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Ace+Method+Development+Kits
Numéro de catalogue:
(BOSSBS-6627R)
Fournisseur:
Bioss
Description:
The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes one of the ATPase subunits, a member of the triple-A family of ATPases which have a chaperone-like activity. This subunit and a 20S core alpha subunit interact specifically with the hepatitis B virus X protein, a protein critical to viral replication. This subunit also interacts with the adenovirus E1A protein and this interaction alters the activity of the proteasome. Finally, this subunit interacts with ataxin-7, suggesting a role for the proteasome in the development of spinocerebellar ataxia type 7, a progressive neurodegenerative disorder.
UOM:
1 * 100 µl
Numéro de catalogue:
(BOSSBS-10280R-CY3)
Fournisseur:
Bioss
Description:
Members of the GATA family share a conserved zinc finger DNA-binding domain and are capable of binding the WGATAR consensus sequence. GATA-1 is erythroid-specific and is responsible for the regulated transcription of erythroid genes. It is an essential component in the generation of the erythroid lineage. GATA-2 is expressed in embryonic brain and liver, HeLa and endothelial cells, as well as in erythroid cells. Studies with a modified GATA consensus sequence, AGATCTTA, have shown that GATA-2 and GATA-3 recognize this mutated consensus while GATA-1 has poor recognition of this sequence. This indicates broader regulatory capabilities of GATA-2 and GATA-3 than GATA-1. GATA-3 is highly expressed in T lymphocytes. GATA-4, GATA-5 and GATA-6 comprise a subfamily of transcription factors. Both GATA-4 and GATA-6 are found in heart, pancreas and ovary; lung and liver tissues exhibit GATA-6, but not GATA-4 expression. GATA-5 expression has been observed in differentiated heart and gut tissues and is present throughout the course of development in the heart. Although expression patterns of the various GATA transcription factors may overlap, it is not yet apparent how the GATA factors are able to discriminate in binding their appropriate target sites.
UOM:
1 * 100 µl
Numéro de catalogue:
(BOSSBS-0501R-CY5)
Fournisseur:
Bioss
Description:
JNK1(MAPK8) is a member of the MAP kinase family. MAP kinases act as an integration point for multiple biochemical signals, and are involved in a wide variety of cellular processes such as proliferation, differentiation, transcription regulation and development. This kinase is activated by various cell stimuli, and targets specific transcription factors, and thus mediates immediate-early gene expression in response to cell stimuli. The activation of this kinase by tumor-necrosis factor alpha (TNF-alpha) is found to be required for TNF-alpha induced apoptosis. This kinase is also involved in UV radiation induced apoptosis, which is thought to be related to cytochrome c-mediated cell death pathway. Studies of the mouse counterpart of this gene suggested that this kinase play a key role in T cell proliferation, apoptosis and differentiation. Four alternatively spliced transcript variants encoding distinct isoforms have been reported.JNK1 is activated by threonine and tyrosine phosphorylation by either of two dual specificity kinases, MAP2K4 and MAP2K7. The JNK pathway is critically involved in diabetes and levels are abnormally elevated in obesity. The cell-permeable JNK inhibitory peptide may have promise as a therapeutic agent for diabetes.
UOM:
1 * 100 µl
Numéro de catalogue:
(BOSSBS-9235R-CY7)
Fournisseur:
Bioss
Description:
The members of the murine Cdx family (Cdx1, Cdx2, and Cdx4) are members of the caudal-type homeobox family of genes, which are homologues of the Drosophila ‘caudal’ gene required for anterior-posterior regional identity. The intestine-specific transcription factors Cdx1 and Cdx2 are candidate genes for directing intestinal development, differentiation, proliferation and maintenance of the intestinal phenotype. The relative expression of Cdx1 to Cdx2 protein may be important in the anterior to posterior patterning of the intestinal epithelium and in defining patterns of proliferation and differentiation along the crypt-villus axis. Expression of the Cdx1 homeobox gene in epithelial intestinal cells promotes cellular growth and differentiation. Cdx1 positively regulates its own expression. Cdx1 and Cdx2 are expressed in the small intestine and colon of fetus and adult. A decrease in human Cdx1 and/or Cdx2 expression is associated with colorectal tumorigenesis. Both Cdx1 and Cdx2 genes must be expressed to reduce tumorigenic potential, to increase sensitivity to apoptosis and to reduce cell migration, suggesting that the two genes control the normal phenotype by independent pathways. The human Cdx1 gene maps to chromosome 5q31-q33 and encodes a 265-amino acid protein.
UOM:
1 * 100 µl
Numéro de catalogue:
(BOSSBS-9006R-A488)
Fournisseur:
Bioss
Description:
Adenosine deaminase is an enzyme that is present in most tissues and exists predominantly as a monomer, although in some tissues it is associated with adenosine deaminase-binding protein. Adenosine deaminase degrades extracellular adenosine, which is toxic for lymphocytes. A novel family of growth factors that share sequence similarity to adenosine deaminase has been identified. The cat eye syndrome critical region protein (CECR) family includes CECR1, CECR2, CECR3, CECR4, CECR5, CECR6, CECR7, CECR8 and CECR9. The genes encoding CECR proteins are candidates for Cat Eye Syndrome (CES), a developmental disorder associated with the duplication of a 2 Mb region of 22q11.2. CES is characterized by the combination of coloboma of the iris and anal atresia with fistula, downslanting palpebral fissures, preauricular tags and/or pits, frequent occurrence of heart and renal malformations, and normal or near-normal mental development. CECR family members are widely expressed. Specifically, CECR1 has the highest expression in adult heart, lung, lymphoblasts and placenta. CECR2 is also involved in neurulation and chromatin remodeling. Mutations in the CECR2 gene result in neural tube defects.
UOM:
1 * 100 µl
Numéro de catalogue:
(BOSSBS-9006R-A555)
Fournisseur:
Bioss
Description:
Adenosine deaminase is an enzyme that is present in most tissues and exists predominantly as a monomer, although in some tissues it is associated with adenosine deaminase-binding protein. Adenosine deaminase degrades extracellular adenosine, which is toxic for lymphocytes. A novel family of growth factors that share sequence similarity to adenosine deaminase has been identified. The cat eye syndrome critical region protein (CECR) family includes CECR1, CECR2, CECR3, CECR4, CECR5, CECR6, CECR7, CECR8 and CECR9. The genes encoding CECR proteins are candidates for Cat Eye Syndrome (CES), a developmental disorder associated with the duplication of a 2 Mb region of 22q11.2. CES is characterized by the combination of coloboma of the iris and anal atresia with fistula, downslanting palpebral fissures, preauricular tags and/or pits, frequent occurrence of heart and renal malformations, and normal or near-normal mental development. CECR family members are widely expressed. Specifically, CECR1 has the highest expression in adult heart, lung, lymphoblasts and placenta. CECR2 is also involved in neurulation and chromatin remodeling. Mutations in the CECR2 gene result in neural tube defects.
UOM:
1 * 100 µl
Numéro de catalogue:
(BOSSBS-4100R-A555)
Fournisseur:
Bioss
Description:
Functions in mitochondrial and peroxisomal division. Mediates membrane fission through oligomerization into membrane-associated tubular structures that wrap around the scission site to constrict and sever the mitochondrial membrane through a GTP hydrolysis-dependent mechanism. Through its function in mitochondrial division, ensures the survival of at least some types of postmitotic neurons, including Purkinje cells, by suppressing oxidative damage. Required for normal brain development, including that of cerebellum. Facilitates developmentally regulated apoptosis during neural tube formation. Required for a normal rate of cytochrome c release and caspase activation during apoptosis; this requirement may depend upon the cell type and the physiological apoptotic cues. Also required for mitochondrial fission during mitosis. Required for formation of endocytic vesicles. Proposed to regulate synaptic vesicle membrane dynamics through association with BCL2L1 isoform Bcl-X(L) which stimulates its GTPase activity in synaptic vesicles; the function may require its recruitment by MFF to clathrin-containing vesicles. Required for programmed necrosis execution. Isoform 1 and isoform 4 inhibit peroxisomal division when overexpressed.
UOM:
1 * 100 µl
Numéro de catalogue:
(BOSSBS-12520R-A350)
Fournisseur:
Bioss
Description:
Involved in transcriptional activation and repression of select genes by chromatin remodeling (alteration of DNA-nucleosome topology). Belongs to the neural progenitors-specific chromatin remodeling complex (npBAF complex) and the neuron-specific chromatin remodeling complex (nBAF complex). During neural development a switch from a stem/progenitor to a post-mitotic chromatin remodeling mechanism occurs as neurons exit the cell cycle and become committed to their adult state. The transition from proliferating neural stem/progenitor cells to post-mitotic neurons requires a switch in subunit composition of the npBAF and nBAF complexes. As neural progenitors exit mitosis and differentiate into neurons, npBAF complexes which contain ACTL6A/BAF53A and PHF10/BAF45A, are exchanged for homologous alternative ACTL6B/BAF53B and DPF1/BAF45B or DPF3/BAF45C subunits in neuron-specific complexes (nBAF). The npBAF complex is essential for the self-renewal/proliferative capacity of the multipotent neural stem cells. The nBAF complex along with CREST plays a role regulating the activity of genes essential for dendrite growth (By similarity). Binds DNA non-specifically.
UOM:
1 * 100 µl
Fournisseur:
3M Food Safety
Description:
3M™ Petrifilm™ <i>E. coli </i>/ coliform count plates provide a cost effective, convenient and reliable method for testing equipment, raw materials, food products and manufacturing environmental samples.
Numéro de catalogue:
(NOVUNBP2-34287-0.1)
Fournisseur:
Novus Biologicals
Description:
CD45, also known as leukocyte common antigen (LCA), T200, or Ly5, is a member C of the class 1 receptor-like protein tyrosine phosphatase (PTPRC) family (1, 2). It is a transmembrane glycoprotein which, due to alternative splicing, has a multiple isoforms with a theoretical molecular weight ranging from 180 - 220 kDa (1, 3-5). Human CD45 is synthesized as a 1281 amino acid sequence consisting of an alternatively spliced extracellular receptor-like region, a cysteine-rich domain, fibronectin-like III repeats, a transmembrane segment, and a cytoplasmic region with tandem protein tyrosine phosphatase (PTP) domains: the membrane proximal domain (D1) and the membrane distal domain (D2) (3, 5). CD45 is expressed on all nucleated hematopoietic cells and their precursors, except mature red blood cells, and is one of the most abundantly-expressed cell-surface glycoproteins, comprising approximately 10% of surface proteins in lymphocytes (3). Functionally, CD45 is essential for development and activation of T-cells and B-cells (1-5). More specifically, CD45 positively regulates antigen receptor signaling and Src-family member kinase activity (1, 3). There are many ways to regulate CD45 phosphatase activity including ligand binding, dimerization, protein interactions, cellular localization, and covalent modifications (3, 6). Ligands for CD45 include pUL11, a transmembrane protein of the cytomegalovirus RL11 (CMV RL11) family, and placental protein 14 (PP14), both of which exclusively bind CD45, and various lectins including CD22, galectin-1, galectin-3, macrophage mannose receptor (MR), and macrophage galactose-type lectin (MGL) (6).
Given its role in immune cell development and activation, CD45 has also been linked to a variety of diseases. The importance of CD45 in immunity has been revealed in human and mouse studies where CD45-deficiency leads to a severe-combined immunodeficiency (SCID) phenotype (2, 3, 6). A CD45-knockout mice study revealed inhibited thymocyte production and poor B-cell response, whereas CD45 activation in mice causes lymphoproliferation and autoantibody production (3). CD45 variants have been associated with altered immune function and autoimmune disorders including multiple sclerosis, systemic lupus erythematosus (SLE), and rheumatoid arthritis (6). Furthermore, altered CD45 expression has been implicated in oncological conditions including chronic lymphatic leukemia, acute lymphatic leukemia, Hodgkin lymphoma, multiple myeloma, and diffuse large B-cell lymphoma (6). Considering its role in autoimmune disorders, immunodeficiency and cancer, CD45 is an ideal therapeutic target (3, 6). The main approaches to control CD45 function is through either selective inhibitors or anti-CD45 antibodies (3). Alternative names for CD45 includes B220, CD antigen: CD45, CD45 antigen, CD45R, EC 3.1.3.48, GP180, LCA, Leukocyte common antigen, LY5, protein tyrosine phosphatase receptor type c polypeptide, PTPRC, receptor-type tyrosine-protein phosphatase C, T200 Glycoprotein, and T200. References 1. Trowbridge, I. S., & Thomas, M. L. (1994). CD45: an emerging role as a protein tyrosine phosphatase required for lymphocyte activation and development. Annual review of immunology. https://doi.org/10.1146/annurev.iy.12.040194.000505 2. Andersen, J. N., Jansen, P. G., Echwald, S. M., Mortensen, O. H., Fukada, T., Del Vecchio, R., Tonks, N. K., & Moller, N. P. (2004). A genomic perspective on protein tyrosine phosphatases: gene structure, pseudogenes, and genetic disease linkage. FASEB journal : official publication of the Federation of American Societies for Experimental Biology. 3. Hermiston, M. L., Xu, Z., & Weiss, A. (2003). CD45: a critical regulator of signaling thresholds in immune cells. Annual review of immunology. https://doi.org/10.1146/annurev.immunol.21.120601.140946 4. Tonks, N. K., Diltz, C. D., & Fischer, E. H. (1990). CD45, an integral membrane protein tyrosine phosphatase. Characterization of enzyme activity. The Journal of biological chemistry. 5. Nam, H. J., Poy, F., Saito, H., & Frederick, C. A. (2005). Structural basis for the function and regulation of the receptor protein tyrosine phosphatase CD45. The Journal of experimental medicine. https://doi.org/10.1084/jem.20041890 6. Rheinlander, A., Schraven, B., & Bommhardt, U. (2018). CD45 in human physiology and clinical medicine. Immunology letters. https://doi.org/10.1016/j.imlet.2018.01.009
UOM:
1 * 0,1 mg
Fournisseur:
Apollo Scientific
Description:
4-Acetyl-L-phenylalanine 97%
Fournisseur:
Brady
Description:
Méthode sûre et efficace de condamnation des disjoncteurs européens puisqu'ils s'adaptent à la plupart des modèles actuels. Il est recommandé de les utiliser conjointement avec un cadenas pour plus de sécurité.
Fournisseur:
Merck
Description:
Accurate analytic results in UV/Vis and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol® solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol® solvents offer best UV transmittance. In all specifications the minimum transmittance for five typical wavelengths are identified. Furthermore the transmittance is specified in accordance with Reag. Ph. Eur. and ACS.
Numéro de catalogue:
(1.00427.0500)
Fournisseur:
Merck
Description:
Ce milieu de culture correspond au milieu ALOA (Agar Listeria selon Ottaviani et Agosti), un milieu sélectif pour l'isolement de<i> Listeria monocytogenes </i>dans les denrées alimentaires (méthode homologuée AFNOR). Il permet la détection et le dénombrement de <i>Listeria monocytogenes</i> et des Listeria spp. dans les denrées alimentaires et les échantillons d'autres origines. La base riche de l'agar sélectif Chromocult® Listeria permet une très bonne croissance. L'ajout d'inhibiteurs empêche la croissance de la plupart des bactéries, levures et champignons. En revanche, Listeria se développe sans problème sous forme de colonies bleu-vert, le L. formant un halo opaque.
UOM:
1 * 500 g
Fournisseur:
Biotium
Description:
This MAb stains the cytoplasm of macrophages and histiocytes in hematopoietic organs, Kupffer's cells of the liver and Langerhan's cells of the skin. It also stains the mantle zone B-lymphocytes of the lymph node and spleen, spermatogonia, and chief cells of the stomach. S100A9 is expressed by macrophages in acutely inflamed tissues and in chronic inflammation. It is detected in peripheral blood leukocytes, in neutrophils and granulocytes. It is present at sites of vascular inflammation. S100A9 is also expressed in epithelial cells constitutively or induced during dermatoses. S100A9 is a Calcium-binding protein. It has antimicrobial activity towards bacteria and fungi. It is important for resistance to invasion by pathogenic bacteria. It up-regulates transcription of genes that are under the control of NF-kappa-B. S100A9 plays a role in the development of endotoxic shock in response to bacterial lipopolysaccharide (LPS). It promotes tubulin polymerization when unphosphorylated. It also promotes phagocyte migration and infiltration of granulocytes at sites of wounding. It plays a role as a pro-inflammatory mediator in acute and chronic inflammation and up-regulates the release of IL8 and cell-surface expression of ICAM1.
Numéro de catalogue:
(BOSSBS-11769R-A647)
Fournisseur:
Bioss
Description:
The majority of mitochondrial-directed proteins are encoded by the nuclear genome and are transported to the mitochondria via regulated processes involving the mitochondrial Tom and Tim proteins (1). The mitochondrial Tim protein family is comprised of a large group of evolutionarily conserved proteins that are found in most eukaryotes (1,2). Import of nuclear-encoded precursor proteins into and across the mitochondrial inner membrane is mediated by two distinct complexes, the Tim23 complex and the Tim22 complex, which differ in their substrate specificity (1). Defects in Tim proteins are implicated in several neuro-degenerative diseases, suggesting important roles for Tim proteins in development and health (3,4). Tim8A and Tim8B, which map to human chromosomes Xq22.1 and 11q23.1-q23.2, respectively, are conserved proteins of the mitochondrial intermembrane space, which are organized in hetero-oligomeric complex with Tim13 (5,6,7). Tim8A is highly expressed in fetal and adult brain (5). Tim8A is mutated in deafness dystonia syndrome, a novel type of disease that causes severe neurological defects, thought to be caused by a defective mitochondrial protein transport system (5,8).
UOM:
1 * 100 µl
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