26104 Results for: "Tungsten+(gold+coated)"

Supplier: Prosci

This mAb is specific for progesterone. It exhibits minimal cross reactivity with related compounds in ELISA. It reacts with Progesterone-11a-HMS-BSA: 100%; 5-beta-Pregnane-3,20-dione: 48%; 5-alpha-Pregnane-3,20-dione: 26.4%; 17-alpha-Hydroxyprogesterone: 2.5% and 20-alpha-Hydroxyprogesterone: 0.04%. Progesterone is a steroid hormone synthesized from the cholesterol derivative, pregnenolone, in the cortex of the adrenal gland. Progesterone is secreted by the corpus luteum and acts to prepare the endometrium for the implantation of a fertilized egg. During pregnancy, it is secreted by the placenta to prevent spontaneous abortion and to stimulate the development of mammary tissue to produce milk. Thus, progesterone plays a central role in the reproductive events associated with the establishment and maintenance of pregnancy. Luteinized theca cells of normal ovary secrete progesterone. The determination of progesterone concentrations in the body fluids is of great value for endocrinological investigations in women. This mAb may prove useful in identification of ovarian tumors.

Supplier: Metro

Top-Track™ system increases storage capacity up to 50% and maximizes the usable storage area in a given space.

Supplier: Prosci

This antibody recognizes a protein of 25-26kDa, identified as the Bcl-2 alpha oncoprotein. It shows no cross-reaction with Bcl-x or Bax. Expression of Bcl-2 alpha oncoprotein inhibits the programmed cell death (apoptosis). In most follicular lymphomas, neoplastic germinal centers express high levels of the protein, whereas the normal or hyperplastic germinal centers are negative. Consequently, Bcl-2 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 and the small number in which the neoplastic cells are negative.

Supplier: Prosci

This antibody recognizes a protein doublet of 20-22kDa, identified as MART-1 (Melanoma Antigen Recognized by T cells 1) or Melan-A. MART-1 is a melanocyte differentiation antigen recognized by autologous cytotoxic T lymphocytes. There are seven other melanoma associated antigens recognized by autologous cytotoxic T cells: MAGE-1, MAGE-3, tyrosinase, gp100, gp75, BAGE-1, and GAGE-1. Subcellular fractionation shows that MART-1 is present in melanosomes and endoplasmic reticulum. This MART-1 antibody labels melanomas and other tumors showing melanocytic differentiation. It is also a useful positive-marker for angiomyolipomas. The antibody does not stain tumor cells of epithelial, lymphoid, glial, or mesenchymal origin.

Supplier: Prosci

This mAb recognizes a protein of ~30kDa, identified as CELA3B (Chymotrypsin like elastase family member 3B), or Elastase 3B. Elastases form a subfamily of serine proteases that hydrolyze many proteins in addition to elastin. Humans have six genes which encode the structurally similar proteins: Elastase 1, 2, 2A, 2B, 3A, and 3B. Unlike other elastases, 3B has little elastolytic activity. Like most of the human elastases, 3B is secreted from the pancreas as a zymogen and, like other serine proteases such as trypsin, chymotrypsin and kallikrein; it has a digestive function in the intestine. Elastase 3B preferentially cleaves proteins after alanine residues. It may also function in the intestinal transport and metabolism of cholesterol. Elastases 3A/B have been referred to as Protease E and as Elastase 1, and excretion of this protein in fecal material is frequently used as a measure of pancreatic function in clinical assays.

Supplier: Avantor Fluid Handling

Versatile gear pump drives for high-accuracy, pulseless fluid delivery – with an intuitive touch-screen interface.

Supplier: Promega Corporation

The HaloLink Protein Array System combines the innovative HaloTag technology, surface engineering and cell-free protein expression systems to enable parallel analysis of multiple protein:protein, protein:drug or protein:nucleic acid interactions.

Supplier: Prosci

Recognizes a protein of 16-27kDa, identified as human interferon-II) (IFN-(II). Its epitope maps between aa112-148 of IFN-II) (total aa172). This mAb is specific for IFN-(II) and does not cross-react with IFN-(I). The site recognized by this mAb is called "site I" and is responsible for the antiviral and anti-proliferative activities of IFN-(II). Epitopes of N27 and N39 mAbs are different and represent a good combination of antibodies to set up an ELISA assay for the quantitation of IFN-(II) after viral infections. The IFN- family consists of 24 or more genes or pseudo-genes. IFN-II) is one of the two distinct families (I and II) of human IFN-. The -interferon are mainly produced by lymphocytes, monocytes, macrophages, and cell lines such as Namalwa and KG1 following induction by viruses, nucleic acids, and glucocorticoid hormones. They are involved in virus resistance on target cells, inhibition of cell proliferation, induction of cytokines and regulation of expression of MHC class I antigens.

Supplier: Prosci

This antibody recognizes a cell surface glycoprotein of 80-95kDa, called CD44, or HCAM, on lymphocytes, monocytes, and granulocytes (Leucocyte Typing Workshop V). Its epitope is resistant to digestion by trypsin and chymotrypsin. The CD44 family of glycoproteins exists in a number of variant isoforms, the most common being the standard 85-95kDa or hematopoietic variant (CD44-s). Higher molecular weight isoforms are described in epithelial cells (CD44-v), which are believed to function in intercellular adhesion and stromal binding. HCAM antibody immunostaining is commonly used for the discrimination of urothelial transitional cell carcinoma in-situ from non-neoplastic changes in the urothelium.

Supplier: Caron Products

Caron's Reach-in CO₂ Incubators are optimized for suspension and scale up cell culture applications that require agitation or shaking so nutrients are distributed throughout the culture media. Ready to accommodate shakers inside, these CO₂ incubators provide optimum environmental conditions for precise and reproducible results.

Supplier: Prosci

This mAb recognizes a protein of ~30kDa, identified as CELA3B (Chymotrypsin like elastase family member 3B), or Elastase 3B. Elastases form a subfamily of serine proteases that hydrolyze many proteins in addition to elastin. Humans have six genes which encode the structurally similar proteins: Elastase 1, 2, 2A, 2B, 3A, and 3B. Unlike other elastases, 3B has little elastolytic activity. Like most of the human elastases, 3B is secreted from the pancreas as a zymogen and, like other serine proteases such as trypsin, chymotrypsin and kallikrein; it has a digestive function in the intestine. Elastase 3B preferentially cleaves proteins after alanine residues. It may also function in the intestinal transport and metabolism of cholesterol. Elastases 3A/B have been referred to as Protease E and as Elastase 1, and excretion of this protein in fecal material is frequently used as a measure of pancreatic function in clinical assays.

Supplier: Promega Corporation

Accessories for Maxwell® 16 Instrument for Nucleic Acid and Protein Purification, Promega

Supplier: Prosci

ACTH (or Corticotropin) is a 39 amino acid active peptide produced by the anterior pituitary. This mAb is specific to CLIP (aa 25-39) and does not react with Synacthen (aa 1-24). POMC (pro-opiomelanocortin or corticotropin-lipotropin) is a 267 amino acid polypeptide hormone precursor that goes through extensive, tissue-specific posttranslational processing by convertases. POMC is cleaved into ten hormone chains named NPP, ACTH, alpha-MSH (Melanocyte Stimulating Hormone), beta-MSH, gamma-MSH, CLIP (corticotropin-like intermediary peptide), Lipotropin-beta, Lipotropin-gamma, beta-endorphin and Met-enkephalin. ACTH is also produced by cells of immune system (T-cells, B-cells, and macrophages) in response to stimuli associated with stress. Anti-ACTH is a useful marker in classification of pituitary tumors and the study of pituitary disease. It reacts with ACTH-producing cells (corticotrophs). It also may react with other tumors (e.g. some small cell carcinomas of the lung) causing paraneoplastic syndromes by secreting ACTH.

Supplier: Prosci

This antibody recognizes a protein of 25-26kDa, 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: Prosci

Adiponectin (commonly called ADIPO, or by the gene name ADIPOQ) is an adipocytokine, a hormone produced in adipose tissue. It is abundantly present in plasma and has insulin like effect on glucose levels in the blood. Plasma ADIPO levels are low in insulin resistant patients who are obese, have diabetes mellitus type 2 or HIV-lipodystrophy. In women, levels tend to be higher than in men, which may be due to androgens suppressing ADIPO levels. Furthermore, adiponectin and leptin are both indicated in regulating body weight through direct action on the hypothalamus, influencing appetite. Obese people have low ADIPO levels while levels in anorexia patients are high. Adiponectin acts as ligand for various receptors, two of which have been identified, one probably involved in carbohydrate assimilation, the other in tuning the rate of metabolism.

Supplier: Justrite

Going beyond protection and compliance, AccuFlow™ Type II Safety Cans provide fast, precision pouring when handling flammable liquids. Patented, innovative manifold automatically vents for smooth, glug-free liquid flow, while the comfortable Safe-Squeeze® trigger offers maximum control when pouring. A 9" (229mm) flexible metal hose offers targeted pouring into small openings. Quick-fill port with ergonomically designed lever handle makes filling easier than ever. Protection features include a long lasting, stainless steel flame arrester that dissipates heat to prevent flashback ignition and a gasketed, self-closing leakproof that automatically vents to guard against rupture or explosion. Warning label with extra large ID zone permits user to identify contents, department location, or individual user name. All can sizes have extra capacity for mixing in additives for two cycle engines.

Supplier: VWR International

Advanced magnetic hotplate stirrers are designed to deliver accurate and repeatable results in all research, academic, and industrial applications. With temperature ranges up to 500 °C and stirring speeds reaching 1600 rpm, the VWR® hotplate stirrers provides proper mixing and superior temperature control. Available in three sizes and a choice of two top plate materials.

Supplier: Prosci

ACTH (or Corticotropin) is a 39 amino acid active peptide produced by the anterior pituitary. This mAb is specific to CLIP (aa 25-39) and does not react with Synacthen (aa 1-24). POMC (pro-opiomelanocortin or corticotropin-lipotropin) is a 267 amino acid polypeptide hormone precursor that goes through extensive, tissue-specific posttranslational processing by convertases. POMC is cleaved into ten hormone chains named NPP, ACTH, alpha-MSH (Melanocyte Stimulating Hormone), beta-MSH, gamma-MSH, CLIP (corticotropin-like intermediary peptide), Lipotropin-beta, Lipotropin-gamma, beta-endorphin and Met-enkephalin. ACTH is also produced by cells of immune system (T-cells, B-cells, and macrophages) in response to stimuli associated with stress. Anti-ACTH is a useful marker in classification of pituitary tumors and the study of pituitary disease. It reacts with ACTH-producing cells (corticotrophs). It also may react with other tumors (e.g. some small cell carcinomas of the lung) causing paraneoplastic syndromes by secreting ACTH.

Supplier: Promega Corporation

The Kinase-Glo Luminescent Kinase Assays are homogeneous non-radioactive systems for determining the activity of purified kinases by quantifying the amount of ATP remaining in solution following a kinase reaction.

Supplier: HONEYWELL INTERNATIONAL INC MX

Karl Fischer titration is applied to multifarious substances. The nuances in sample properties influence the Karl Fischer titration differently. There are a number of ways to adjust the working conditions.

Supplier: Prosci

The antibody recognizes a single chain glycoprotein of 105/120kDa, identified as CD30/Ki-1. CD30 is synthesized as a 90kDa precursor, which is processed in the Golgi complex into a membrane-bound phosphorylated mature 105/120kDa glycoprotein. In Hodgkin’s disease, CD30 antigen is expressed by mononuclear-Hodgkin and multinucleated Reed-Sternberg cells. It is also expressed by the tumor cells of a majority of anaplastic large cell lymphomas as well as by a varying proportion of activated T and B cells. This antibody distinguishes large cell lymphomas derived from activated lymphoid cells from histiocytic malignancies and lymphomas derived from resting and precursor lymphoid cells or from anaplastic carcinomas. About one third of the CD30 positive lymphomas lack the leukocyte common antigen (CD45).

Supplier: Labconco

Cell logic Class II, Type A2 Biosafety Cabinets (BSCs) offer comprehensive personnel, product and environmental protection from hazardous particulates, including risk group agents requiring BSL 1-4 containment. Cell logics are designed to meet the specific needs of cell research. Models feature a modified sash to accommodate a microscope and/or a temperature-controlled work area on the work surface to maintain cell viability. All models ensure the highest standard of safety and performance.

Supplier: Labconco

Fully-featured, energy-efficient fume hoods provide an environmentally-friendly solution to ducted fume hoods while simplifying installation.

Supplier: VWR International

Designed for applications requiring exceptional accuracy, stability, and repeatability, these hotplate-stirrers are equipped with superior heating and mixing capabilities. With temperature ranges up to 500 °C and stirring speeds reaching 1600 rpm, the VWR® hotplate-stirrers are equipped to handle any research, academic and industrial application. Available in two sizes.

Supplier: Labconco

Fully-featured, energy-efficient fume hoods provide an environmentally-friendly solution to ducted fume hoods while simplifying installation.

Supplier: Invitrogen

The Thermo Scientific Imject Maleimide-Activated BSA Spin Kit contains stabilized, lyophilized Maleimide-Activated BSA (in PBS with stabilizer) and accessory components to easily prepare ready-to-use immunogens for immunization.

Supplier: Prosci

This antibody recognizes proteins of 80-200kDa, identified as different members of the CEA (Carcinoembryonic Antigen) family. CEA is synthesized during development in the fetal gut and is re-expressed in increased amounts in intestinal carcinomas and several other tumors. This antibody does not react with nonspecific cross-reacting antigen (NCA) and with human polymorphonuclear leucocytes. The antibody shows no reaction with a variety of normal tissues and is suitable for staining of formalin/paraffin tissues. CEA is not found in benign glands, stroma, or malignant prostatic cells. antibody to CEA is useful in detecting early foci of gastric carcinoma and in distinguishing pulmonary adenocarcinomas (60-70% are CEA+) from pleural mesotheliomas (rarely or weakly CEA+). CEA antibody positivity is seen in adenocarcinomas from the lung, colon, stomach, esophagus, pancreas, gallbadder, urachus, salivary gland, ovary, and endocervix.

Supplier: Labconco

Fully-featured, energy-efficient fume hood provides an environmentally-friendly solution to ducted fume hoods while simplifying installation.

Supplier: Sartorius

Entris® II Basic Advanced precision balances feature isoCAL, intuitive graphic touch display and 13 built-in applications. Highly accurate results are guaranteed via the monolithic weigh cell technology. High chemical resistance is ensured by using parts made from hard-wearing PBT, stainless steel and glass. Integrated protection systems increase reliability of weighing results: 3 configurable levels determine valid weighing data and ensure only valid data is transferred to external devices.

Supplier: Prosci

ACTH (or Corticotropin) is a 39 amino acid active peptide produced by the anterior pituitary. This mAb is specific to CLIP (aa 25-39) and does not react with Synacthen (aa 1-24). POMC (pro-opiomelanocortin or corticotropin-lipotropin) is a 267 amino acid polypeptide hormone precursor that goes through extensive, tissue-specific posttranslational processing by convertases. POMC is cleaved into ten hormone chains named NPP, ACTH, alpha-MSH (Melanocyte Stimulating Hormone), beta-MSH, gamma-MSH, CLIP (corticotropin-like intermediary peptide), Lipotropin-beta, Lipotropin-gamma, beta-endorphin and Met-enkephalin. ACTH is also produced by cells of immune system (T-cells, B-cells, and macrophages) in response to stimuli associated with stress. Anti-ACTH is a useful marker in classification of pituitary tumors and the study of pituitary disease. It reacts with ACTH-producing cells (corticotrophs). It also may react with other tumors (e.g. some small cell carcinomas of the lung) causing paraneoplastic syndromes by secreting ACTH.