服务平台拥有丰富的技术服务经验，一流的仪器设备，先进的检测手段和严格的质量控制体系，力求为全球药物研发机构提供优质高效的技术服务
背景介绍 The T-REx cell line expresses the tetracycline repressor protein. Cells are transfected with the gene of interest under control of a minimal promoter and the tet operon. The Tet repressor protein binds to the operon and represses transcription. Tetracycline regulation is based on the binding of either tetracycline (or doxycycline) to the Tet repressor protein, which de-represses the promoter controlling expression of the gene of interest. 产品介绍 Recombinant HEK293 cell transfected with tetracycline repressor gene. This cell line is validated for response to the stimulation of doxycycline.
询价背景介绍 Human CD137 (4-1BB; TNFRS9) is an inducible costimulatory molecule that activates T cells. CD137-CD137L mediated signaling has been shown to be important for proliferation, effector functions and survival of T cells. CD137 is also expressed in NK and NKT cells. Antibodies targeting CD137 activation in immune cells have demonstrated potent anti-tumor effects in cancer patients. 产品介绍 Recombinant HEK293 cell constitutively expressing full length human CD137 (Genbank #NM_003811). Surface expression is confirmed by flow cytometry.
询价背景介绍 SIRPα (CD172A, PTPNS1) is a member of the signal-regulatory-protein (SIRP) family, which are transmembrane immunoglobulin receptors that negatively regulate receptor tyrosine kinase-coupled signaling processes. SIRPα is expressed predominantly on macrophages and dendritic cells. Interaction with its ligand CD47 mediates signals that blocks phagocytosis (also known as the "don't eat me" signal). 产品介绍 Recombinant HEK293 cell constitutively expressing full length human SIRPα (#NM_080792). Surface expression is confirmed by flow cytometry.
询价背景介绍 The family of Toll-like receptors (TLRs) acts as primary sensors that detect a wide variety of microbial components and elicit innate immune responses. Human TLR9 recognizes specific unmethylated CpG DNA motifs prevalent in microbial but not vertebrate genomic DNA, leading to innate and acquired immune responses. Stimulation of TLR9 triggers a signaling cascade leading to the activation of the transcription factor NF-κB, which controls the expression of an array of inflammatory cytokine genes. 产品介绍 Recombinant HEK293 cell expressing firefly luciferase gene under the control of NF-κB response elements with constitutive expression of human TLR9 (Toll-like receptor 9, also been designated as CD289, a member of the toll-like receptor (TLR) family. GenBank Accession No. NM_017442)
询价背景介绍 OX40 (CD134) is a co-stimulatory receptor expressed on the surface of CD4+ and CD8+ T cells 24 to 48 hours after activation. Binding of OX40 to its ligand, OX40L (CD252), present on dendritic cells, potentiates T cell survival and increases cytokine production. OX40 has been shown to activate NF-κB-mediated memory cell generation through its interaction with adaptor proteins TRAF2 and TRAF5. OX40 has a critical role in the maintenance of an immune response beyond the first few days and onwards to a memory response. 产品介绍 Recombinant HEK293 stably expressing human OX40 (TNF receptor superfamily member 4, TNFRSF4, ACT35; CD134; IMD16; TXGP1L, GenBank Accession #NM_003327).
询价背景介绍 CTLA4 is a member of the immunoglobulin superfamily. It is expressed by activated T cells and transmits an inhibitory signal to T cells. CTLA4 is homologous to the T-cell co-stimulatory protein, CD28, and both molecules bind to CD80 (B7-1) and CD86 (B7-2) on antigen-presenting cells. CTLA-4 binds CD80 and CD86 with greater affinity and avidity than CD28 thus enabling it to outcompete CD28 for its ligands and act as an "off" switch when bound to CD80 or CD86. Not surprisingly, CTLA-4 is an important drug target for the regulation of the host's response to cancer. 产品介绍 Recombinant HEK293 stably expressing human CTLA4 (Cytotoxic T-Lymphocyte Associated Protein; CD152), GenBank Accession #NM_005214.
询价背景介绍 The binding of Programmed Cell Death Protein 1 (PD-1), a receptor expressed on activated T cells, to its ligands, PD-L1 and PD-L2, negatively regulates immune responses. The PD-1 ligands are found on most cancers, and PD-1:PD-L1/2 interaction inhibits T cell activity and allows cancer cells to escape immune surveillance. The PD-1:PD-L1/2 pathway is also involved in regulating autoimmune responses, making these proteins promising therapeutic targets for a number of cancers, as well as multiple sclerosis, arthritis, lupus, and type I diabetes. 产品介绍 Recombinant HEK293 stably expressing human PD-1 (Programmed Cell Death 1, PDCD1, SLEB2, CD279, GenBank Accession #NM_005018).
询价产品介绍 The GAL4 Reporter (Luc) - HEK293 Cell Line contains a firefly luciferase gene under the control of a multimerized GAL4 upstream activation sequence (UAS) stably integrated into HEK293 cells. The cell line does not contain any exogenous activators of the GAL4 reporter and can be used alongside BPS Cat. #60655 as a control.
询价背景介绍 The glucocorticoid signaling pathway plays an important role in development, fluid homeostasis, cognition, immune response, and metabolism. Glucocorticoids are a class of steroid hormones that bind to the glucocorticoid receptor, causing it to translocate to the nucleus. Upon translocation, the receptor can regulate the transcription of a large number of genes, including those that regulate glucose metabolism and inflammatory responses. 产品介绍 The Glucocorticoid Receptor Pathway GAL4 Reporter (Luc) - HEK293 Cell Line contains a firefly luciferase gene under the control of glucocorticoid receptor ligand binding domain that is fused to the DNA binding domain (DBD) of GAL4 (GAL4 DBD-GR) stably integrated into HEK293 cells. This fusion construct activates firefly luciferase expression under the control of a multimerized GAL4 upstream activation sequence (UAS). This allows for specific detection of glucocorticoid-induced activation of the glucocorticoid receptor without the need for individual transcriptional targets and with low cross-reactivity for other nuclear receptor pathways. This cell line is validated for response to stimulation of dexamethasone and to the treatment with mifepristone, an inhibitor of the glucocorticoid signaling pathway.
询价
