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Product Name Anti-C5a anaphylatoxin/PE-Cy5 Chinese Name PE-Cy5标记的过敏毒素C5a/补体C5a抗体 Alias Complement C5; Complement C5a; Hemolytic complement; C5a anaphylatoxin; C5a; IFN-gamma-complement component C5a fusion protein; Complement-C5; C3 and PZP-like alpha-2-macroglobulin domain-containing protein 4; Research Area immunology Neurobiology Immunogen Species Rabbit Clonality Polyclonal React Species Human, Mouse, Applications IF=1:50-200
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.Molecular weight 9/113kDa Form Lyophilized or Liquid Concentration 1mg/ml immunogen KLH conjugated synthetic peptide derived from mouse C5a (725-770aa) Lsotype IgG Purification affinity purified by Protein A Storage Buffer 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. Storage 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. Product Detail background:
The protein encoded by this gene is the fifth component of complement, which plays an important role in inflammatory and cell killing processes. This protein is comprised of alpha and beta polypeptide chains that are linked by a disulfide bridge. An activation peptide, C5a, which is an anaphylatoxin that possesses potent spasmogenic and chemotactic activity, is derived from the alpha polypeptide via cleavage with a convertase. The C5b macromolecular cleavage product can form a complex with the C6 complement component, and this complex is the basis for formation of the membrane attack complex, which includes additional complement components. Mutations in this gene cause complement component 5 deficiency, a disease where patients show a propensity for severe recurrent infections. Defects in this gene have also been linked to a susceptibility to liver fibrosis and to rheumatoid arthritis. [provided by RefSeq, Jul 2008].
Function:
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.
Derived from proteolytic degradation of complement C5, C5 anaphylatoxin is a mediator of local inflammatory process. It induces the contraction of smooth muscle, increases vascular permeability and causes histamine release from mast cells and basophilic leukocytes. C5a also stimulates the locomotion of polymorphonuclear leukocytes (chemokinesis) and direct their migration toward sites of inflammation (chemotaxis).
Subunit:
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).
Subcellular Location:
Secreted.
DISEASE:
Defects in C5 are the cause of complement component 5 deficiency (C5D) [MIM:609536]. A rare defect of the complement classical pathway associated with susceptibility to severe recurrent infections, predominantly by Neisseria gonorrhoeae or Neisseria meningitidis.
Note=An association study of C5 haplotypes and genotypes in individuals with chronic hepatitis C virus infection shows that individuals homozygous for the C5_1 haplotype have a significantly higher stage of liver fibrosis than individuals carrying at least 1 other allele (PubMed:15995705).
Similarity:
Contains 1 anaphylatoxin-like domain.
Contains 1 NTR domain.
Database links:
Entrez Gene: 727 Human
Entrez Gene: 15139 Mouse
Omim: 120900 Human
SwissProt: P01031 Human
SwissProt: P06684 Mouse
Unigene: 494997 Human
Unigene: 2168 Mouse
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
补体C5a片段能使活化的白细胞释放MPO和乳铁传递蛋白。随着弹性酶浓度增加,C5a片段导致中性粒细胞释放MPO和乳铁传递蛋白增加,而组织蛋白酶G对两者的释放产生双向反应。经研究结果表明C5a片断对刺激中性粒细胞脱颗粒有重要作用。
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