNA recovery. Ideal for low-concentration applications, including PCR, qPCR, and DNA sequencing, these tubes ensure accuracy, purity, and optimal yields.

Supplier: EPPENDORF

Eppendorf's twin.tec® 96-well, 150 µl PCR Plates feature a polycarbonate frame and thin-walled polypropylene wells ensuring optimal heat transfer and high rigidity. The SafeCode variants enhance sample identification, while the BioBased options, manufactured using renewable resources, provide an eco-friendly alternative without compromising performance.

Supplier: MP Biomedicals

Storage: +4°C, protect from light
3- (4,5-Dimethyl-2-thiazolyl-2)-2,5-diphenyl-tetrazolium bromide is used as a colorimetric metabolic activity indicator in cell viability assays. Thiazolyl Blue Tetrazolium Blue (MTT) is a dye used in measurement of cell proliferation. MTT produces a yellowish solution that is converted to dark blue, water-insoluble MTT formazan by mitochondrial dehydrogenases of living cells. The blue crystals are solubilized with acidified isopropanol and the intensity is measured colorimetrically at 570 nm. MTT has been used as a histochemical/cytochemical reagent and for the detection of NAD. ADP-linked enzyme systems in tissue cannot be detected with MTT, due to binding of the cation by the cyanide trap used. MTT is rapidly reduced to the formazan, which chelates with nickel, copper, and cobalt; the cobalt chelate has been used in oxidative systems.

Supplier: Q BIOANALYTIC

Food safety experts like the German DGHM recommend to test warm water fish for vibrio cholerae . With this Real-Time PCR test you have a very versatile method for food testing, which can gives you results within 24 hrs. The test was developed and validated within the German Network for Vibrio Research 'VibrioNet' with many scientific institutions involved. It can be applied for food and sea water samples. In case of positive results you may be interested to determine whether or not the present strain has the ability to produce toxins. You can use our Real-Time PCR Test for toxicity gene of Vibrio cholera for this purpose VWR catalogue number: QBIAQB-RTI-19. You can use this test in combination with an appropriate pre- enrichment in alkaline peptone-water or you can confirm bacterial colonies on agar plates.

Supplier: CHROMACOL

Level 100 EPA vials: These are processed and packaged under a strict registered ISO Quality Management System in the same manner as Level 300 products. Level 100 products are not certified or pre-cleaned. Every case of product is labelled with its production number and is custody sealed to ensure reliable chain-of-custody. These convenience kits are recommended for discrete water sampling under EPA 40 CFR 136 'Guidelines for Establishing Test Procedures for the Analysis of Pollutants" and EPA 40 CFR 141 "National Interim Primary Drinking Water Regulations: Control of Trihalomethanes in Drinking Water'.

Supplier: ProSci Inc.

This antibody recognises a protein of 25 to 26 kDa, identified as the Bcl-2 alpha oncoprotein. It shows no cross-reaction with Bcl-x or Bax protein. Expression of Bcl-2 alpha oncoprotein inhibits the programmed cell death (apoptosis). In most follicular lymphomas, neoplastic germinal centers express high levels of Bcl-2 alpha protein, whereas the normal or hyperplastic germinal centers are negative. Consequently, this antibody is valuable when distinguishing between reactive and neoplastic follicular proliferation in lymph node biopsies. It may also be used in distinguishing between those follicular lymphomas that express Bcl-2 protein and the small number in which the neoplastic cells are Bcl-2 negative.

Supplier: IKA

The IC immersion circulators have an extended temperature range for tempering fluids in open and covered water baths up to 200/250 °C. The LED/ graphic TFT Display illustrates all relevant process parameters. Units feature push and turn buttons for intuitive menu navigation. IC immersion circulators ensure short heating up times and have a temperature stability of ±0,01/0,02 K (basic/control model). Both models feature optical and acoustic safety warnings, an adjustable safety circuit, a powerful pressure/suction pump and can be used for internal and external applications.

Supplier: ENVIROFALK PHARMAWATERSYSTEMS

FILTER ACTIVE CARBON 20'' ELEMENT 10UM 1 * 1 items

Supplier: Testo

FILTER 325 1 * 1 Each

Supplier: Testo

HPA 1 * 1 items

Supplier: Biotium

EverBrite™ mounting media are anti-fade mountants for preserving fluorescence during microscopy. EverBrite™ mounting media prevent rapid photobleaching of fluorescein, rhodamine, and cyanine based dyes and are optimally formulated for use with Biotum’s CF™ dye conjugates. Unlike Vectashield® EverBrite™ mounting media is compatible with Cy® dyes such as Cy®2, Cy®3 and Cy®5. EverBrite™ mounting medium is a wet-set medium while EverBrite™ hardset mounting medium cures overnight to form a hard permanent seal with the coverslip, eliminating the need to seal coverslip edges with nail polish or other sealants. Both formulations are available with DAPI for blue fluorescent nuclear counterstaining without an additional staining step.

Supplier: GRANT INSTRUMENTS

High quality, digital unstirred water bath range with choice of models from 2 to 34 litres and a dual bath with 5 and 12 litres. Dual baths are ideal when two different temperatures are needed and space is limited. All units have stainless steel tanks and durable painted steel cases, offer fast heat-up times, excellent temperature control, easy to use controls and a bright, clear display. All baths have heater mat technology ensuring optimum working space, without a heating element in the tank they are easier to clean. The 12 litre and larger models feature a convenient drain tap on the front of the bath. The range is ideal for use in university research and teaching, pharma/biotech, healthcare and industrial applications.

Supplier: Bioss

Composed of more than ten subunits, the anaphase-promoting complex (APC) acts in a cell-cycle dependent manner to promote the separation of sister chromatids during the transition between metaphase and anaphase in mitosis. APC, or cyclosome, accomplishes this progression through the ubiquitination of mitotic cyclins and other regulatory proteins that are targeted for destruction during cell division. APC is phosphorylated, and thus activated, by protein kinases Cdk1/cyclin B and polo-like kinase (Plk). APC is under tight control by a number of regulatory factors, including CDC20, CDH1 and MAD2. Specifically, CDC20 and CDH1 directly bind to and activate the cyclin-ubiquitination activity of APCs. In contrast, MAD2 inhibits APC by forming a ternary complex with CDC20 and APC, thus preventing APC activation. APC10 contains a Doc1 homology domain, which is a beta-sandwich structure common to many other putative E3 ubiquitin ligases. APC10 binds to core APC subunits throughout the cell cycle. Specifically, APC10 binds to the C-terminus of CDC27/APC3. During mitosis, APC10 is localized in centrosomes and mitotic spindles. APC10 also localizes to kinetochores from prophase to anaphase, and to the midbody in telophase and cytokinesis.