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AB231090

Anti-C4a antibody

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(1 Publication)

Rabbit Polyclonal C4b antibody. Suitable for WB and reacts with Recombinant fragment - Mouse, Rat samples. Cited in 1 publication. Immunogen corresponding to Recombinant Fragment Protein within Mouse C4b aa 650-800.

View Alternative Names

C4, C4b, Complement C4-B

2 Images
Western blot - Anti-C4a antibody (AB231090)
  • WB

Supplier Data

Western blot - Anti-C4a antibody (AB231090)

All lanes:

Western blot - Anti-C4a antibody (ab231090) at 2 µg/mL

All lanes:

Rat serum

Secondary

All lanes:

HRP-Linked Guinea pig anti-Rabbit at 1/2000 dilution

Predicted band size: 193 kDa

false

Western blot - Anti-C4a antibody (AB231090)
  • WB

Supplier Data

Western blot - Anti-C4a antibody (AB231090)

All lanes:

Western blot - Anti-C4a antibody (ab231090) at 2 µg/mL

All lanes:

Recombinant mouse C4A

Secondary

All lanes:

HRP-Linked Guinea pig anti-Rabbit at 1/2000 dilution

Predicted band size: 193 kDa

false

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Rat

Applications

WB

applications

Immunogen

Recombinant Fragment Protein within Mouse C4b aa 650-800. The exact immunogen used to generate this antibody is proprietary information.

P01029

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Mouse": { "WB-species-checked": "predicted", "WB-species-dilution-info": "", "WB-species-notes": "" }, "Rat": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "0.5-2 µg/mL", "WB-species-notes": "<p></p>" }, "Recombinant fragment - Mouse": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "0.5-2 µg/mL", "WB-species-notes": "<p></p>" } } }
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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Purification notes
ab231090 was purified by antigen-specific affinity chromatography followed by Protein A affinity chromatography.
Storage buffer
pH: 7.4 Preservative: 0.02% Sodium azide Constituents: PBS, 55.77% Glycerol (glycerin, glycerine)
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Complement C4a also known as C4a anaphylatoxin is a component of the complement system with a molecular mass of approximately 9 kDa. This small protein originates from the proteolytic cleavage of complement component C4 which contributes to immune system activation. C4a is mainly expressed in the liver but can also be produced by other tissues during inflammation. It serves as a chemoattractant recruiting immune cells to sites of infection helping initiate a response against pathogens.
Biological function summary

Complement C4a acts as an anaphylatoxin participating in the complex immune system response. Anaphylatoxins like C4a C3a and C5a contribute to the inflammatory process by inducing smooth muscle contraction increasing vascular permeability and triggering histamine release from mast cells and basophils. C4a complements the activities of other complement components playing an important role in modulating inflammation and defense mechanisms in the body.

Pathways

The activation of C4a is an important step within the classical and lectin pathways of complement activation. These pathways involve the recognition and elimination of pathogens and unwanted cells. C4a along with its related proteins C4b and components C2 and C3 facilitates the formation of C3 convertase which amplifies the response and further clears pathogens. C4a also interacts with complement inhibitors which regulate these pathways to prevent excessive tissue damage during inflammation.

C4a anaphylatoxin has associations with autoimmune diseases and angioneoplasm. Changes in serum levels of C4a are observed in conditions like systemic lupus erythematosus where it may contribute to tissue damage. High C4a levels can correlate with disease activity and severity. Additionally C4a alongside other anaphylatoxins like C3a and C5a might play a role in angiogenesis influencing tumor progression and angiogenesis-related disorders serving as a potential biomarker for disease severity and prognosis.
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Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:
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Target data

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. Catalyzes the transacylation of the thioester carbonyl group to form ester bonds with carbohydrate antigens (By similarity).
See full target information C4b
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Publications (1)

Recent publications for all applications. Explore the full list and refine your search

Journal of translational medicine 23:335 PubMed40089779

2025

F-box protein FBXO21 overexpression inhibits the proliferation and metastasis of clear cell renal cell carcinoma and is closely related to the CREB pathway and tumor immune cell infiltration.

Applications

Unspecified application

Species

Unspecified reactive species

Wuping Yang,Taile Jing,Cunjin Wu,Minghao Lu,Xiaolin Yao,Dan Xia,Ding Peng
View all publications
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