128539 Results for: "CAFRAMO+LTD+CA&pageNo=10"

Supplier: Prosci

DNA topoisomerases are nuclear enzymes that regulate the topological structure of DNA in eukaryotic cells by transiently breaking and rejoining DNA strands. Due to their roles in DNA replication, recombination, and transcription, DNA topoisomerases have been identified as targets of numerous anticancer drugs. Mitochondrial Topo I (DNA topoisomerase I, mitochondrial) is a 601 amino acid protein that primarily acts to relieve DNA strain that may occur during duplication of mitochondrial DNA. As a type IB topoisomerase, mitochondrial Topo I requires a divalent metal, either, calcium or magnesium, as well as an alkaline pH for optimal activity.

Supplier: Prosci

CD74 associates with class II major histocompatibility complex (MHC) and is an important chaperone that regulates antigen presentation for immune response. It also serves as cell surface receptor for the cytokine macrophage migration inhibitory factor (MIF) which, when bound to the encoded protein, initiates survival pathways and cell proliferation. This protein also interacts with amyloid precursor protein (APP) and suppresses the production of amyloid beta (Abeta). Multiple alternatively spliced transcript variants encoding different isoforms have been identified. [RefSeq]

Supplier: Rockland Immunochemical

Dendritic cells (DCs) that control immune responses were recently found to capture and transport HIV from the mucosal area to remote lymph nodes, where DCs hand over HIV to CD4+ T lymphocytes. DCs also amplify the amount of virus and extend the duration of viral infectivity. Multiple strains of HIV-1, HIV-2 and SIV bind to DCs via DC-SIGN. ICAM-3 is the natural ligand for DC-SIGN. A DC-SIGN homologue (termed DC-SIGNR, L-SIGN, and DC-SIGN2) was identified recently. DC-SIGN forms a novel gene family with DC-SIGNR and many alternatively spliced isoforms of DC-SIGN and DC-SIGNR. The expression of DC-SIGN was found in mucosal tissues including placenta, small intestine, and rectum.

Supplier: Promega Corporation

Full-length recombinant human CK1 alpha 1 was expressed by baculovirus in Sf9 insect cells using an N-terminal GST tag. CK1 alpha 1 is a member of the CK1 family of serine/threonine protein kinases, which play an important role in diverse cell processes.

Supplier: Prosci

Voltage-gated potassium (Kv) channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. This gene encodes a member of the potassium voltage-gated channel subfamily V. This member is identified as a 'silent subunit', and it does not form homomultimers, but forms heteromultimers with several other subfamily members. Through obligatory heteromerization, it exerts a function-altering effect on other potassium channel subunits. This protein is strongly expressed in pancreas and has a weaker expression in several other tissues.

Supplier: Avantor Fluid Handling

Versatile washdown pumps for accurate fluid delivery – with an intuitive touch-screen interface.

Supplier: VWR International

This thermometer’s recorder output jack provides a 1mV signal per degree, which enables it to be used with any chart recorder, strip recorder, or computer that accepts millivolt signals.

Supplier: WORLD PRECISION INSTRUMENTS LLC

EVOM™ Manual replaces EVOM3, EVOM2 and ERS-2.

Supplier: Globe Scientific

Globe Glass™ media bottles are designed with a wide mouth for ease of filling, dispensing, and pipetting. A drip-free pour ring and autoclavable polyethylene (PE) screw cap enable the sterilization of media and reagents. Globe Glass™ media bottles are available in sizes ranging from 50 to 10000 ml.

Supplier: Electron Microscopy Sciences

Nominal calibrated dimensions: 300 or 700 nm.

Supplier: Electron Microscopy Sciences

This specimen serves to measure in multiple ways, including medium resolutions, astigmatism, and image shift in scanning electron microscopes while using a single specimen. The notably high atomic number of tin gives the spheres high contrast when compared to the carbon substrate, thus facilitating backscattered electron performance testing. The magnification reduction ability of the specimen allows for initial focusing at low accelerating voltages.

Supplier: Tosoh Bioscience

These silica- and polymer-based columns are ideal for reversed-phase applications such as pharmaceutical drugs, forensic compounds, derivatised amino acids, carbohydrates, steroids, lipids and fatty acids. Depending on their molecular weight, peptides may be analysed with the 80 to 140 Å silica-based columns, while proteins require a larger pore size column (200 to 300 Å).

Supplier: ANTIBODIES.COM LLC

Human RNA polymerase II CTD repeat YSPTSPS ELISA kit is a 90 minutes sandwich Enzyme-Linked Immunosorbent Assay (sELISA) designed for the in vitro quantitative determination of human RNA polymerase II CTD repeat YSPTSPS in serum, plasma, and other biological fluids.

Supplier: Thermo Fisher Scientific

Thermo Scientific™ TDE Series –80 °C ultra-low temperature (ULT) freezers, powered by the H-Drive system, are designed for efficiency. As a result, the series delivers a foundational ULT experience with the reliability and performance needed to protect your work—and the sustainability to meet global compliance.

Supplier: YSI

YSI MultiLab line meters provide maximum flexibility with smart sensor recognition. The Intelligent Design Sensors (IDS) plug-and-play feature lets you decide the meter's operation. Plug in a pH electrode and its a pH meter; replace with a conductivity probe and its a conductivity meter; same for oxygen--it is that easy!

Supplier: Biotium

Lumitein™ is a luminescent dye designed for detecting proteins in SDS polyacrylamide (SDS-PAGE) gels. It can also be used to detect proteins in native PAGE gels after an additional SDS incubation step. The stain combines excellent sensitivity, exceptional user-friendliness and compatibility with common instruments and downstream analysis.

Supplier: Prosci

PANX1 belongs to the innexin family. Innexin family members are the structural components of gap junctions. This protein and pannexin 2 are abundantly expressed in central nerve system (CNS) and are coexpressed in various neuronal populations. Studies in Xenopus oocytes suggest that this protein alone and in combination with pannexin 2 may form cell type-specific gap junctions with distinct properties.The protein encoded by this gene belongs to the innexin family. Innexin family members are the structural components of gap junctions. This protein and pannexin 2 are abundantly expressed in central nerve system (CNS) and are coexpressed in various neuronal populations. Studies in Xenopus oocytes suggest that this protein alone and in combination with pannexin 2 may form cell type-specific gap junctions with distinct properties.

Supplier: Prosci

TSPAN15 is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. The use of alternate polyadenylation sites has been found for this gene.The protein encoded by this gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. The use of alternate polyadenylation sites has been found for this gene.

Supplier: Prosci

MMP23B is a member of the matrix metalloproteinase (MMP) family, and it is part of a duplicated region of chromosome 1p36.3. Proteins of the matrix metalloproteinase (MMP) family are involved in the breakdown of extracellular matrix in normal physiological processes, such as embryonic development, reproduction, and tissue remodeling, as well as in disease processes, such as arthritis and metastasis.This gene (MMP23B) encodes a member of the matrix metalloproteinase (MMP) family, and it is part of a duplicated region of chromosome 1p36.3. Proteins of the matrix metalloproteinase (MMP) family are involved in the breakdown of extracellular matrix in normal physiological processes, such as embryonic development, reproduction, and tissue remodeling, as well as in disease processes, such as arthritis and metastasis. This gene belongs to the more telomeric copy of the duplicated region.

Supplier: Genetex

Protein Kinase c alpha (PKC alpha) is an 80 kDa member of the conventional group (cPKCs: sensitive to calcium, diacylglycerol, phosphatidylserine and phorbol esters) of the PKC family of serine/ threonine kinases that are involved in a wide range of physiological processes including mitogenesis, cell survival and transcriptional regulation. PKC alpha is an ubiquitously expressed PKC isozyme that has been implicated in the regulation of a broad range of cellular functions including proliferation, differentiation, development, migration, cell-cell adhesion, cell extracellular matrix adhesion, and solute transport. The activation loop threonine (threonine 497 in PKC alpha) of conventional PKCs is phosphorylated by phosphoinositide-dependent kinase-1 (PDK1). This phosphorylation is necessary for the autophosphorylation of threonine 638 in the carboxy-terminus of PKC alpha, a step that is critical for regulating the rate of PKC alpha dephosphorylation and inactivation.

Supplier: STEMCELL Technologies

Interleukin 2 (IL-2) is a monomeric cytokine that was originally identified as a T cell growth factor (Gaffen and Liu). It binds to heterotrimeric receptors consisting of CD25, CD122, and CD132. Upon binding, it activates JAK3-, STAT5-, and AKT-dependent signaling pathways, which results in cellular proliferation and survival (Ma et al.). The majority of IL-2 is secreted by activated CD4+ and CD8+ T cells, although B cells and dendritic cells were found to produce IL-2 in small amounts. IL-2 downregulates immune responses to prevent autoimmunity during thymic development, influences the development of CD4+CD25+ regulatory T cells, and affects development of follicular helper T cells. IL-2 also controls inflammation by inhibiting Th17 differentiation (Banchereau et al.). High IL-2 levels in serum are associated with progression of scleroderma, rheumatoid arthritis, and gastric and non-small cell lung cancer, though no known disease can be directly attributed to the lack or excess of IL-2 (Gaffen and Liu).

Supplier: Peprotech

SPARC/Osteonectin is a secreted, evolutionarily-conserved, collagen-binding glycoprotein that is involved in a variety of cellular activities. It is highly expressed in tissues undergoing morphogenesis, remodeling and wound repair. SPARC/Osteonectin and its related peptides bind to numerous proteins of the extracellular matrix (ECM), affect ECM protein expression, influence cellular adhesion and migration, and modulate growth factor-induced cell proliferation and angiogenesis. SPARC/Osteonectin consists of three domains: an N-terminal acidic region that binds calcium ions with low affinity, a module containing two EF-hand motifs that bind calcium with high affinity, and a cysteine-rich follistatin-like domain. Recombinant Human SPARC/Osteonectin is a glycoprotein containing 286 amino acids that migrates at an apparent MW of 43.7 kDa by SDS-PAGE analysis due to the effect of glycosylation. The calculated molecular weight of Recombinant Human SPARC/Osteonectin is 32.7 kDa.

Supplier: Peprotech

The IL-1 family is comprised of 11 structurally related ligands, including recently re-named IL-36 α (IL-1F6), β (IL-1F8) and γ (IL-1F9). IL-36γ is highly expressed in psoriatic plaques and in tissues containing epithelial cells. IL-36γ signals through the IL-1Rrp2 (IL-1R6) receptor, which is primarily expressed on certain dendritic cells. The interaction of the IL-1Rrp2 receptor with IL-36 ligands induces dendritic cell maturation and activation. IL-36γ also functions as an agonist of NF-κB, and can stimulate the inflammatory response in bronchial epithelial cells. Recombinant Human IL-36γ is a 17.0 kDa protein containing 152 amino acid residues. Manufactured using all Animal-Free reagents.

Supplier: Peprotech

SCF is a hematopoietic growth factor that exerts its activity by signaling through the c-Kit receptor. SCF and c-Kit are essential for the survival, proliferation and differentiation of hematopoietic cells committed to the melanocyte and germ cell lineages. Human SCF manifests low activity on murine cells, while murine and rat SCF are fully active on human cells. The human SCF gene encodes for a 273 amino acid transmembrane protein, which contains a 25 amino acid N-terminal signal sequence, a 189 amino acid extracellular domain, a 23 amino acid transmembrane domain, and a 36 amino acid cytoplasmic domain. The secreted soluble form of SCF is generated by proteolytic processing of the membrane anchored precursor. Recombinant Human SCF is an 18.4 kDa polypeptide containing 165 amino acid residues, which corresponds to the sequence of the secreted soluble form of SCF.

Supplier: Prosci

Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryotic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a putative 39S subunit protein and belongs to the L47P ribosomal protein family. Pseudogenes corresponding to this gene are found on chromosomes 2p, 2q, 5p, and 10q.

Supplier: Rockland Immunochemical

The fragmentation of nuclear DNA is a hallmark of apoptotic cell death. The activities of caspase and nuclease are involved in the DNA fragmentation. Caspase-activated deoxyribonuclease (CAD), also termed DNA fragmentation factor (DFF40), is one such nuclease, and is capable of inducing DNA fragmentation and chromatin condensation after cleavage by caspase-3 of its inhibitor ICAD/DFF45. Caspase and CAD independent DNA fragmentation also exists. Recent studies demonstrated that another nuclease, endonuclease G (EndoG), is specifically activated by apoptotic stimuli and is able to induce nucleosomal fragmentation of DNA independently of caspase and DFF/CAD. EndoG is a mitochondrion-specific nuclease that translocates to the nucleus and cleaves chromatin DNA during apoptosis. The homologue of mammalian EndoG is the first mitochondrial protein identified to be involved in apoptosis in C. elegans . EndoG also cleaves DNA in vitro.

Supplier: Thermo Scientific

Automate solvent-free solid phase micro extraction (SPME) sample preparation by performing sample extraction and enrichment in a single step using Thermo Scientific™ SPME Arrow and SPME Fiber products. These products are used with the Thermo Scientific™ TriPlus RSH™ autosampler prior to gas chromatography (GC) or gas chromatography mass spectrometry (GC/MS) analysis.

Supplier: Transforming Technologies

The ESD Cleanroom Frock is engineered to meet Class 100 cleanroom demands for industries such as microelectronics, semi-conductors, disk drives, laser, and similar industries. Cleanroom Frocks are made with static dissipative fabric to eliminate static on the wearer. Superior workmanship and reliable panel-to-panel continuity makes the 6200 ESD Cleanroom Frock an excellent product to control contamination and static.

Supplier: Prosci

Apoptosis plays a major role in normal organism development, tissue homeostasis, and removal of damaged cells. Disruption of this process has been implicated in a variety of diseases such as cancer (reviewed in 1). Apoptosis is induced by certain cytokines including TNF and Fas ligand of the TNF family through their death domain containing receptors, TNF-R1 and Fas. Several death receptors including DR3, DR4, DR5, and DR6 have been identified. Like TNF-R1, DR6 (also known as TNFRSF21) interacts with death domain containing adapter molecule TRADD. Overexpression of DR6 induces apoptosis and activates NF-kB and JNK. DR6 is widely expressed in human tissues and cell lines (2). Recently, DR6 was found to interact with an amino-terminal fragment of the Beta-amyloid protein (APP) in neurons, activating a caspase 6-dependent apoptotic event leading to axonal degeneration and pruning (3). The doublet observed in the SDS-PAGE is likely due to incomplete removal of the signal sequence.

Supplier: Electron Microscopy Sciences

For TEM and Metallography - Model MC2
The MicroPol™ Polisher is a compact, versatile, electrically controlled, precise mechanical specimen grinder/polisher designed for planar grinding, thinning and polishing of specimen in the fields of nanotechnology, semiconductors, and materials science. The parameters of polishing (speed, load, time, etc.) can be matched according to the properties of the specimen. High quality samples can be prepared with minimal effort by the operator.