129574 Results for: "cell+culture+serum&pageNo=10&view=easy"

Supplier: Immunoreagents

TRITC (Tetramethylrhodamine isothiocyanate) is a popular rhodamine derivative pink in color but emits a red-orange color upon Emission at 580nm. TRITC is frequently paired with FITC in double labeling experiments and conjugated antibodies are often used in immunofluorescence microscopy, flow cytometry, FLISA (fluorescent ELISA) and high throughput screening assays. These conjugates are best excited with the 532 nm spectral line of the He-Ne laser and are also recommended as a second color detection reagent in in situ hybridization applications. (Excitation/Emission = 555nm / 580nm Emission Color = Orange to Red (Similar Dyes: Alexa Fluor 555, Cy3, DyLight 550)

Supplier: Rockland Immunochemical

Caspases are a family of cysteine proteases that can be divided into the apoptotic and inflammatory caspase subfamilies. Unlike the apoptotic caspases, members of the inflammatory subfamily are generally not involved in cell death but are associated with the immune response to microbial pathogens. Members of this subfamily include caspase-1, -4, -5, and -12. Activation of these caspases results in the cleavage and activation of proinflammatory cytokines such as IL-1b and IL-18. Caspase-4 was initially identified as a homologous protein to Caspase-1 and the C. elegans Ced-3 which could induce apoptosis in transfected cells. More recent studies have shown that it can be activated by ER stress and has been suggested to be involved in multiple neuronal pathologies such as Alzheimer's disease.

Supplier: Rockland Immunochemical

Signals from most growth factors and cytokines are transduced by receptor tyrosine kinases or non-receptor tyrosine kinases. Activated tyrosine kinases phosphorylate their substrates, which mediate the cellular response to extracellular stimuli. A long-sought major substrate termed p62dok (downstream of tyrosine kinase) for many tyrosine kinases including c-kit, v-abl, v-Fps, v-Src, v-Fms, and activated EGF, PDGF, IGF, VEGF and insulin receptors was identified recently from human and mouse by several laboratories. Upon phosphorylation, p62dok forms a complex with the ras GTPase-activating protein (RasGAP). p62dok represents a new family with very recently identified p56dok.

Supplier: Prosci

ELISA: In a sandwich ELISA (assuming 100 uL/well), a concentration of 4.0-8.0 ug/mL of this antibody will detect at least 100 pg/mL of recombinant human TGFbeta1 when used in conjunction with compatible secondary reagents. Western Blot: To detect hTGFbeta1 by Western Blot analysis this antibody can be used at a concentration of 2.0-4.0 ug/mL. Used in conjunction with compatible secondary reagents the detection limit for recombinant hTGFbeta1 is 2.0-4.0 ng/lane, under non-reducing conditions. In a dot blot, a 1:500 dilution of this antibody exhibited complete cross reactivity with human TGFbeta2 and TGFbeta3 isotypes. Reduced cross reactivity was shown at a 1:1000 dilution.

Supplier: MP Biomedicals

CellMaxx™ Bovine Albumin is chromatographically purified from New Zealand-sourced bovine plasma in an ISO quality system assuring complete traceability and consistent high quality. This albumin has very low endotoxin and low IgG to simplify downstream purification, is tested for the absence of viruses according to 9CFR and has the highest possible biosafety level. The albumin supports growth of stem cells and increases protein production from hybridoma cells.

Supplier: Immunoreagents

TRITC (Tetramethylrhodamine isothiocyanate) is a popular rhodamine derivative pink in color but emits a red-orange color upon Emission at 580nm. TRITC is frequently paired with FITC in double labeling experiments and conjugated antibodies are often used in immunofluorescence microscopy, flow cytometry, FLISA (fluorescent ELISA) and high throughput screening assays. These conjugates are best excited with the 532 nm spectral line of the He-Ne laser and are also recommended as a second color detection reagent in in situ hybridization applications. (Excitation/Emission = 555nm / 580nm Emission Color = Orange to Red (Similar Dyes: Alexa Fluor 555, Cy3, DyLight 550)

Supplier: Immunoreagents

The ImmunoReagents' DyLight® 488 conjugates provide exceptional performance for a wide array of fluorescence-base applications at a lower cost than other 488-range dyes. DyLight® 488 shows greater photostability than traditional fluorescein-based dyes and has a greater range of pH insensitivity (pH 4-9). DyLight® 488 conjugates are available for use in fluorescence microscopy, flow cytometry, Western blotting, ELISA, high-content screening and other array platforms. Excitation/Emission = 493nm / 518nm Emission Color = Green (Similar Dyes: Alexa Fluor 488, Cy2, FITC)

Supplier: Immunoreagents

TRITC (Tetramethylrhodamine isothiocyanate) is a popular rhodamine derivative pink in color but emits a red-orange color upon Emission at 580nm. TRITC is frequently paired with FITC in double labeling experiments and conjugated antibodies are often used in immunofluorescence microscopy, flow cytometry, FLISA (fluorescent ELISA) and high throughput screening assays. These conjugates are best excited with the 532 nm spectral line of the He-Ne laser and are also recommended as a second color detection reagent in in situ hybridization applications. (Excitation/Emission = 555nm / 580nm Emission Color = Orange to Red (Similar Dyes: Alexa Fluor 555, Cy3, DyLight 550)

Supplier: Immunoreagents

TRITC (Tetramethylrhodamine isothiocyanate) is a popular rhodamine derivative pink in color but emits a red-orange color upon Emission at 580nm. TRITC is frequently paired with FITC in double labeling experiments and conjugated antibodies are often used in immunofluorescence microscopy, flow cytometry, FLISA (fluorescent ELISA) and high throughput screening assays. These conjugates are best excited with the 532 nm spectral line of the He-Ne laser and are also recommended as a second color detection reagent in in situ hybridization applications. (Excitation/Emission = 555nm / 580nm Emission Color = Orange to Red (Similar Dyes: Alexa Fluor 555, Cy3, DyLight 550)

Supplier: Prosci

IL-36Ra/IL-1F5 is a highly and a specific antagonist of the IL-1 receptor-related protein 2-mediated response to IL-36alpha (IL-1F6), IL-36beta (IL-1F8) and IL-36gamma (IL-1F9). These cytokines bind to IL-36R (IL-1Rrp2) and IL-1RAcP, activating similar intracellular signals as IL-1. IL-36Ra inhibits the production of proinflammatory cytokines, including IL-12, IL-1beta, IL-6, TNF-alpha and IL-23 induced by IL-36 in BMDC and CD4 T cells. Skin and dendritic cells are target of the IL-36 interleukins leading to a Th1 response. Recently mutations that affect the levels and the activity of IL-36Ra have been found in patients with pustular psoriasis, leading to enhanced production of inflammatory cytokines (IL-8 in particular) by keratinocytes.

Supplier: Prosci

Insulin-growth factor-like gene family is a new family of proteins consisting of four proteins in humans (IGFL1 to 4) and one in mice (mIGFL). mIGFL is expressed in normal skin in mice and further upregulated during inflammation responses in skin or after skin wounding. In human only IGFL1 expression is increased in psoriatic skin samples. mIGFL and human IGFL1 and 3 interact with specificity and high affinity to a novel receptor named IGF-like family receptor 1 (formerly TMEM-149). Analysis of the amino acid sequence of IGFLR1 indicated that this receptor is likely a novel member of the TNF-R family. IGFLR1 is expressed most abundantly on mouse T cells, suggesting that mIGFL and IGFL1 produced in the skin may potentially exert regulatory functions on T cell responses.

Supplier: Prosci

The protein encoded by COPS5 is one of the eight subunits of COP9 signalosome, a highly conserved protein complex that functions as an important regulator in multiple signaling pathways. The structure and function of COP9 signalosome is similar to that of the 19S regulatory particle of 26S proteasome. COP9 signalosome has been shown to interact with SCF-type E3 ubiquitin ligases and act as a positive regulator of E3 ubiquitin ligases. This protein is reported to be involved in the degradation of cyclin-dependent kinase inhibitor CDKN1B/p27Kip1. It is also known to be an coactivator that increases the specificity of JUN/AP1 transcription factors.

Supplier: Peprotech

EGF Receptor (EGFR, ErbB1) is a transmembrane protein that exerts tyrosine kinase activity upon ligand-induced activation. EGFR can be activated by binding EGF, or at least six other structurally related protein ligands, including TGFα, HB-EGF, Betacellulin (BTC), Amphiregulin, Epiregulin, and Epigen. Upon activation, EGFR initiates a signaling cascade, which includes dimerization and internalization, tyrosine phosphorylation, DNA synthesis of target genes and, ultimately, cell proliferation. EGFR signaling plays a role in the growth and differentiation of normal cells, but elevated EGFR activity is correlated with the development and pathogenesis of certain cancers. Recombinant Human EGF Receptor (EGFR) is a 621 amino acid glycoprotein comprising the extracellular domain of EGFR, and migrates at an apparent MW of 97.5 kDa by SDS-PAGE analysis under reducing conditions.

Supplier: Peprotech

Selectins are a family of calcium-dependent type 1 transmembrane proteins. Endothelial (E)-selectin is a heavily glycosylated transmembrane protein expressed by activated endothelial cells in microvascular linings. E-selectin, along with P-selectin and L-selectin, initiate recruitment of circulating leukocytes from blood to sites of inflammation in the vascular lining through interaction with specific cell surface-associated carbohydrate determinants. E-selectin consists of an N-terminal type 1 lectin domain, an EGF-like domain, 6 sushi (CCP/SCR) domains, a transmembrane sequence, and a short cytoplasmic domain. Recombinant Human E-selectin is a 58.6 kDa protein containing 535 amino acid residues, corresponding to the extracellular portion of the full length protein. Due to glycosylation, E-selectin migrates at an apparent molecular weight of approximately 65-85 kDa by SDS-PAGE analysis under reducing conditions.

Supplier: Peprotech

IL-13 is an immunoregulatory cytokine produced primarily by activated Th2 cells, and also by mast cells and NK cells. Targeted deletion of IL-13 in mice resulted in impaired Th2 cell development and indicated an important role for IL-13 in the expulsion of gastrointestinal parasites. IL-13 exerts anti-inflammatory effects on monocytes and macrophages and it inhibits the expression of inflammatory cytokines such as IL-1β, TNF-α, IL-6 and IL-8. IL-13 has also been shown to enhance B cell proliferation and to induce isotype switching, resulting in increased production of IgE. Blocking of IL-13 activity inhibits the pathophysiology of asthma. Human and murine IL-13 are cross-species reactive. Recombinant Rat IL-13 a 12.3 kDa protein consisting of 113 amino acid residues.

Supplier: Peprotech

IL-16 is a CD8+ T cell-derived cytokine that induces chemotaxis of CD4+ T cells, CD4+ monocytes, and eosinophils. Analysis by gel filtration suggests that, under physiological conditions, hIL-16 exists predominantly as a noncovalently linked multimer, but that some IL-16 may exist as a monomer. However, only the multimeric form appears to possess chemotactic activity, suggesting that receptor cross-linking may be required for activity. IL-16 also induces expression of IL-2 receptor (IL-2R) and MHC class II molecules on CD4 + T cells. Human and murine IL-16 show significant cross-species reactivity. Recombinant Human IL-16 is a 12.4 kDa protein consisting of 121 amino acid residues.

Supplier: Prosci

Alpha-synuclein is a presynaptic neuronal protein that is thought to be involved in the formation of SNARE complexes. Most significantly, aggregated alpha-synuclein is one of the major components found in the Lewy bodies that occur in Parkinson’s disease (PD) and other neurodegenerative disorders (Okochi et al., 2000). Mutation of the alpha-synuclein gene is associated with familial forms of PD (Newmann et al., 2002). Recent evidence suggests that phosphorylation of alpha-synuclein at ser129 plays a role in the formation of inclusions in PD (Smith et al., 2005; Masliah et al., 2005).

Supplier: Prosci

It recognizes a protein of 70kDa, identified as prolactin receptor. Prolactin is a pituitary hormone involved in the stimulation of milk production, salt and water regulation, growth, development and reproduction. The initial step in its action is the binding to a specific membrane receptor (prolactin receptor), which belongs to the superfamily of class 1 cytokine receptors. The function of the prolactin receptor is mediated, at least in part, by two families of signaling molecules: Janus kinases and signal transducers and activators of transcription.

Supplier: BIOASSAY SYSTEMS

Bright bioluminescent reagent system for rapid quantitation of luciferase reporter gene expression in transfected cells and high-throughput drug screens

Supplier: DRG International

An enzyme immunoassay for the quantitative measurement of estradiol in serum and plasma.

Supplier: Prosci

This gene encodes a weak acid-active hyaluronidase. The encoded protein is similar in structure to other more active hyaluronidases. Hyaluronidases degrade hyaluronan, one of the major glycosaminoglycans of the extracellular matrix. Hyaluronan and fragments of hyaluronan are thought to be involved in cell proliferation, migration and differentiation. Although it was previously thought to be a lysosomal hyaluronidase that is active at a pH below 4, the encoded protein is likely a GPI-anchored cell surface protein. This hyaluronidase serves as a receptor for the oncogenic virus Jaagsiekte sheep retrovirus. The gene is one of several related genes in a region of chromosome 3p21.3 associated with tumor suppression. This gene encodes two alternatively spliced transcript variants which differ only in the 5' UTR.

Supplier: Bel-Art Products, a Part of SP

Made from optical quality polycarbonate plastic material, these plain form hydrometers are durable and shatterproof making them ideal in situations where rough handling or contamination could be an issue, such as in the food or beverage industries.

Supplier: Foxx Life Sciences

Replace outdated glass vacuum traps with a shatterproof, pre-assembled system.

Supplier: Anaspec Inc

Matrix metalloproteinases (MMPs) belong to a family of secreted or membrane-associated zinc endopeptidases capable of digesting extracellular matrix components. MMP-14 (MT1-MMP), membrane-type MMP, plays an important role in tumor invasion. MMP-14 is expressed on the surface of invasive tumor cells, in stromal cells of human colon, breast, and head and neck carcinomas. MMP-14 is secreted as zymogen with a prodomain, a catalytic domain, a hinge region, a hemopexin-like domain, and a transmembrane domain. It can activate pro-MMP-23 and degrade a variety of substrates, including fibrillar collagens I, II, III, fibronectin, vitronectin and laminin-1.

A truncated human MMP-14 with His-tag was expressed in E. coli. The Mr on SDS-PAGE is 31-kDa. Incubation with 1 mM APMA at 37°C for 2 hr will activate MMP-14. Its activity can be measured by FRET peptides

Supplier: Brandtech

Oil-free, single-application vacuum systems offer incredibly quiet vacuum operation with electronic or flow control systems and integrated solvent recovery accessories

Supplier: Adipogen

Polo-like kinase 1 (Plk1) is a regulator of the cell cycle that has been implicated in the pathology of many cancers. BI-2536 is a potent and selective small-molecule inhibitor of mammalian Plk1. It has inhibitory activity at subnanomolar concentrations and inhibits tumor growth in multiple tumor lines with IC(50) values below 1µM. BI-2536 also shows an >1,000-fold selectivity for PIK1 versus a large panel of other kinases. BI-2536 also demonstrated low Kd values against sister kinases PLK2 and PLK3. Preclinical studies in human cancer cell lines have shown that BI 2536 disrupts spindle assembly, resulting in mitotic arrest and inducing apoptosis. BI-2536 is currently in clinical trials against several types of solid tumor cancers.

Supplier: Adipogen

Quizartinib (AC220) is a second-generation FLT3 inhibitor that has shown promising activity in AML in Phase II clinical trials. It inhibits mutant and wild-type FLT3 in vivo at 0.1 and 0.5µM, respectively, and has shown favorable activity and tolerability in phase I and II trials in acute myeloid leukemia, with QT prolongation as the dose-limiting toxicity. Recently, AC220 has also been shown to be an effective inhibitor of ATP-binding cassette (ABC) proteins ABCB1 (P-glycoprotein) and ABCG2 (breast cancer resistance protein). Quizartinib inhibited transport of fluorescent ABCG2 and ABCB1 substrates in ABCG2- and ABCB1-overexpressing cells in a concentration-dependent manner, from 0.1 to 5µM and from 0.5 to 10µM, respectively, and inhibited-IAAP photolabeling of ABCG2 and ABCB1 with IC(50) values of 0.07 and 3.3µM, respectively.

Supplier: Adipogen

IL-36Ra/IL-1F5 is a highly and a specific antagonist of the IL-1 receptor-related protein 2-mediated response to IL-36alpha (IL-1F6), IL-36beta (IL-1F8) and IL-36gamma (IL-1F9). These cytokines bind to IL-36R (IL-1Rrp2) and IL-1RAcP, activating similar intracellular signals as IL-1. IL-36Ra inhibits the production of proinflammatory cytokines, including IL-12, IL-1beta, IL-6, TNF-alpha and IL-23 induced by IL-36 in BMDC and CD4 T cells. Skin and dendritic cells are target of the IL-36 interleukins leading to a Th1 response. Recently mutations that affect the levels and the activity of IL-36Ra have been found in patients with pustular psoriasis, leading to enhanced production of inflammatory cytokines (IL-8 in particular) by keratinocytes.

Supplier: DWK Life Sciences (KIMBLE)

Multi-functional glass laboratory bottles with protective safety coating.

Supplier: Prosci

Histones are basic nuclear proteins that are responsible for the nucleosome structure of the chromosomal fiber in eukaryotes. Two molecules of each of the four core histones (H2A, H2B, H3, and H4) form an octamer, around which approximately 146 bp of DNA is wrapped in repeating units, called nucleosomes. The linker histone, H1, interacts with linker DNA between nucleosomes and functions in the compaction of chromatin into higher order structures. This gene is intronless and encodes a member of the histone H2B family. Transcripts from this gene lack polyA tails but instead contain a palindromic termination element. This gene is found in the histone microcluster on chromosome 6p21.33. [provided by RefSeq].