Human IL-1RA/IL-1F3 DTSet enzyme-linked immunoassay kit
概述
产品名称
Human IL-1RA/IL-1F3 DTSet enzyme-linked immunoassay kit
产品类型
DTSet Elisa Kit
| pg/ml | O.D. | Average | Corrected | |
|---|---|---|---|---|
| 0.00 | 0.0704 | 0.0690 | 0.0697 | |
| 31.25 | 0.3218 | 0.2896 | 0.3057 | 0.2360 |
| 62.50 | 0.4407 | 0.5047 | 0.4727 | 0.4030 |
| 125.00 | 0.7050 | 0.7112 | 0.7081 | 0.6384 |
| 250.00 | 1.2660 | 1.2780 | 1.2720 | 1.2023 |
| 500.00 | 2.2600 | 2.1290 | 2.1945 | 2.1248 |
| 1000.00 | 3.3460 | 2.9920 | 3.1690 | 3.0993 |
| 2000.00 | 4.0657 | 4.0810 | 4.0734 | 4.0037 |
实验类型
夹心酶联免疫吸附测定(Sandwich Elisa)
种属反应性
Human
检测方法
比色法
实验检测时长
120min
标准曲线范围
31.25 pg/ml -2000 pg/ml
标准曲线梯度
7点/3倍
孵育次数
2
可检测样本
加样体积
50 μl
产品特性
- 优化的捕获和检测抗体配对与推荐浓度可节省较长的开发时间
- 提供开发方案以指导进一步的分析优化
- 检测可根据您的特定需求进行定制
- 完整试剂盒的经济替代品
试剂盒组分
- 捕获抗体
- 检测抗体
- 重组标准品
- 与辣根过氧化物酶偶联的链霉亲和素 (Streptavidin-HRP)
所需的其他材料
DTSet辅助试剂盒(5板):包含96孔微孔板、封板膜、显色液、终止溶液、包板缓冲液(PBS)、洗涤缓冲液和检测缓冲液。
上面列出的部件可以单独购买:
- 96孔微孔板板(EP): YOUKE Life, Catalog # DSEP01
- 封板木膜(PS): YOUKE Life, Catalog # DSSF01。
- 包板缓冲液(CB): 137mM NaCl,2.7mM KCl,8.1mM Na2HPO4,1.5mM KH2PO4,pH 7.2-7.4,0.2m过滤。YOUKE Life, Catalog # DSCB01。
- 检测缓冲液 10X(AB): 0.5%BSA,0.05%Tween20,PBS溶液。YOUKE Life, Catalog # DSAB01。
- 封闭液(BB): YOUKE Life, Catalog # DSBB01。
- Washing Solution: 0.05%Tween20,PBS溶液,pH 7.2-7.4。YOUKE Life, Catalog # DSWB01。
- 底物显色液(TMB): TMB。YOUKE Life, Catalog # DSTS01。
- 终止溶液(SS): 0.5mol/ml H2SO4。YOUKE Life, Catalog # DSSS01。
靶点
功能
白介素-1受体拮抗剂(IL-1RA;也称为IL-1F3)是IL-1细胞因子家族的22-25 kDa成员。目前,有11个家庭成员(IL-1F1-F11),其中9个形成了人类CH2的IL-1基因簇。每个IL-1家族成员都包含一个IL-1折叠。该折叠是由12个包装的Beta -sheets生成的,它们相互作用以形成beta -trefoil结构。实现这种结构需要很少的氨基酸(AA)同源性,这解释了IL-1家族成员之间的低AA身份。 IL-1RA是一种纯细胞因子受体拮抗剂,没有信号转导发射活性。它是一种急性相蛋白,可抑制炎症。 IL-1(β)最初是由单核细胞响应多种刺激而产生的。然后,循环IL-1与广泛表达的I型I型受体(IL-1 RI)结合,并启动许多促炎事件。在内皮细胞(EC)上,IL-1诱导PGE2和IL-6释放,发烧,血小板病和肝急性相蛋白产生。在滑膜关节中,IL-1诱导软骨细胞不产生,这一事件导致胶原蛋白合成和软骨细胞凋亡减少。最后,IL-1在血液和组织中增加了中性粒细胞计数,因此能够促进多个位置的促炎环境。 IL-1RA通过竞争性抑制阻止IL-1行动。更正确地,尽管IL-1RA在IL-1 RI中填充了IL-1结合位点,但它也无法策划创建信号传递的IL-1 RI:IL-1 R辅助蛋白(IL-1 R ACP)异二聚体复合物。有效的IL-1RA浓度通常比局部IL-1浓度大100倍。这是因为IL-1RA半衰期只有6分钟,而IL-1型受体很少需要IL-1的IL-1受体才能引起细胞反应。
人IL-1RA合成为177 AA前体,其中包含25个AA信号序列和152 AA成熟区域。尽管它包含IL-1细胞因子折叠,但显然缺乏两个结构基序,可以激活IL-1受体异二聚体。首先,在与IL-1 RI结合后,ILE 51-HIS 54和LYS 145的存在排除了IL-1 R ACP的募集。其次,没有可识别的C末端凝集素段,可以假设有助于募集附件信号分量。成熟的人IL-1RA分别为77%和82%的AA与小鼠和犬IL-1RA相同,人类IL-1RA抑制了小鼠细胞的IL-1活性。许多细胞类型表达IL -1RA,包括单核细胞,Sertoli细胞,肝细胞,脂肪细胞,滑膜成纤维细胞,肥大细胞,胰腺β细胞和肠上皮细胞。至少有三个细胞内IL-1RA同工型(ICIL-1RA1、2和3)。所有均显示N末端变异,并且均包含分泌前体的35-177氨基酸。细胞内IL-1RA1特别感兴趣,因为据报道它被内皮细胞“分泌”,并以拮抗剂方式与IL-1 RI结合。细胞内IL-1RA1的长度为159 aa,显示了IL-1RA信号序列的第一个AA的3 aa取代。
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