Product nameAnti-C4b antibody [EPR11203]
See all C4b primary antibodies
DescriptionRabbit monoclonal [EPR11203] to C4b
Tested applicationsSuitable for: WB, Flow Cytmore details
Unsuitable for: ICC,IHC-P or IP
Species reactivityReacts with: Human
Recombinant fragment corresponding to residues in Human C4b (UniProt P0C0L5).
- Human serum, Human fetal liver and HepG2 lysates; HepG2 cells.
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents
This product is a recombinant rabbit monoclonal antibody.
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term.
Storage bufferPreservative: 0.01% Sodium azide
Constituents: 9% PBS, 40% Glycerol, 0.05% BSA, 50% Tissue culture supernatant
PurityTissue culture supernatant
Our Abpromise guarantee covers the use of ab168358 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||1/1000 - 1/10000. Predicted molecular weight: 193 kDa.|
|Flow Cyt||1/10 - 1/100.
ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.
FunctionC4 plays a central role in the activation of the classical pathway of the complement system. It is processed by activated C1 which removes from the alpha chain the C4a anaphylatoxin. The remaining alpha chain fragment C4b is the major activation product and is an essential subunit of the C3 convertase (C4b2a) and the C5 convertase (C3bC4b2a) enzymes of the classical complement pathway.
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.
Sequence similaritiesContains 1 anaphylatoxin-like domain.
Contains 1 NTR domain.
modificationsPrior to secretion, the single-chain precursor is enzymatically cleaved to yield the non-identical chains (alpha, beta and gamma). During activation, the alpha chain is cleaved by C1 into C4a and C4b, and C4b stays linked to the beta and gamma chains. Further degradation of C4b by C1 into the inactive fragments C4c and C4d blocks the generation of C3 convertase.
- Information by UniProt
- Basic complement C4 antibody
- C2B5 antibody
- C3 and PZP-like alpha-2-macroglobulin domain-containing protein 3 antibody
All lanes : Anti-C4b antibody [EPR11203] (ab168358) at 1/1000 dilution
Lane 1 : Human serum lysate
Lane 2 : Human fetal liver lysate
Lane 3 : HepG2 cell lysate
Lysates/proteins at 10 µg per lane.
All lanes : HRP labeled goat anti-rabbit at 1/2000 dilution
Predicted band size: 193 kDa
Flow cytometric analysis of permeabilized HepG2 cells labeling C4b with ab168358 at 1/10 dilution (red) compared to a rabbit IgG negative control (green).