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Human Complement C5 Protein, His Tag

分子别名(Synonym)

Complement C5,C5,CPAMD4

表达区间及表达系统(Source)

Human Complement C5, His Tag (CO5-H52Ha) is expressed from human 293 cells (HEK293). It contains AA Gln 19 - Cys 1676 (Accession # P01031-1).

Predicted N-terminus: Gln 19 (β chain) & Thr 678 (α chain)

蛋白结构(Molecular Characterization)

Online(Gln 19 - Cys 1676) P01031-1

This protein carries a polyhistidine tag at the C-terminus. The mature form of Complement C5 is a disulfide-linked heterodimer composed of proteolytically cleaved α and β chain. Each α and β chain has a calculated MW of 73.9 kDa (β chain) and 114.4 kDa (α chain). The protein migrates as 67 kDa (β chain) and 106-116 kDa (α chain) under reducing (R) condition (SDS-PAGE), and 130-150 kDa under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>90% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

Contact us for customized product form or formulation.

重构方法(Reconstitution)

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

存储(Storage)

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:

  1. -20°C to -70°C for 24 months in lyophilized state;
  2. -70°C for 12 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

Human Complement C5, His Tag (Cat. No. CO5-H52Ha) SDS-PAGE gel

Human Complement C5, His Tag on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 90%.

获取HPLC数据

 

活性(Bioactivity)-ELISA

Biotinylated Human ELISA

Immobilized Human Complement C5, His Tag (Cat. No. CO5-H52Ha) at 2 μg/mL (100 μL/well) can bind Anti-C5a (Human IgG1) with a linear range of 0.2-3 ng/mL (QC tested).

Protocol

背景(Background)

Derived from proteolytic degradation of complement C5, C5 anaphylatoxin is a mediator of local inflammatory process. C5 precursor is first processed by the removal of 4 basic residues, forming two chains, beta and alpha, linked by a disulfide bond. C5 convertase activates C5 by cleaving the alpha chain, releasing C5a anaphylatoxin and generating C5b (beta chain + alpha' chain). Activation of C5 by a C5 convertase initiates the spontaneous assembly of the late complement components, C5-C9, into the membrane attack complex. C5b has a transient binding site for C6. The C5b-C6 complex is the foundation upon which the lytic complex is assembled. The C5a anaphylatoxin interacts with C5AR1 and tick complement inhibitor. C5a is also a potent chemokine which stimulates the locomotion of polymorphonuclear leukocytes and directs their migration toward sites of inflammation.

 

前沿进展

 
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Complement C5靶点信息
英文全称:Complement C5
中文全称:补体C5
种类:Homo sapiens
上市药物数量:2详情
临床药物数量:17详情
最高研发阶段:批准上市
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