C4A Rabbit mAb [8869]Cat NO.: A77341

Protein names ：Acidic C4; Acidic complement C4; Basic C4; Basic complement C4; C4A; C4A2; C4A3; C4A4; C4A6; C4AD; C4B1; C4B12; C4B2; C4B3; C4BD; C4F; C4S; CPAMD2; CPAMD3;

UniProtID ：P0C0L4

MASS(da) ：192,785

MW(kDa) ：193kDa

Form ：Liquid

Purification ：Affinity-chromatography

Host ：Rabbit

Isotype ： IgG

sensitivity ：Endogenous

Reactivity ：Human

• ApplicationDilution
• 免疫印迹(WB)1:1000-2000
• 免疫组化(IHC)1:100
• The optimal dilutions should be determined by the end user

Specificity ：Antibody is produced by immunizing animals with A synthesized peptide derived from human C4A

Storage ：Antibody store in 10 mM PBS, 0.5mg/ml BSA, 50% glycerol. Shipped at 4°C. Store at-20°C or -80°C. Products are valid for one natural year of receipt.Avoid repeated freeze / thaw cycles.

WB Positive detected ：HepG2 cell lysate.

Function ： Non-enzymatic component of C3 and C5 convertases and thus essential for the propagation of the classical complement pathway. Covalently binds to immunoglobulins and immune complexes and enhances the solubilization of immune aggregates and the clearance of IC through CR1 on erythrocytes. C4A isotype is responsible for effective binding to form amide bonds with immune aggregates or protein antigens, while C4B isotype catalyzes the transacylation of the thioester carbonyl group to form ester bonds with carbohydrate antigens., Derived from proteolytic degradation of complement C4, C4a 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.

Tissue specificity ：Complement component C4 is expressed at highest levels in the liver, at moderate levels in the adrenal cortex, adrenal medulla, thyroid gland, and the kidney, and at lowest levels in the heart, ovary, small intestine, thymus, pancreas and spleen. The extra-hepatic sites of expression may be important for the local protection and inflammatory response..

Subcellular locationi ：Secreted. Cell junction, synapse. Cell projection, axon. Cell projection, dendrite.

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 1% w/v BSA, 1X TBST at 4°C overnight.