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 main role of the cAMP response element, or CRE, is mediating the effects of Protein Kinase A (PKA) by way of transcription. It is the main binding site of CREB and is responsible for its activation. CRE is at the focus of many extracellular and intracellular signaling pathways, including cAMP, calcium, GPCR (G-protein coupled receptors) and neurotrophins. The cAMP/PKA signaling pathway is critical to numerous life processes and living organisms. In the cAMP/PKA signaling pathway, CREB is activated via phosphorylation of PKA and binds to CRE with a general motif of 5'-TGACGTCA-3'. Since CRE is a modulator of the cAMP/PKA signaling pathway, it allows the effects of various inhibitors to be studied. 产品介绍 The CRE/CREB Transient Pack is designed to provide the tools necessary for transiently transfecting and monitoring the activity of the cAMP/PKA signaling pathway in cultured cells. The kit contains transfection-ready vectors containing firefly luciferase as a cAMP/PKA pathway-responsive reporter and constitutively expressing Renilla luciferase as a transfection control. It also includes the Dual Luciferase detection reagents to detect both luciferase activities and specialized medium for growing and assaying HEK293 cells. The key to the CRE/CREB Transient Pack is the CRE/CREB luciferase reporter vector, which is a cAMP/PKA Cell Signaling Pathway-responsive reporter. This reporter contains the firefly luciferase gene under the control of multimerized cAMP response elements (CRE) located upstream of a minimal promoter. Elevation of the intracellular cAMP level activates cAMP response element binding protein (CREB) to bind CRE and induces the expression of luciferase. The CRE reporter is premixed with constitutively-expressing Renilla (sea pansy) luciferase vector that serves as an internal control for transfection efficiency. The kit also includes a non-inducible firefly luciferase vector premixed with the constitutively-expressing Renilla luciferase vector as a negative control. The non-inducible luciferase vector contains the firefly luciferase gene under the control of a minimal promoter, but without any additional response elements. The negative control is critical to determining pathway-specific effects and background luciferase activity. Additionally, the pack includes cell culture medium (BPS Medium 1) that has been optimized for use with HEK293 cells*. BPS Medium 1 includes MEM medium, 10% fetal bovine serum, 1% non-essential amino acids, sodium pyruvate, and 1% Pen/Strep. Finally, the pack provides the Dual Luciferase (Firefly-Renilla) Assay System. These luciferase reagents provide highly sensitive, stable detection of firefly luciferase activity and Renilla luciferase activity. The dual luciferase reagents can be used directly in cells in growth medium, and can be detected with any luminometer; automated injectors are not required. * Other mammalian cell lines may also be used, but an alternate cell culture medium may be required for optimal cell growth.
询价背景介绍 The stress-activated protein kinase/c-jun N-terminal kinase (SAPK/JNK) family of proteins includes mitogen-activated protein kinases (MAPKs) that are activated by stress, inflammatory cytokines, mitogens, oncogenes, and inducers of cell differentiation and morphogenesis. Upon activation of the SAPK/JNK pathway, MAP Kinase Kinases phosphorylate and activate JNKs. The activated JNKs translocate to the nucleus where they phosphorylate and activate transcription factors such as c-Jun. The activated c-Jun forms homodimers or heterodimers with fos family proteins which bind to the activator protein-1(AP1) response element and induce target gene transcription. 产品介绍 The AP1 Transient Pack is designed to provide the tools necessary for transiently transfecting and monitoring the activity of the JNK signaling pathway and the transcriptional activity of AP1 in cultured HEK293 cells. The kit contains transfection-ready vectors containing firefly luciferase as a JNK pathway-responsive reporter and constitutively expressing Renilla luciferase as a transfection control. It also includes the Dual Luciferase detection reagents to detect both luciferase activities and specialized medium for growing and assaying HEK293 cells. The key to the AP1 Transient Pack is the AP1 luciferase reporter vector. This reporter contains the firefly luciferase gene under the control of multimerized AP1 responsive elements located upstream of a minimal promoter. The AP1 reporter is premixed with a constitutively-expressing Renilla luciferase vector that serves as an internal control for transfection efficiency. The pack also includes a non-inducible firefly luciferase vector premixed with constitutively- expressing Renilla luciferase vector as a negative control. The non-inducible luciferase vector contains the firefly luciferase gene under the control of a minimal promoter, without any additional response elements. The negative control is critical for determining pathway-specific effects and the background luciferase activity. Additionally, the pack includes cell culture medium (BPS Medium 1) that has been optimized for use with HEK293 and HeLa cells*. BPS Medium 1 includes MEM medium, 10% fetal bovine serum, 1% non-essential amino acids, sodium pyruvate, and 1% Pen/Strep. Finally, the pack provides the Dual Luciferase (Firefly-Renilla) Assay System. These luciferase reagents provide highly sensitive, stable detection of firefly luciferase activity and Renilla luciferase activity. The dual luciferase reagents can be used directly in cells in growth medium, and can be detected with any luminometer; automated injectors are not required. *Note: the kit may be used with other cell lines than HEK293 or HeLa, but an alternate cell culture medium may be required for optimal cell growth
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 GAL4 Transient Pack is designed to provide the tools necessary for transiently transfecting and monitoring the activity of the glucocorticoid signaling pathway in cultured HEK293 cells. The kit contains transfection-ready vectors containing firefly luciferase as a glucocorticoid pathway-responsive reporter and constitutively expressing Renilla luciferase as a transfection control. It also includes the Dual Luciferase detection reagents to detect both luciferase activities and specialized medium for growing and assaying HEK293 cells. The key to the GAL4 Transient Pack is the expression vector for the glucocorticoid receptor ligand binding domain that is fused to the DNA binding domain (DBD) of GAL4 (GAL4 DBD-GR). 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. The GAL4/UAS reporter is premixed with constitutively expressing Renilla (sea pansy) luciferase vector, which serves as an internal positive control for transfection efficiency. The pack also includes a non-inducible firefly luciferase vector premixed with constitutively-expressing Renilla luciferase vector as a negative control. The non-inducible luciferase vector contains a firefly luciferase gene under the control of a minimal promoter, but without any additional response elements. The negative control is critical for determining pathway-specific effects and background luciferase activity. Additionally, the pack includes cell culture medium (BPS Medium 1) that has been optimized for use with HEK293 cells*. BPS Medium 1 includes MEM medium, 10% fetal bovine serum, 1% non-essential amino acids, sodium pyruvate, and 1% Pen/Strep. Finally, the pack provides the Dual Luciferase (Firefly-Renilla) Assay System. These luciferase reagents provide highly sensitive, stable detection of firefly luciferase activity and Renilla luciferase activity. The dual luciferase reagents can be used directly in cells in growth medium, and can be detected with any luminometer; automated injectors are not required. *Note: the kit may be used with other cell lines than HEK293, but an alternate cell culture medium may be required for optimal cell growth.
询价背景介绍 The JAK (Janus kinase) /STAT (Signal Transducer and Activator of Transcription) pathway is activated by various cytokines and growth factors and plays a critical role in cell growth, hematopoiesis, and immune response. In mammals, there are four JAKs (JAK1, JAK2, JAK3 and TYK2) and seven STAT proteins. Interferon alpha (IFNα) is a Type I interferon. Binding of IFNα to its receptor leads to the activation of JAK1 and TYK2, which in turn phosphorylate and activate STAT1 and STAT2. The phosphorylated STAT1 and 2 form a heterodimer and bind to IRF9/p48, forming a protein complex ISGF3. This complex translocates to the nucleus and binds to the ISRE (Interferon Stimulated Response Element) in the promoter region thereby promoting transcription of interferon-inducible genes. 产品介绍 The ISRE Transient Pack is designed to provide the tools necessary for transiently transfecting and monitoring the activity of Type I interferon-induced JAK/STAT signaling pathway in cultured HEK293 cells. The pack contains transfection-ready vectors containing firefly luciferase as a JAK/STAT pathway-responsive reporter and constitutively expressing Renilla luciferase as a transfection control. It also includes the Dual Luciferase detection reagents to detect both luciferase activities and specialized medium for growing and assaying HEK293 cells. The key to the ISRE Transient Pack is the ISRE luciferase reporter vector, which is a JAK/STAT pathway-responsive reporter. This reporter contains a firefly luciferase gene under the control of multimerized ISRE responsive element located upstream of a minimal promoter. The ISRE reporter is premixed with constitutively-expressing Renilla luciferase vector, which serves as an internal control for transfection efficiency. The pack also includes a non-inducible firefly luciferase vector premixed with constitutively-expressing Renilla luciferase vector as a negative control. The non-inducible luciferase vector contains a firefly luciferase gene under the control of a minimal promoter, without any additional response elements. The negative control is critical to determining pathway specific effects and background luciferase activity. Additionally, the pack includes cell culture medium (BPS Medium 1) that has been optimized for use with HEK293 cells*. BPS Medium 1 includes MEM medium, 10% fetal bovine serum, 1% non-essential amino acids, sodium pyruvate, and 1% Pen/Strep. Finally, the pack provides the Dual Luciferase (Firefly-Renilla) Assay System. These luciferase reagents provide highly sensitive, stable detection of firefly luciferase activity and Renilla luciferase activity. The dual luciferase reagents can be used directly in cells in growth medium, and can be detected with any luminometer; automated injectors are not required. *Note: the kit may be used with other cell lines than HEK293, but an alternate cell culture medium may be required for optimal cell growth.
询价产品介绍 The CD40:CD40L TR-FRET Assay is designed to measure the inhibition of CD40 binding to CD40L in a homogeneous 384 reaction format. This FRET-based assay requires no time-consuming washing steps, making it especially suitable for high throughput screening applications. The assay procedure is straightforward and simple; a sample containing biotinylated CD40, CD40L, anti-His Tb donor, dye-labeled acceptor, and an inhibitor is incubated for two hours. Then, the fluorescence intensity is measured using a fluorescence reader.
询价产品介绍 The CD40:CD40L[Biotinylated] Inhibitor Screening Assay Kit is designed for screening and profiling inhibitors of CD40:CD40L signaling. This kit comes in a convenient 96-well format, with biotin-labeled CD40, purified CD40L, streptavidin-labeled HRP, and assay buffer for 100 binding reactions. The key to this kit is the high sensitivity of detection of biotin-labeled CD40 by streptavidin-HRP. Only a few simple steps on a microtiter plate are required for the assay. First, CD40L is coated on a 96-well plate. Next, CD40 is incubated with CD40L on the plate. Finally, the plate is treated with streptavidin-HRP followed by addition of an HRP substrate to produce chemiluminescence, which can be measured using a chemiluminescence reader.
询价背景介绍 Deubiquitinases (DUBs) play important roles in pathways that are dysregulated in cancer, such as DNA repair, cell growth, and apoptosis. This makes DUBs attractive potential drug targets for many cancers and neurodegenerative diseases. Ubiquitin-specific-processing proteases (USPs) are the largest class of DUBs. USP7, also known as herpesvirus-associated ubiquitin-specific protease (HAUSP), acts as a tumor suppressor by stabilizing p53 tumor suppressor as well as a regulator of gene expression in herpes simplex virus (HSV) and Epstein-Barr virus (EBV) infections. 产品介绍 The USP7 Inhibitor Screening Assay Kit is designed to measure USP7 activity for screening and profiling applications. The USP7 Inhibitor Screening Assay Kit comes in a convenient format, with a 96-well plate, fluorogenic, ubiquitinated substrate, assay buffer, and purified USP7 enzyme for 96 enzyme reactions. USP7 is incubated with a sample containing assay buffer and Ub-AMC Substrate, and then the plate is read, measuring fluorescence using a fluorescence reader.
询价产品介绍 Human LIN28B, also known as Lin-28 Homolog B, with N-terminal FLAG-Avi-Tag, GenBank Accession No. NM_001004317, a.a. 2-250 (end), expressed in a HEK293 cell expression system. MW = 30 kDa.
询价产品介绍 Human LIN28A, also known as Lin-28 Homolog A, with N-terminal FLAG-Avi-Tag, GenBank Accession No. NM_024674, a.a. 2-209 (end), expressed in a HEK293 cell expression system. MW = 26 kDa.
询价
