124600 Results for: "3+ml+k2edta"

Supplier: Electron Microscopy Sciences

Mirsky’s Fixative™ is a superior fixing agent for use in immunohistological and immunological protocols

Supplier: Prosci

T cell proliferation and lymphokine production are triggered by occupation of the TCR by antigen, followed by a costimulatory signal that is delivered by a ligand expressed on antigen presenting cells. The B7-related cell surface proteins CD80 (B7-1) and CD86 (B7-2) are expressed on antigen presenting cells bind the homologous T cell receptors CTLA-4 (cytotoxic T lymphocyte-associated protein-4) and CD28 and trigger costimulatory signals for optimal T cell activation. CTLA-4 shares 31% overall amino acid identity with CD28 and it has been proposed that CD28 and CTLA-4 are functionally redundant. SLAM is a novel receptor on T cells that, when engaged, potentiates T cell expansion in a CD28-independent manner. B7, also designated BB1, is another ligand or counter receptor for CD28 and CTLA-4 that is expressed on the antigen-presenting cell.

Supplier: Rockland Immunochemical

BICD2 is the second human homolog discovered to the Drosophila Bicaudal-D protein that forms part of the cytoskeleton and mediates the correct sorting of mRNAs for oocyte- and axis-determining factors during oogenesis. Similar to the highly homologous protein BICD1, BICD2 can bind to dynein-dynactin complex, primarily through the dynamitin subunit of dynactin. The C-terminus of BICD2 targets the protein to the Golgi complex while the N-terminal domain of BICD2 co-immunoprecipitates with cytoplasmic dynein, suggesting BICD2 plays a role in the dynein-dynactin interaction on the surface of membranous organelles. Mice engineered to overexpress the BICD2 amino terminal domain in neurons developed amyotrophic lateral sclerosis (ALS)-like features such as Golgi fragmentation, neurofilament swelling in proximal axons, etc., suggesting that impaired dynein/dynactin function may explain some of the pathological features observed in ALS patients.

Supplier: Rockland Immunochemical

DEDAF antibody detects human DEDAF. Apoptosis is related to many diseases and induced by a family of cell death receptors and their ligands. Cell death signals are transduced by death domain (DD) death effector domain (DED), and caspase recruitment domain (CARD) containing molecules. Several molecules including caspases and adaptor FADD contain DEDs. A novel protein that interacts with DED of caspase-8 and 10, and FADD was identified recently and designated DEDAF for DED associated factor. DEDAF is identical to the transcriptional repressor RYBP. DEDAF/RYBP is expressed in multiple tissues and cell lines. DEDAF interacts with FADD and augments the formation of CD95/FADD/capase-8 complexes at the cell membrane, and interacts with DED-containing DNA biding protein (DEDD) in the nucleus indicating it is involved in the regulation of both cytoplasmic and nuclear events of apoptosis. Anti-DEDAF antibodies are ideal for investigators involved in Apoptosis and NFkappaB research.

Supplier: Rockland Immunochemical

CD68, cluster of differentiation, is a 110-kD transmembrane glycoprotein that is highly expressed by human monocytes and tissue macrophages. CD68 is a member of a family of hematopoietic mucin-like molecules that includes leukosialin/CD43 and stem cell antigen CD34. The CD68 gene is mapped to 17p13.1. Immunohistochemistry can be used to identify the presence of CD68, which is found in the cytoplasmic granules of a range of different blood cells. It is particularly useful as a marker for the various cells of the macrophage lineage, including monocytes, histiocytes, giant cells, Kupffer cells, and osteoclasts. This allows it to be used to distinguish diseases of otherwise similar appearance, such as the monocyte/macrophage and lymphoid forms of leukaemia (the latter being CD68 negative). Its presence in macrophages also makes it useful in diagnosing conditions related to proliferation or abnormality of these cells, such as malignant histiocytosis, histiocytic lymphoma, and Gaucher's disease. This antibody is suitable for researchers interested in cancer research.

Supplier: QUALITY BIOLOGICAL, INC.

RPMI 1640 is suitable for a wide range of anchorage independent cells. RPMI 1640 Medium is commonly supplemented with 10% Fetal Bovine Serum (FBS). Although, RPMI-1640 has been shown to support the serum-free growth of a number of cells.

Supplier: ReVacc Scientific

This pseudotyped virus uses recombinant vesicular stomatitis virus (rVSV) to carry the S protein of SARS-CoV-2 (GenBank: MN908947) with multiple mutations initially identified in variant of Omicron BA.2.75. The S has 18-aa cytoplasmic tail truncation for optimal infection.

Supplier: Eppendorf

Eppendorf epT.I.P.S.® BioBased Reloads in 'Biopur' grade innovate with cutting edge eco-friendly design. The tips are made from 90% plant-based material in a reloadable format. They ensure precision and purity, and are ideal for sensitive applications prioritizing environmental responsibility.

Supplier: BioVendor

Urocortin 2 (Ucn 2), also known as stresscopin-related peptide, is a novel predicted neuropeptide related to corticotropin-releasing factor (CRF).

Supplier: Labconco

Glove box features inlet and outlet HEPA filters (99.99% efficiency on 0.3µm particulates) and provides a leak-tight physical barrier to protect the operator from hazardous airborne particulates and powders

Supplier: Prosci

RET (ret proto-oncogene) is a member of the cadherin superfamily and a receptor tyrosine kinase, which are cell-surface molecules that transduce signals for cell growth and differentiation. It can undergo oncogenic activation in vivo and in vitro by cytogenetic rearrangement. Ligands that bind the Ret receptor include the glial cell line-derived neurotropic factor (GDNF) and its congeners neurturin, persephin and artemin. Alterations in the corresponding Ret gene are associated with diseases including papillary thyroid carcinoma, multiple endocrine neoplasia (type 2A and 2B), familial medullary thyroid carcinoma and a congenital developmental disorder known as Hirschsprung抯 disease. The Tyr905 residue located in the Ret kinase domain plays a crucial role in Ret catalytic and biological activity. Substitution of Phe for Tyr905 dramatically inhibits Ret autophosphorylation activity.

Supplier: Genetex

N ethylmaleimide sensitive factor (NSF) is an ~83 kDa protein (predicted MW) which was initially isolated based on its ability to restore intercisternal Golgi transport to N ethylmaleimide treated membranes. NSF was subsequently discovered to be involved in a variety of membrane fusion events. NSF is an ATPase with two ATP binding domains that are essential for membrane fusion and homo oligomerization. In order to interact with target membranes, NSF requires another set of soluble proteins called Soluble NSF attachment proteins (SNAPs). NSF has been shown to play a prominent role in synaptic vesicle fusion. Together with synaptotagmin and a SNAP, NSF modulates the interaction of SNAP25, VAMP, and syntaxin, in an ATP dependent manner, to form a complex with a sedimentation coefficient of 20 S. This complex may represent an intermediate involved in synaptic vesicle docking and fusion.

Supplier: Prosci

CK5 (keratin 5) is a member of the keratin gene family. Biochemically, most members of the CK family fall into one of two classes, type I (acidic polypeptides) and type II (basic polypeptides). The type II cytokeratins consist of basic or neutral proteins which are arranged in pairs of heterotypic keratin chains coexpressed during differentiation of simple and stratified epithelial tissues. This type II cytokeratin is specifically expressed in the basal layer of the epidermis with family member KRT14. The type II cytokeratins are clustered in a region of chromosome 12q12-q13. At least one member of the acidic family and one member of the basic family is expressed in all epithelial cells. Cytokeratin 5 is expressed in normal basal cells. Mutations of the Cytokeratin5 gene (KRT5) have been shown to result in the autosomal dominant disorderepidermolysis bullosa (EB). Defects in KRT5 are a cause of epidermolysis bullosa simplex.

Supplier: Prosci

BRCA1 (Breast cancer type 1 susceptibility protein) is a nuclear phosphoprotein that plays a role in maintaining genomic stability, and it also acts as a tumor suppressor. The encoded protein combines with other tumor suppressors, DNA damage sensors, and signal transducers to form a large multi-subunit protein complex known as the BRCA1-associated genome surveillance complex (BASC). This gene product associates with RNA polymerase II, and through the C-terminal domain, also interacts with histone deacetylase complexes. This protein thus plays a role in transcription, DNA repair of double-stranded breaks, and recombination. Mutations in this gene are responsible for approximately 40% of inherited breast cancers and more than 80% of inherited breast and ovarian cancers. Alternative splicing plays a role in modulating the subcellular localization and physiological function of this gene.

Supplier: Prosci

Recognizes a single chain glycoprotein of 70kDa, identified as CD55 (also known as decay accelerating factor, DAF). This mAb was clustered in Kobe at the Sixth International Workshop on Human Leukocyte Differentiation Antigens as F429D-9 (N-L120). CD55/DAF is widely expressed on cells throughout the body including leukocytes, erythrocytes, epithelium, endothelium, and fibroblasts. It is a Glycosyl phosphatidylinositol anchored (GPI-anchored) member of the membrane bound complement regulatory proteins that inhibit autologous complement cascade activation. It prevents the amplification steps of the complement cascade by interfering with the assembly of the C3-convertases, C4b2a and C3bBb, and the C5-convertase, C4b2a3b and C3bBb3b. CD55 also serves as receptor for CD97 and for echovirus and Coxsackie B virus. Anti-CD55 can be used as marker for paroxysmal nocturnal hemoglobinuria (PNH).

Supplier: Electron Microscopy Sciences

A special mounting media for immunofluorescent staining procedures. It is a water soluble, non-fluorescing medium which is well suited for use when the staining procedure has an aqueous final step. It contains 10% polyvinyl alcohol in phosphate buffered glycerol with 0.1% sodium azide as a preservative.

Supplier: Invitrogen

Thermo Scientific™ Pierce PNPP Substrates are powders, tablets, solutions and complete kits of p-nitrophenyl phosphate, a colorimetric, soluble substrate of alkaline phosphatase for use in ELISA applications

PNPP (p-Nitrophenyl Phosphate, Disodium Sal) is a widely used substrate for detecting alkaline phosphatase in ELISA applications. When alkaline phosphatase and PNPP are reacted, a yellow water-soluble reaction product is formed. This reaction product absorbs light at 405 nm. Pierce PNPP is available in four formats: dry crystalline powder, single-use tablets, a stable substrate solution, and a complete kit containing substrate solution and diethanolamine buffer.

Thermo Scientific Pierce PNPP (p-Nitrophenyl Phosphate, Disodium Salt) is a colorimetric, soluble substrate of alkaline phosphatase for use in ELISA applications. When alkaline phosphatase and PNPP are reacted, a yellow water-soluble reaction product is formed. This reaction product absorbs light at 405 nm.

Supplier: Prosci

CD19 is a transmembrane glycoprotein that contains two extracellular immunoglobulin-like domains. CD19 is present in both benign and malignant B-cells and is considered to be the most reliable surface marker of this lineage over a wide range of maturational stages. In normal lymphoid tissue, CD19 is observed in germinal centers, in mantle zone cells, and in scattered cells of the inter-follicular areas. Anti-CD19 exhibits an overall immunoreactivity pattern similar to those of the antibodies against CD20 and CD22. However, in contrast to CD20, expression of CD19 is continuous throughout B-cell development and through terminal differentiation of B-cells into plasma cells. Anti-CD19 positivity is seen in the vast majority of B-cell neoplasms commonly at a lower intensity than normal B-cell counterparts. Plasma cell neoplasms are nearly always negative, as are T-cell neoplasms.

Supplier: Prosci

Recognizes a protein of 16-27kDa, identified as human Interferon alpha 2 (IFNA2). Its epitope maps between amino acids 43-53 of the IFNA2. This mAb is specific for IFNA2 and does not cross-react with IFNA1. The epitopes of clones N27 and N39 mAbs are different and represent a good combination of antibodies to set up an ELISA assay for the quantitation of IFNA2 after viral infections. The IFNA family consists of 24 or more genes or pseudo-genes. The alpha interferons 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

Reacts with a protein of ~66kDa, identified as bovine serum albumin (BSA). It is a high affinity antibody and can be used for detection of traces of BSA. Bovine serum albumin (BSA) is an abundant plasma protein in cows that is important for maintaining osmotic pressure in blood plasma for proper distribution of body fluids between intravascular compartments and body tissues. BSA is a common buffer component for immunoglobulin type assays due to good solubility characteristics for water, Ca2+, Na+, K+, fatty acids, hormones and bilirubin. BSA makes up about half of the protein in plasma and represents the most stable and soluble protein in the plasma. It is a suitable reagent for laboratories developing immunoassays, mostly due to its availability, solubility and the numerous functional groups present for coupling. The BSA component contains several lysines that are capable of reacting with conjugation sites of linkers, making it applicable as a carrier protein for antigenic compounds.

Supplier: Epredia

p57 Kip2 (or CDKN1C) is a potent tight-binding inhibitor of several G1 cyclin complexes, and is a negative regulator of cell proliferation. The gene encoding human p57 Kip2 is located on chromosome 11p15.5, a region implicated in both sporadic cancers, Wilm's tumor, and Beckwith-Wiedemann syndrome (BWS), a cancer syndrome, making it a tumor suppressor candidate. BWS is characterized by numerous growth abnormalities and an increased risk of childhood tumors. Several types of childhood tumors including Wilms' tumor, adrenocortical carcinoma and rhabdomyosarcoma display a specific loss of maternal 11p15 alleles, suggesting that genomic imprinting plays an important part. This region also contains two other imprinted genes, insulin-like growth factor II (IGF-II) and H19, both of which seem to be implicated in adrenal neoplasms. Positive Control: LS174T cells, Colon CA or placenta; Cellular Localization: Nuclear; Recommended for: Immunohistochemistry (Formalin/paraffin), Western Blotting (Not suitable), Immunoprecipitation (Native verified)

Supplier: Thermo Scientific

Versatility and customization, automate daily 96-and 384-well microplate pipetting tasks with the sealed in security of ClipTip technology.

Supplier: Thermo Fisher Scientific

Store and track robust sample volumes with Thermo Scientific™ Matrix™ 2D Barcoded Glass Storage Tubes.

Supplier: G-Biosciences

G-Biosciences' FOCUS™ Protein Alkylation Kit contains an ultra pure, proteomic grade iodoacetamide reagent for blocking thiols by alkylation in order to prevent the reoxidation of proteins

Supplier: Genetex

In eukaryotic cells the histone methylase SUV39H1 and the methyl-lys binding protein HP1 interact to repress transcription at heterochromatic sites. Lys 9 of histone H3 is methylated by SUV39H1, creating a binding site for the chromo domain of HP1. The Lys methylase activity of SUV39H1 resides in the SET domain.SUV39H1 and HP1 are both involved in the repressive functions of the retinoblastoma (Rb) protein. SUV39H1 cooperates with Rb to repress the cyclin E promoter, and in fibrobroblasts that are disrupted for SUV39, the activity of the cyclin E and cyclin A2 genes are specifcally elevated. Chromatin IPs (ChIPs) show that Rb is necessary to direct methylation of histone H3, and is necessary for binding of HP1 to the cyclin E promoter. The SUV39H1-HP1 complex is thus not only involved in heterochromatic silencing but also has a role in repression of euchromatic genes by Rb and perhaps other co-repressor proteins.

Supplier: Rockland Immunochemical

Apoptosis is related to many diseases and induced by a family of cell death receptors and their ligands. Cell death signals are transduced by death domain (DD)- containing adapter molecules and members of the ICE/CED-3 protease family. A novel ICE/CED-3 protease was identified recently, designated FLICE2 and Mch4 and renamed as caspase-10. Caspase-10 has two death effector domains (DEDs) that bind to the DED in the adapter molecule FADD and recruits both TNFR1 and CD95 to form complexes with these receptors. Caspase-10 is therefore involved in the CD95 and TNFR1 induced apoptosis. Caspase-10 cleaves and activates caspase-3, -4, -6, -7, -8 and -9, which causes the proteolytic cleavage of many key proteins such as PARP. Cleavage of PARP occurs in many different systems during apoptosis and is the hallmark of programmed cell death. Caspase-10 is expressed in many tissues and cell lines.

Supplier: Genetex

The synaptotagmins are integral membrane proteins of synaptic vesicles thought to serve as Ca(2+) sensors in the process of vesicular trafficking and exocytosis. Calcium binding to synaptotagmin participates in triggering neurotransmitter release at the synapse. The first C2 domain mediates Ca(2+)-dependent phospholipid binding. The second C2 domain mediates interaction with Stonin 2. Synaptotagmin may have a regulatory role in the membrane interactions during trafficking of synaptic vesicles at the active zone of the synapse. It binds acidic phospholipids with a specificity that requires the presence of both an acidic head group and a diacyl backbone. A Ca(2+)-dependent interaction between synaptotagmin and putative receptors for activated protein kinase C has also been reported. It can bind to at least three additional proteins in a Ca(2+)-independent manner; these are neurexins, syntaxin and AP2.

Supplier: Genetex

Coronin 1 was first isolated from Dictyostelium, but similar proteins have been identified in many species and individual cell types. The coronin-like protein in yeast promotes actin polymerization and also interacts with microtubules. Dictyostelium mutants lacking coronin are impaired in cytokinesis and all actin-mediated processes. Analysis of coronin-GFP (green-fluorescent protein) fusions and knockout mutants shows that coronin participates in the remodelling of the cortical actin cytoskeleton that is responsible for phagocytosis and macropinocytosis. Likewise, in mammalian neutrophils, a coronin-like protein is also associated with the phagocytic apparatus. Coronin 1 binds actin (by similarity) and is found in noninfected macrophages, localised to the cortical microtubule network; in mycobacteria-infected macrophages, progressively relocalized and retained around the mycobacterial phagosomes. Coronin1/TACO is expressed in brain, thymus, spleen, bone marrow and lymph node. Low expression observed in lung and gut.

Supplier: Rockland Immunochemical

Eph receptors, the largest subfamily of receptor tyrosine kinases (RTKs), and their ephrin ligands are important mediators of cell-cell communication regulating cell attachment, shape, and mobility of neuronal and endothelial cells in central nervous system function and in development. Eph receptors can be divided into two subgroups: EphA and EphB. In mammals, the EphA class consists of eight members (EphA 1-7 and 10) that in general bind to ephrin-A members linked to the cell membrane through a glycosylphosphatidylinositol linkage. The EphB class consists of six members (EphB 1-6) that in general bind ephrin-B members that transverse the cell membrane. The Ephrin / EPH signaling pathway networks with the WNT signaling pathway during embryogenesis, tissue regeneration, and carcinogenesis. Recent studies show that Eph/EFN might be relevant in normal B-cell biology and could represent new potential prognostic markers and therapeutic targets for CLL.

Supplier: Rockland Immunochemical

Disrupted in schizophrenia 1 (DISC1) is a candidate gene for susceptibility to schizophrenia. It was discovered through chromosomal analysis of a large Scottish family whose members exhibited schizophrenia and related psychiatric disorders. Through yeast two-hybrid screening, it was discovered that DISC1 interacts with many members of the centrosome and cytoskeletal system including MAP1A and Nudel. More recently, DISC1 has been found to regulate the transport of a complex containing Nudel, the lissencephaly-1 (LIS1) protein, and 14-3-3epsilon from neuronal cell bodies to the axons by the action of the microtubule-dependent directed motor protein kinesin-1, also known as KIF5A. Decreased expression of DISC1 in neurons caused an accelerated rate of neuronal integration, resulting in aberrant morphological development, suggesting that DISC1 plays a role in dendritic development and synapse formation. DISC1 has at least four known isoforms.