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- 详细信息
- 文献和实验
- 技术资料
- 供应商:
上海联迈生物工程有限公司
- 库存:
大量
- 靶点:
详见说明书
- 级别:
1
- 目录编号:
LM-3492R-FITC
- 克隆性:
多克隆
- 抗原来源:
Rabbit
- 保质期:
1年
- 抗体英文名:
Anti-Phospho-Insulin Receptor Beta (Tyr1355)/FITC
- 抗体名:
Anti-Phospho-Insulin Receptor Beta (Tyr1355)/FITC
- 标记物:
FITC标记
- 宿主:
Human
- 适应物种:
Human
- 免疫原:
详见说明书
- 亚型:
IGg
- 形态:
粉末、液体、冻干粉
- 应用范围:
Flow-Cyt=1:50-200 IF=1:50-200
- 浓度:
1mg/ml
- 保存条件:
-20 °C
- 规格:
100ul
| 英文名称 | Anti-Phospho-Insulin Receptor Beta (Tyr1355)/FITC |
| 中文名称 | FITC标记的磷酸化胰岛素受体β抗体 |
| 别 名 | Insulin Receptor (phospho Y1355); Insulin Receptor (phospho Try1355); CD 220; CD220; CD220 antigen; HHF 5; HHF5; HIR B; INSR; INSR; Insulin receptor; Insulin receptor subunit beta; IR; INSR_HUMAN. |
| 规格价格 | 100ul/2980元 购买 大包装/询价 |
| 说 明 书 | 100ul |
| 产品类型 | 磷酸化抗体 |
| 研究领域 | 肿瘤 细胞生物 免疫学 细胞凋亡 转录调节因子 激酶和磷酸酶 糖尿病 |
| 抗体来源 | Rabbit |
| 克隆类型 | Polyclonal |
| 交叉反应 | Human, |
| 产品应用 | Flow-Cyt=1:50-200 IF=1:50-200 not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. |
| 分 子 量 | 68/152kDa |
| 细胞定位 | 细胞膜 |
| 性 状 | Lyophilized or Liquid |
| 浓 度 | 1mg/ml |
| 免 疫 原 | KLH conjugated Synthesised phosphopeptide derived from human Insulin Receptor alpha around the phosphorylation site of Tyr1355 [RS(p-Y)EE]5 |
| 亚 型 | IgG |
| 纯化方法 | affinity purified by Protein A |
| 储 存 液 | 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. |
| 保存条件 | Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C. |
| 产品介绍 | background: The human insulin receptor is a heterotetrameric membrane glycoprotein consisting of disulfide linked subunits in a beta-alpha-alpha-beta configuration. The beta subunit (95 kDa) possesses a single transmembrane domain, whereas the alpha subunit (135 kDa) is completely extracellular. The insulin receptor exhibits receptor tyrosine kinase (RTK) activity. RTKs are single pass transmembrane receptors that possess intrinsic cytoplasmic enzymatic activity, catalyzing the transfer of the gamma phosphate of ATP to tyrosine residues in protein substrates. RTKs are essential components of signal transduction pathways that affect cell proliferation, differentiation, migration and metabolism. Included in this large protein family are the insulin receptor and the receptors for growth factors such as epidermal growth factor, fibroblast growth factor and vascular endothelial growth factor. Receptor activation occurs through ligand binding, which facilitates receptor dimerization and autophosphorylation of specific tyrosine residues in the cytoplasmic portion. The interaction of insulin with the alpha subunit of the insulin receptor activates the protein tyrosine kinase of the beta subunit, which then undergoes an autophosphorylation that increases its tyrosine kinase activity. Three adapter proteins, IRS1, IRS2 and Shc, become phosphorylated on tyrosine residues following insulin receptor activation. These three phosphorylated proteins then interact with SH2 domain containing signaling proteins. Function: Receptor tyrosine kinase which mediates the pleiotropic actions of insulin. Binding of insulin leads to phosphorylation of several intracellular substrates, including, insulin receptor substrates (IRS1, 2, 3, 4), SHC, GAB1, CBL and other signaling intermediates. Each of these phosphorylated proteins serve as docking proteins for other signaling proteins that contain Src-homology-2 domains (SH2 domain) that specifically recognize different phosphotyrosines residues, including the p85 regulatory subunit of PI3K and SHP2. Phosphorylation of IRSs proteins lead to the activation of two main signaling pathways: the PI3K-AKT/PKB pathway, which is responsible for most of the metabolic actions of insulin, and the Ras-MAPK pathway, which regulates expression of some genes and cooperates with the PI3K pathway to control cell growth and differentiation. Binding of the SH2 domains of PI3K to phosphotyrosines on IRS1 leads to the activation of PI3K and the generation of phosphatidylinositol-(3, 4, 5)-triphosphate (PIP3), a lipid second messenger, which activates several PIP3-dependent serine/threonine kinases, such as PDPK1 and subsequently AKT/PKB. The net effect of this pathway is to produce a translocation of the glucose transporter SLC2A4/GLUT4 from cytoplasmic vesicles to the cell membrane to facilitate glucose transport. Moreover, upon insulin stimulation, activated AKT/PKB is responsible for: anti-apoptotic effect of insulin by inducing phosphorylation of BAD; regulates the expression of gluconeogenic and lipogenic enzymes by controlling the activity of the winged helix or forkhead (FOX) class of transcription factors. Another pathway regulated by PI3K-AKT/PKB activation is mTORC1 signaling pathway which regulates cell growth and metabolism and integrates signals from insulin. AKT mediates insulin-stimulated protein synthesis by phosphorylating TSC2 thereby activating mTORC1 pathway. The Ras/RAF/MAP2K/MAPK pathway is mainly involved in mediating cell growth, survival and cellular differentiation of insulin. Phosphorylated IRS1 recruits GRB2/SOS complex, which triggers the activation of the Ras/RAF/MAP2K/MAPK pathway. In addition to binding insulin, the insulin receptor can bind insulin-like growth factors (IGFI and IGFII). Isoform Short has a higher affinity for IGFII binding. When present in a hybrid receptor with IGF1R, binds IGF1. PubMed:12138094 shows that hybrid receptors composed of IGF1R and INSR isoform Long are activated with a high affinity by IGF1, with low affinity by IGF2 and not significantly activated by insulin, and that hybrid receptors composed of IGF1R and INSR isoform Short are activated by IGF1, IGF2 and insulin. In contrast, PubMed:16831875 shows that hybrid receptors composed of IGF1R and INSR isoform Long and hybrid receptors composed of IGF1R and INSR isoform Short have similar binding characteristics, both bind IGF1 and have a low affinity for insulin. Subunit: Tetramer of 2 alpha and 2 beta chains linked by disulfide bonds. The alpha chains contribute to the formation of the ligand-binding domain, while the beta chains carry the kinase domain. Forms a hybrid receptor with IGF1R, the hybrid is a tetramer consisting of 1 alpha chain and 1 beta chain of INSR and 1 alpha chain and 1 beta chain of IGF1R. Interacts with SORBS1 but dissociates from it following insulin stimulation. Binds SH2B2. Activated form of INSR interacts (via Tyr-999) with the PTB/PID domains of IRS1 and SHC1. The sequences surrounding the phosphorylated NPXY motif contribute differentially to either IRS1 or SHC1 recognition. Interacts (via tyrosines in the C-terminus) with IRS2 (via PTB domain and 591-786 AA); the 591-786 would be the primary anchor of IRS2 to INSR while the PTB domain would have a stabilizing action on the interaction with INSR. Interacts with the SH2 domains of the 85 kDa regulatory subunit of PI3K (PIK3R1) in vitro, when autophosphorylated on tyrosine residues. Interacts with SOCS7. Interacts (via the phosphorylated Tyr-999), with SOCS3. Interacts (via the phosphorylated Tyr-1185, Tyr-1189, Tyr-1190) with SOCS1. Interacts with CAV2 (tyrosine-phosphorylated form); the interaction is increased with 'Tyr-27'phosphorylation of CAV2 (By similarity). Interacts with ARRB2 (By similarity). Interacts with GRB10; this interaction blocks the association between IRS1/IRS2 and INSR, significantly reduces insulin-stimulated tyrosine phosphorylation of IRS1 and IRS2 and thus decreases insulin signaling. Interacts with GRB7 (By similarity). Interacts with PDPK1. Interacts (via Tyr-1190) with GRB14 (via BPS domain); this interaction protects the tyrosines in the activation loop from dephosphorylation, but promotes dephosphorylation of Tyr-999, this results in decreased interaction with, and phosphorylation of, IRS1. Interacts (via subunit alpha) with ENPP1 (via 485-599 AA); this interaction blocks autophosphorylation. Interacts with PTPRE; this interaction is dependent of Tyr-1185, Tyr-1189 and Tyr-1190 of the INSR. Interacts with STAT5B (via SH2 domain). Interacts with PTPRF. Subcellular Location: Membrane; Single-pass type I membrane protein. Tissue Specificity: Isoform Long and isoform Short are predominantly expressed in tissue targets of insulin metabolic effects: liver, adipose tissue and skeletal muscle but are also expressed in the peripheral nerve, kidney, pulmonary alveoli, pancreatic acini, placenta vascular endothelium, fibroblasts, monocytes, granulocytes, erythrocytes and skin. Isoform Short is preferentially expressed in fetal cells such as fetal fibroblasts, muscle, liver and kidney. Found as a hybrid receptor with IGF1R in muscle, heart, kidney, adipose tissue, skeletal muscle, hepatoma, fibroblasts, spleen and placenta (at protein level). Overexpressed in several tumors, including breast, colon, lung, ovary, and thyroid carcinomas. Post-translational modifications: After being transported from the endoplasmic reticulum to the Golgi apparatus, the single glycosylated precursor is further glycosylated and then cleaved, followed by its transport to the plasma membrane. Autophosphorylated on tyrosine residues in response to insulin. Phosphorylation of Tyr-999 is required for IRS1-, SHC1-, and STAT5B-binding. Dephosphorylated by PTPRE on Tyr-999, Tyr-1185, Tyr-1189 and Tyr-1190 residues. Dephosphorylated by PTPRF. DISEASE: Defects in INSR are the cause of Rabson-Mendenhall syndrome (RMS) [MIM:262190]; also known as Mendenhall syndrome. RMS is a severe insulin resistance syndrome characterized by insulin-resistant diabetes mellitus with pineal hyperplasia and somatic abnormalities. Typical features include coarse, senile-appearing facies, dental and skin abnormalities, abdominal distension, and phallic enlargement. Inheritance is autosomal recessive. Defects in INSR are the cause of leprechaunism (LEPRCH) [MIM:246200]; also known as Donohue syndrome. Leprechaunism represents the most severe form of insulin resistance syndrome, characterized by intrauterine and postnatal growth retardation and death in early infancy. Inheritance is autosomal recessive. Defects in INSR may be associated with noninsulin-dependent diabetes mellitus (NIDDM) [MIM:125853]; also known as diabetes mellitus type 2. Defects in INSR are the cause of familial hyperinsulinemic hypoglycemia type 5 (HHF5) [MIM:609968]. Familial hyperinsulinemic hypoglycemia [MIM:256450], also referred to as congenital hyperinsulinism, nesidioblastosis, or persistent hyperinsulinemic hypoglycemia of infancy (PPHI), is the most common cause of persistent hypoglycemia in infancy and is due to defective negative feedback regulation of insulin secretion by low glucose levels. Defects in INSR are the cause of insulin-resistant diabetes mellitus with acanthosis nigricans type A (IRAN type A) [MIM:610549]. This syndrome is characterized by the association of severe insulin resistance (manifested by marked hyperinsulinemia and a failure to respond to exogenous insulin) with the skin lesion acanthosis nigricans and ovarian hyperandrogenism in adolescent female subjects. Women frequently present with hirsutism, acne, amenorrhea or oligomenorrhea, and virilization. This syndrome is different from the type B that has been demonstrated to be secondary to the presence of circulating autoantibodies against the insulin receptor. Similarity: Belongs to the protein kinase superfamily. Tyr protein kinase family. Insulin receptor subfamily. Contains 3 fibronectin type-III domains. Contains 1 protein kinase domain. Database links: Entrez Gene: 3643 Human Entrez Gene: 16337 Mouse Entrez Gene: 24954 Rat Entrez Gene: 484990 Dog Omim: 147670 Human SwissProt: P06213 Human SwissProt: P15208 Mouse SwissProt: P15127 Rat Unigene: 465744 Human Unigene: 9876 Rat Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. |
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文献和实验打破传统认知,降糖不仅依赖胰岛素!科学家发现,这种来自脂肪的激素也可以调节血糖……
%,但对 adR1KO 小鼠无影响。 放射标记的油酸是体内脂肪分解的一种测量方法,他们的实验发现,在 FGF1 处理的 adR1WT 小鼠中,油酸的转换率降低,表明基础脂解降低。相比之下,FGF1 预处理对 adR1KO 小鼠的油酸转换率没有影响。因此,上述的发现表明 FGF1-FGFR1 信号通路是一种调节脂肪分解的新途径。 图片来源:Cell Metabolism FGF1 调节体内肝脏葡萄糖生成 胰岛素在一定程度上通过抑制脂解从而抑制肝脏葡萄糖生成(HGP)来调节血糖水平,而 HGP 的异常
闻一闻就可以减肥?Nat Metab 研究发现食物气味竟能调节脂肪代谢
,用正常食物气味进行预刺激会增强油脂摄入诱导的血清甘油三酯水平升高。但禁食期间的食物气味刺激不影响小鼠随后的食物摄入、进食状态下的血糖水平、血清胰岛素或脂联素水平。 代谢笼分析表明禁食期间的气味刺激降低了重新喂食后的呼吸商(RQ)。但在瘦素受体缺陷 db/db 小鼠中,没有检测到 RQ 的这种变化。这些结果表明,用食物气味餐前刺激以瘦素受体相关的方式促进餐后的脂质利用,独立于大脑中的食欲素能和多巴胺能奖励途径。 与减少的呼吸商一致,气味的餐前刺激增加了乳糜微粒和极低密度脂蛋白组分中的血清
眼看它就要封神了...Science 报道烟酰胺可增强胰岛素敏感性、促进肌肉重塑
因为蛋白激酶 AKT 和 mTOR 是胰岛素信号通路中参与调节葡萄糖摄取和肌肉重塑的关键因子,所以研究人员评估了 NMN 补充对肌肉中 AKT 第 473 位丝氨酸和 308 位苏氨酸,以及 mTOR 第 2448 位丝氨酸磷酸化的效果。在 NMN 组注射胰岛素后,肌肉 AKT 和 mTOR 磷酸化水平以及总 AKT 和 mTOR 蛋白丰度均高于治疗前,而安慰剂组无差异,这一结果与体内观察结果,和 NMN 治疗对肌肉胰岛素敏感性的影响是一致的。 图片来源:Science
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