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Description:
This MAb reacts with a 200 kDa protein, identified as heavy sub-unit of neurofilaments (NF-H). Neurofilaments make up the main structural elements of axons and dendrites and are found in neurons, peripheral nerves, and sympathetic ganglion cells. Neurofilaments consist of three major subunits with molecular weights of 68 kDa (NF-L), 160 kDa (NF-M) and 200 kDa (NF-H). Anti-neurofilament stains a number of neural, neuroendocrine, and endocrine tumors. Neuromas, ganglioneuromas, gangliogliomas, ganglioneuroblastomas, and neuroblastomas stain positively for anti-neurofilament. Neurofilaments are also present in paragangliomas as well as adrenal and extra-adrenal pheochromocytomas. Carcinoids, neuroendocrine carcinomas of the skin, and oat cell carcinomas of the lung also express neurofilament.
Description:
In Western blotting, this antibody recognizes proteins in MW range of 265-400 kDa, identified as different glycoforms of EMA. EMA may provide a protective layer on epithelial cells against bacterial and enzyme attack. In immunohistochemical assays, it superbly stains routine formalin/paraffin carcinomas. Antibody to EMA is useful as a pan-epithelial marker for detecting early metastatic loci of carcinoma in bone marrow or liver.
Description:
Recognizes a 53 kDa protein, identified as the Ornithine Decarboxylase (ODC-1). ODC is the initial and rate-limiting enzyme in the biosynthetic pathway of polyamines and is involved in the conversion of ornithine to putrescine. The biological activity of ODC-1 is rapidly induced in response to virtually all agents known to promote cell proliferation including hormones, drugs, growth factors, mitogens, and tumor promoters. Reportedly, ODC mRNA levels are elevated in lung carcinomas as well as in colon adenomas and carcinomas. ODC activity in colorectal carcinomas is greater than those in adenomas and normal mucosa.
Description:
Probenecid is commonly used to inhibit organic-anion transporters located in the cell membrane. Such transporters can extrude dyes and indicators and thus contribute to low signal or high background in assays due to poor cellular retention of dyes. The use of probenecid to block the efflux of intracellular dyes was first described by Di Virgilio et al. (1990), and it has been used with a wide range of anionic dyes and conjugates.
Description:
Ce kit est conçu pour mesurer les activités de luciférine de luciole et de <i>rénilla</i> dans des tests de cellules transfectées. La luciférine de luciole est largement utilisée en tant que rapporteur pour étudier la régulation et la fonction des gènes, ainsi que pour le criblage pharmaceutique. C’est un rapporteur génétique très sensible en raison de l’absence d’activité luciférine endogène dans les cellules ou les tissus de mammifères. La luciférine de <i>rénilla</i> a été utilisée comme gène rapporteur pour étudier la régulation et la fonction des gènes <i>in vitro</i> et <i>in vivo</i>. Elle est couramment utilisée dans les tests multiplexeurs de transcription ou comme contrôle de normalisation de la transfection pour les tests de luciférine de luciole.
Description:
The Yeast Viability Staining Kit is a fluorescent assay to determine yeast viability. Each kit contains two fluorescent components: CF® Dye-labeled Concanavalin A (Con A) and Live-or-Dye™ viability dye. Biotium offers 3 different color combinations to choose from.
Description:
Polyclonal anti-GST reacts with glutathione-S transferase (GST), a common expression tag used in molecular biology. This conjugate is prepared by labeling polyclonal goat anti-GST IgG (H+L) with CF™640R dye. CF™640R (Ex/Em 642/662 nm) is a novel far-red rhodamine-based dye spectrally similar to Cy®5 and Alexa Fluor® 647. CF™640R is much brighter than Cy®5 and at least as bright as Alexa Fluor® 647 when excited at 633 or 635 nm. However, the most important advantage of CF™640R is its exceptional photostability.
Alexa Fluor® is a registered trademark of Thermo Fisher Scientific. Cy®5 is a registered trademark of GE Healthcare.
Description:
Polyclonal anti-RFP reacts with red fluorescent protein (RFP from Discosoma spp.) and its variants. To minimize cross-reactivity, the antibody has been adsorbed against human, mouse and rat serum proteins. This conjugate is prepared by labeling polyclonal rabbit anti-RFP IgG (H+L) with CF™640R dye. CF™640R (Ex/Em 642/662 nm) is a novel far-red rhodamine-based dye spectrally similar to Cy®5 and Alexa Fluor® 647. CF™640R is much brighter than Cy®5 and at least as bright as Alexa Fluor® 647 when excited at 633 or 635 nm. However, the most important advantage of CF™640R is its exceptional photostability.
Alexa Fluor® is a registered trademark of Thermo Fisher Scientific. Cy®5 is a registered trademark of GE Healthcare.
Description:
Fluorescein-12-dUTP can be used to synthesize fluorecently labeled DNA probes for in-situ hybridization, microarray or blotting techniques.
Description:
Goat anti-human IgA reacts specifically with IgA heavy chains (α chains) and not with immunoglobulin light chains. To minimize crossreactivity, it has been adsorbed human IgG prior to conjugation. This conjugate is labeled with CF™488A dye. CF™ dyes offer advantages in brightness, photostability, and specificity compared to other fluorescent dyes. Green fluorescent CF™488A (Ex/Em 490/515 nm) is a superior alternative to FITC (or fluorescein) owing to its exceptional brightness and photostability.
Alexa Fluor® is a registered trademark of Thermo Fisher Scientific.
Description:
This product is prepared by labeling highly cross-adsorbed donkey anti-goat IgG (H+L) with the blue fluorescent dye CF™405M. CF™405M is spectrally similar to and as bright as Pacific Blue® dye but is significantly more photostable than the latter. An additional advantage of CF™405M is that it has less spillover in the 525/50 green channel than Pacific Blue® dye due to narrower emission peak, making CF™405M a superior choice in multi-color detection applications. To minimize cross-reactivity, the antibody has been adsorbed against chicken, guinea pig, Syrian hamster, horse, human, mouse, rabbit, and rat serum proteins.
Pacific Blue® is a registered trademark of Thermo Fisher Scientific.
Description:
Smooth muscle myosin heavy chain (SM-MHC) is a cytoplasmic structural protein, which is a major component of the contractile apparatus in smooth muscle cells. Expression of smooth muscle myosin is developmentally regulated, appearing early in smooth muscle development, and is specific for smooth muscle development. Two isoforms of smooth muscle myosin heavy chain have been identified, designated MHC-1 and MHC-2. The antibody may be useful for the study of breast tumors as the presence of an intact layer of myoepithelial cells is an important feature, which may distinguish benign breast lesions and carcinoma in situ from invasive tumors.
Description:
This antibody recognizes an antigen associated with the nuclear membrane in human cells. It can be used to stain the nuclear membrane in cell or tissue preparations and can be used as a marker of the nuclear membrane in subcellular fractions. It produces a ring pattern around the nucleus of cells of normal and malignant cells and may be used to stain the nuclear membrane of cells in fixed or frozen tissue sections. It can be used with paraformaldehyde fixed frozen tissue or cell preparations and formalin fixed, paraffin-embedded tissue sections.,The nuclear envelope (also known as the perinuclear envelope, nuclear membrane, nucleolemma or karyotheca) is the double membrane of the nucleus that encloses genetic material in eukaryotic cells. It separates the contents of the nucleus (DNA in particular) from the cytosol (cytoplasm). Numerous nuclear pores are present on the nuclear envelope to facilitate and regulate the exchange of materials (for example, proteins and RNA) between the nucleus and the cytoplasm. The space between the two membranes that make up the nuclear envelope is called the perinuclear space (also called the perinuclear cisterna), and is usually about 20 - 40 nm wide. Each of the two membranes is composed of a lipid bilayer. The outer membrane is continuous with the rough endoplasmic reticulum. The inner membrane is erected upon the nuclear lamina, a network of intermediate filaments made of lamin, that plays a role in mitosis and meiosis. The type of lamins present are A, B1, B2, and C. The nuclear envelope may also play a role in the disposition of chromatin inside the nucleus. The lamina acts as a site of attachment for chromosomes. It also acts like a shield for the nucleus. During prophase in mitosis, the chromatids begin condensing to form chromosomes, and the nuclear envelope begins to disintegrate. During metaphase, the nuclear envelope is completely disintegrated, and the chromosomes can be pulled apart as chromatids by the spindle fibers.
Description:
Smooth muscle myosin heavy chain (SM-MHC) is a cytoplasmic structural protein, which is a major component of the contractile apparatus in smooth muscle cells. Expression of smooth muscle myosin is developmentally regulated, appearing early in smooth muscle development, and is specific for smooth muscle development. Two isoforms of smooth muscle myosin heavy chain have been identified, designated MHC-1 and MHC-2. The antibody may be useful for the study of breast tumors as the presence of an intact layer of myoepithelial cells is an important feature, which may distinguish benign breast lesions and carcinoma in situ from invasive tumors.
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