381458 Results for: "single-use assemblies"

Supplier: Tonbo Biosciences

The RA3-6B2 antibody reacts with the human and mouse CD45 isoform known as CD45R, or B220, a protein tyrosine phosphatase of 220 kDa. CD45 is one of the most abundant hematopoietic markers, and is expressed on all leukocytes (the Leukocyte Common Antigen, LCA). Various isoforms are generated and expressed in cell-specific patterns, all critical for leukocyte function. In mouse, the CD45R/B220 isoform is predominantly found on B cells, at varying levels on all stages from pro-B cells to activated B cells, and may also be detected on certain T cell and NK cell subsets. It is of note that B220 is not similarly expressed on human B cells, where it appears to be differentiation-specific and therefore expressed on only some B cell subsets. Other forms of CD45 with restricted cellular expression include CD45RA, CD45RB and CD45RO.

Supplier: Prosci

Interleukin-8 (IL-8) was originally discovered as a neutrophil chemotactic and activating factor and is a member of the alpha (CXC) subfamily of chemokines (including also platelet factor 4, GRO, IP-10, etc.). Many cell types, including monocyte/macrophages, T cells, neutrophils, fibroblasts, endothelial cells, keratinocytes, hepatocytes, chondrocytes and various tumor cell lines, produce IL-8 in response to a wide variety of proinflammatory stimuli such as exposure to IL-1, TNF, LPS and viruses. IL-8 has a wide range of other proinflammatory effects. It is a potent chemoattractant for neutrophils and causes degranulation of neutrophil specific granules and azurophilic granules. IL-8 induces expression of the cell adhesion molecules CD11/CD18 and enhances the adherence of neutrophils to endothelial cells and subendothelial matrix proteins. Besides neutrophils, IL-8 is also chemotactic for basophils, T cells and eosinophils. IL-8 has been reported to be a co-mitogen for keratinocytes and was also shown to be an autocrine growth factor for melanoma cells. IL-8 was also reported to be angiogenic both in vivo and in vitro.

Supplier: Rockland Immunochemical

MARCH8 (c-MIR) is a novel E3 ubiquitin ligase designated as the modulator of immune recognition (MIR) family, whose catalytic domain is a variant RING domain (RING-CH domain). MARCH8 was found as a functional and structural homolog of KSHV MIR1 and MIR2. MARCH8 targets B7-2 to lysosomal degradation and down-regulates the B7-2 surface expression through ubiquitination of its cytoplasmic tail. Furthermore, MARCH8 has been shown to down-regulate the expression of transferrin receptor and Fas, an important molecule for the induction of apoptosis. MARCH8 is the first example of an E3 ubiquitin ligase that is capable of inhibiting MHC II expression. Recent findings suggest that MARCH8 may regulate immune responses by promoting ubiquitination of MHC-II and CD86, leading to their subsequent endocytosis and lysosomal degradation.

Supplier: Prosci

Interleukin-21 (IL-21) is a key factor in the transition between innate and adaptive immune responses secreted by activated T cells. The IL-21 receptor (IL-21R) is expressed in lymphoid tissue, in particular by NK, B, T and dendritic cells, macrophages and endothelial cells. Recent evidence suggests that IL-21 plays a supportive role in the proliferation of T and B cells and influences the cytolytic activity of natural killer cells. IL-21 has been shown to up-regulate genes associated with innate immunity and to inhibit the differentiation of naive T helper cells. IL-21 specifically inhibits IFN-gamma production from developing TH1 cells and is preferentially expressed by TH2 cells. Furthermore IL-21 has been identified as a growth and survival factor for human myeloma cells. IL-21/IL-21R interactions have a unique role in sequentially activating both innate and adaptive immune responses against poorly immunogenic tumors, leading to tumor rejection that is perforin dependent but IFN-gamma independent.

Supplier: Rockland Immunochemical

SYPL2, also known as Mitsugumin 29, was initially identified as a transmembrane protein from the triad junction in skeletal muscle that had significant homology with members of the synaptophysin family. SYPL2 is thought to participate in the excitation-contraction coupling process of skeletal muscle as SYPL2-null mice showed reduced muscle contractile force and altered triad junction structure and increased susceptibility to fatigue of the skeletal muscle. SYPL2 plays a critical role in muscle Ca2+ signaling by regulating the process of store-operated Ca2+ entry and interacts with ryanodine receptor (RyR), thereby influencing intracellular Ca2+ homeostasis through changes in the RyR/Ca2+ release function. Co-expression of SYPL2 and RyR in cultured cells leads to apoptotic cell death resulting from the depletion of Ca2+ from the intracellular stores.

Supplier: Rockland Immunochemical

Toll-like receptors (TLRs) are evolutionarily conserved pattern-recognition molecules resembling the toll proteins that mediate antimicrobial responses in Drosophila. These proteins recognize different microbial products during infection and serve as an important link between the innate and adaptive immune responses. The TLRs act through adaptor molecules such as MyD88 and TIRAP to activate various kinases and transcription factors so the organism can respond to potential infection. TLR5 recognizes flagellin from both Gram-positive and Gram-negative bacteria and will cause the activation of NF-kB, leading to the activation of TNF-a and other cytokines. A common TLR5 stop codon polymorphism that disrupts TLR5 signaling is associated with susceptibility to Legionnaires'disease and demonstrates the importance of TLR5 in the innate immune response.

Supplier: Prosci

CK10 is expressed in all suprabasal layers of the epidermis. In the epidermis, expression of CK10 strictly parallels the extent of differentiation; it is absent in the basal layer, appears in the first suprabasal layers and increases in concentration towards the granular layer. However, CK10 is rarely detected in early stages of vulvar squamous carcinomas (tumors less than 2 cm, clinical stage I) regardless of the tumor grade. In larger and more advanced tumors (greater than 2 cm, clinical stages II and III), CK10 is detected very frequently. Expression of CK10 is related to maturation of malignant keratinocytes, being preferentially detected in more-differentiated parts.

Supplier: Rockland Immunochemical

Phosphatidate phosphatase (PAP) plays important role in lipid-signaling metabolism in eukaryotic cells. Two distinct types of PAP (PAP1 and PAP2) activity have been distinguished by their subcellular localization and differential sensitivity to N-ethylmaleimide (NEM) and Mg2+. A yeast diacylglycerol pyrophosphate (DGPP) phosphatase (DPP1) and mammalian DGPP phosphatase (PAP2) have been identified as Mg2+-independent and NEM-insensitive membrane-associated. PPAPDC1A (also known as DPPL2) and PPAPDC1B (DPPL1) form a novel type of Mg2+-independent and NEM-sensitive mammalian phosphatidate phosphatase showing broad substrate specificity. Knockdown experiments indicated that this protein is involved with multiple cell signaling pathways, including the JAK-Stat3, MAP kinase, and PKC pathways. PPAPDC1B may also potentiate the estrogen receptor pathway by down-regulating DUSP22.

Supplier: Rockland Immunochemical

TGF-beta is a ubiquitously expressed cytokine that signals through the Smad protein family to regulate numerous cellular processes such as embryonic development and tumorigenesis. This signaling is negatively regulated by Ski, the mammalian homolog of the transforming protein of an avian retrovirus that induces oncogenic transformation of chicken embryo cells, and the related protein SnoN. Like Ski, SnoN functions by binding to the Smad proteins and preventing their phosphorylation, thereby inhibiting their ability to bind DNA and activate the transcription of downstream genes. SnoN is located primarily in the nucleus in cancer tissues or cells, but in the cytoplasm in normal tissues or primary epithelial cells. There are at least four alternately spliced isoforms of SnoN; SnoN antibody will recognize all isoforms (SnoN, SnoN2, SnoI, and SnoA).

Supplier: Rockland Immunochemical

Ribosomal protein S6 kinase 1 (RPS6K1) is the best characterized effector of the mammalian Target of Rapamycin (TOR), an evolutionarily conserved serine/threonine kinase that regulates cell growth and cell cycle through its ability to integrate signals from nutrient levels and growth factors. Nutrients and growth factors stimulate a complex including TOR, raptor (regulatory associated protein of TOR), and GbetaL to phosphorylate RPS6K1 and the eukaryotic initiation factor 4E binding protein (4EBP1), leading to increased protein synthesis and cell growth. RPS6K1 is thought to desensitize tissues to insulin as mice deficient in RPS6K1 have been shown to be hypersensitive to insulin and impervious to obesity-induced insulin resistance seen in wild type obese mice.

Supplier: Prosci

CD79a is required in cooperation with CD79b for initiation of the signal transduction cascade activated by binding of antigen to the B-cell antigen receptor complex (BCR) which leads to internalization of the complex, trafficking to late endosomes and antigen presentation. Also required for BCR surface expression and for efficient differentiation of pro- and pre-B-cells. Stimulates SYK autophosphorylation and activation. Binds to BLNK, bringing BLNK into proximity with SYK and allowing SYK to phosphorylate BLNK. Also interacts with and increases activity of some Src-family tyrosine kinases. Represses BCR signaling during development of immature B-cells. [UniProt]

Supplier: Eppendorf

The CryoCube® F101h ULT freezers offers a personal storage solution in a convenient package. The compact design means the unit will fit below a standard laboratory bench so samples are always securely close-at-hand. F101h has two inner compartments for storing for up to 6 racks/60 boxes giving space for up to 6000 vessels (1.5 ml). These freezers with efficient and reliable 2-stage compressor systems help reduce energy consumption, which helps to lower costs. Energy consumption: (–70/–80 ℃): 4.6/6.3 KWh/day.

Supplier: Zymo Research

The DNA/RNA Shield™ fecal collection tube is powered by the DNA/RNA shield sample stabilization reagent, which takes a microbial snapshot of a sample, inactivates viruses, and makes samples safe and transport ready. Samples are stable at ambient temperature and can be frozen for longer-term storage.

Supplier: Prosci

VPREB1 belongs to the immunoglobulin superfamily and is expressed selectively at the early stages of B cell development, namely, in proB and early preB cells. This gene encodes the iota polypeptide chain that is associated with the Ig-mu chain to form a molecular complex which is expressed on the surface of pre-B cells. The complex is thought to regulate Ig gene rearrangements in the early steps of B-cell differentiation.CD179a (VpreB) is a 126 aa-long polypeptide with apparent MW of 16-18 kDa. It is expressed selectively at the early stages of B cell development, namely, in proB and early preB cells. CD179a has an Ig V domain-like structure, but lacks the last beta-strand (beta7) of a typical V domain. Instead, it has a carboxyl terminal end that shows no sequence homologies to any other proteins. CD179a associates non-covalently with CD179b (lambda5 or lambda-like) carrying an Ig C domain-like structure to form an Ig light chain-like structure, which is called the surrogate light chain or pseudo light chain. In this complex, the incomplete V domain of CD179a appears to be complemented by the extra beta7 strand of CD179b. On the surface of early preB cells, CD179a/CD179b surrogate light chain is disulfide-linked to membrane-bound Ig mu heavy chain in association with a signal transducer CD79a/CD79b heterodimer to form a B cell receptor-like structure, so-called preB cell receptor (preBCR). Though no CD179a-related human disease or pathology has been reported yet, the deficiency of other components of preB cell receptor such as CD179b, Ig mu heavy chain and CD79a has been shown to result in severe impairment of B cell development and agammaglobulinemia in human. PreBCR transduces signals for: 1) cellular proliferation, differentiation from the proB cell to preB cell stage, 2) allelic exclusion at the Ig heavy chain gene locus, and 3) promotion of Ig light chain gene rearrangements. Thus, preBCR functions as a checkpoint in early B cell development to monitor the production of Ig mu heavy chain through a functional rearrangement of Ig heavy chain gene as well as the potency of Ig mu heavy chain to associate with Ig light chain. Publication Note: This RefSeq record includes a subset of the publications that are available for this gene. Please see the Entrez Gene record to access additional publications.

Supplier: VWR International

The VWR® Advanced 3500 Orbital Shaker is designed for a wide range of applications including cell cultures that require accurate and repeatable results. The microprocessor control provides consistent uniform shaking while safely ramping the set speed.

Supplier: Prosci

Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. The ribosomal protein is a component of the 60S subunit. The protein, which is the functional equivalent of the E. coli L10 ribosomal protein, belongs to the L10P family of ribosomal proteins. It is a neutral phosphoprotein with a C-terminal end that is nearly identical to the C-terminal ends of the acidic ribosomal phosphoproteins P1 and P2. The P0 protein can interact with P1 and P2 to form a pentameric complex consisting of P1 and P2 dimers, and a P0 monomer. Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 60S subunit. The protein, which is the functional equivalent of the E. coli L10 ribosomal protein, belongs to the L10P family of ribosomal proteins. It is a neutral phosphoprotein with a C-terminal end that is nearly identical to the C-terminal ends of the acidic ribosomal phosphoproteins P1 and P2. The P0 protein can interact with P1 and P2 to form a pentameric complex consisting of P1 and P2 dimers, and a P0 monomer. The protein is located in the cytoplasm. Transcript variants derived from alternative splicing exist; they encode the same protein. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome.Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 60S subunit. The protein, which is the functional equivalent of the E. coli L10 ribosomal protein, belongs to the L10P family of ribosomal proteins. It is a neutral phosphoprotein with a C-terminal end that is nearly identical to the C-terminal ends of the acidic ribosomal phosphoproteins P1 and P2. The P0 protein can interact with P1 and P2 to form a pentameric complex consisting of P1 and P2 dimers, and a P0 monomer. The protein is located in the cytoplasm. Transcript variants derived from alternative splicing exist; they encode the same protein. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome.

Supplier: Rockland Immunochemical

As the nervous system of a complex organism develops, it establishes functional networks through the growth and retraction of synaptic connections from growing axons and dendrites. This synaptic remodeling involves neuro-transmitter signaling, activation of neurotrophin receptors and alterations in gene expression. One such gene whose expression is increased by neural activity is neuritin, a GPI-anchored protein that is expressed in postmitotic differentiating neurons of the developing nervous system. Its expression is also induced by the neurotrophins BDNF and NT-3. Purified recombinant neuritin promotes neurite outgrowth and arborization in primary embryonic neuronal cultures, suggesting that neuritin may play a role as a downstream effector of activity-induced neurite outgrowth. More recent experiments have shown that neuritin is required for the androgen-induced axonal elongation in motor neurons and is upregulated following spinal cord injury, suggesting that neuritin may also play a role in survival and axonal regeneration.

Supplier: Rockland Immunochemical

Upon entry into mitosis, the cell's microtubule (MT) network forms the mitotic spindle, allowing the segregation of paired chromosomes. Proteinaceous structures on centromeric chromatin termed kinetochores (KT) are essential for the proper attachment of the chromosomes to the spindle MTs. A recently discovered spindle and kinetochore complex, comprised of proteins SKA1, SKA2, and SKA3, has been found to be required for stable KT-MT interactions and timely anaphase onset. Depletion of either SKA1 or SKA2 by siRNA results in the loss of both proteins from the KT, but does not impact overall KT structure. Cells depleted of the SKA complex undergo a prolonged checkpoint-dependent delay in a metaphase-like state, indicating the importance of the SKA complex in the maintenance of the metaphase plate and spindle checkpoint silencing. SKA2 has also been shown to interact with glucocorticoid receptors and to be involved in glucocorticoid signaling and cell proliferation.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.

Supplier: Prosci

Interleukin-21 (IL-21) is a key factor in the transition between innate and adaptive immune responses secreted by activated T cells. The IL-21 receptor (IL-21R) is expressed in lymphoid tissue, in particular by NK, B, T and dendritic cells, macrophages and endothelial cells. Recent evidence suggests that IL-21 plays a supportive role in the proliferation of T and B cells and influences the cytolytic activity of natural killer cells. IL-21 has been shown to up-regulate genes associated with innate immunity and to inhibit the differentiation of naive T helper cells. IL-21 specifically inhibits IFN-gamma production from developing TH1 cells and is preferentially expressed by TH2 cells. Furthermore IL-21 has been identified as a growth and survival factor for human myeloma cells. IL-21/IL-21R interactions have a unique role in sequentially activating both innate and adaptive immune responses against poorly immunogenic tumors, leading to tumor rejection that is perforin dependent but IFN-gamma independent.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.

Supplier: Rockland Immunochemical

Susceptibility to tuberculosis (TB) in mice has recently been attributed to the IPR1 gene. IPR1 is a member of the SP100/SP140 family of nuclear body proteins and encodes a leukocyte-specific nuclear body component. The protein can function as an activator of gene transcription and may serve as a nuclear hormone receptor coactivator. Alternative splicing has been observed for this gene and three transcript variants, encoding distinct isoforms, have been identified. SP110 is the closest homolog of the IPR1 protein in humans. The IPR1/Sp110 gene product might play a role in integrating signals generated by intracellular pathogens with mechanisms controlling innate immunity, cell death, and pathogenesis. IPR1/Sp110 is up-regulated after infection with M. tuberculosis and required by Anaplasma phagocytophilum for infection of human promyelocytic cells. Defects in Sp110 are a cause of severely impaired resistance to infection by M. tuberculosis.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.

Supplier: CHI Scientific

The PrimaCell™ system has been developed for the acquisition and growth of primary cells from a variety of different tissue types. Each PrimaCell™ kit has been optimized for each cell type to produce 4-7 times the number of primary cells obtained from published literature protocols. Each kit comes with 100 ml of tissue washing medium, our optimized tissue dissociation system OptiTDS™, 500 ml of growth medium, and enough growth supplements and serum to add to the supplied medium. Kits that require a Fibroblast control system also come with our FibrOut™ kit (added to the growth medium) which reduces or eliminates Fibroblast growth after 2-3 cell growth cycles.