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  sCD14(人)ELISA试剂盒(E-HK320)
   

sCD14(人)ELISA试剂盒                                           货号:E-HK320

sCD14, Human, ELISA kit

背景资料:The human sCD14 ELISA is a ready-to-use solid-phase enzyme-linked immunosorbent assay based on the sandwich principle with a working time of 3·5 hours· The efficient format a 2 plate with twelve disposable 8-well strips allows free choice of batch size for the assay· Samples and standards are captured by a solid bound specific antibody· Biotinylated tracer antibody will bind to captured human sCD14· Streptavidin-peroxidase conjugate will bind to the biotinylated tracer antibody· Streptavidin-peroxidase conjugate will react with the substrate, tetramethylbenzidine (TMB)· The enzyme reaction is stopped by the addition of citric acid· The absorbance at 450 nm is measured with a spectrophotometer· A standard curve is obtained by plotting the absorbance (linear) versus the corresponding concentrations of the human sCD14 standards (log)· The human sCD14 concentration of samples, which are run concurrently with the standards, can be determined from the standard curve··

产品描述:CD14, the 55-kDa glycoprotein known to function as a receptor for LPS, is expressed mainly on the surface of monocytes/macrophages, and PMN, the cells responsible for scavenging of LPS and bacteria· Although monocytes and PMN are the main CD14 expressing cells few reports have described CD14 expression on B-cells, mesangial cells and basophils· The plasma protein LBP plays an important role in the LPS-CD14 mediated cell activation· In addition to the function as receptor for LPS, several other functions have been ascribed to CD14; next to the recognition of micro-organisms by the innate immune system CD14 also plays a role in cell-cell interactions· Besides the membrane bound form of CD14, the soluble form of CD14 (sCD14), which lacks the GPI anchor, is also involved in LPS-induced cell activation· Two forms of sCD14 have been described· An approximately 48 kDa form, derived from monocytes membrane CD14, and a 56 kDa form, speculated to be directly released in plasma or supernatant after processing· sCD14 affects LPS functioning via several pathways· sCD14 is an intermediate in the transfer of LPS to lipoproteins, resulting into neutralization of LPS· On the contrary, sCD14 facilitates LPS activation of CD14-membrane negative cells like endo- and epithelium· Furthermore, high concentrations of sCD14 were shown to block LPS-induced activation of monocytes· sCD14 thus both enhances and reduces cellular responses to LPS· sCD14 was demonstrated to be present in plasma in levels ranging from 2 - 4 ug/ml and to be enhanced in infectious diseases··

产品特点:Detection level 8·8 ng/ml

保存建议:推荐4℃保存,有效期一年。

定购信息: 

产品名称 规格 操作手册 货号 询价
sCD14(人)ELISA试剂盒 1 x 96 det PDF E-HK320-01 点击这里给我发消息
sCD14(人)ELISA试剂盒 2 x 96 det PDF E-HK320-02  
VisionBlue快速细胞活力分析试剂盒 500 次 PDF C-K303-500  

表观遗传学产品全面解决方案列下:

产品名称 规格 操作手册 货号 询价
DNA羟甲基化定量试剂盒(荧光法) 48 次 PDF A-P-1037-48 点击这里给我发消息
DNA羟甲基化定量试剂盒(荧光法) 96 次 PDF A-P-1037-96  
DNA羟甲基化定量试剂盒(比色法) 48 次 PDF A-P-1036-48 点击这里给我发消息
DNA羟甲基化定量试剂盒(比色法) 96 次 PDF A-P-1036-96  
DNA甲基化定量试剂盒(荧光法) 48 次 PDF A-P-1035-48 点击这里给我发消息
DNA甲基化定量试剂盒(荧光法) 96 次 PDF A-P-1035-96  
DNA甲基化定量试剂盒(比色法) 48 次 PDF A-P-1034-48 点击这里给我发消息
DNA甲基化定量试剂盒(比色法) 96 次 PDF A-P-1034-96  
通用DNA甲基化试剂盒(定性分析) 48 次 PDF A-P-1011-48 点击这里给我发消息
通用DNA甲基化试剂盒(定性分析) 96 次 PDF A-P-1011-96  
超敏DNA甲基化定量试剂盒 48 次 PDF A-P-1021-48 点击这里给我发消息
超敏DNA甲基化定量试剂盒 96 次 PDF A-P-1021-96  
总DNA甲基化定量试剂盒 48 次 PDF A-P-1014-48 点击这里给我发消息
总DNA甲基化定量试剂盒 96 次 PDF A-P-1014-96  

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关于5-hmC
5-hmC是近年来在动物组织中发现的,由胞嘧啶修饰而来。5-hmC在表观遗传学上的功能可能与5-甲基化胞嘧啶(5-mC)不同。尽管到现在为止还不确知其功能,有研究者猜测它在调控基因的表达与关闭过程中起着重要的作用。5-mC的发现让我们不得不重新评估DNA甲基信息,也不得不监测人类的健康组织和病理组织之间5-mC相对分布的差异。在EPI公司的MethylFlash技术之前,我们还没有发现任何直接的常规方法来检测5- hmC,以及区分5-hmC和5-mC

5-hmC 和 5-mC的区别
时下常用的DNA甲基化分析方法包括限制内切酶酶切和亚硫酸氢盐或MeDIP介导的MS-PCR和测序,这些技术都不适合用来检测5-hmC,因为它与5-mC事实上很难用这类方法区分开来。为了解决这个问题,EPIk研制了MethylFlash羟甲基化DNA定量试剂盒(荧光法)。本试剂盒提供了一种很经济的方法来检测5-羟甲基化胞嘧啶,并且区分5-hmC, 5-mC, 和 C,使得研究者能够重新评估他们的DNA甲基化信息,也能够在新样品中寻找DNA羟甲基化。

 
 
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