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Rat Monoclonal DAF1 antibody. Suitable for Flow Cyt, WB and reacts with Mouse samples. Cited in 1 publication. Immunogen corresponding to Cell preparation containing Cd55b protein.

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Publications

Key facts

Isotype
IgG2a
Host species
Rat
Storage buffer

Preservative: 0.02% Sodium azide
Constituents: 99% PBS, 0.1% BSA

Form
Liquid
Clonality
Monoclonal

Immunogen

  • Cell preparation containing Cd55b protein. The exact immunogen used to generate this antibody is proprietary information. Database link Q61476

Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
Flow CytWB
Mouse
Expected
Expected

Expected
Expected

Species
Mouse
Dilution info
-
Notes

ab18450 - Rat monoclonal IgG2a, is suitable for use as an isotype control with this antibody.

Expected
Expected

Species
Mouse
Dilution info
Use at an assay dependent concentration.
Notes

-

Associated Products

Select an associated product type

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Target data

Function

This protein recognizes C4b and C3b fragments that condense with cell-surface hydroxyl or amino groups when nascent C4b and C3b are locally generated during C4 and c3 activation. Interaction of daf with cell-associated C4b and C3b polypeptides interferes with their ability to catalyze the conversion of C2 and factor B to enzymatically active C2a and Bb and thereby prevents the formation of C4b2a and C3bBb, the amplification convertases of the complement cascade. Inhibits complement activation by destabilizing and preventing the formation of C3 and C5 convertases, which prevents complement damage.

Alternative names

Recommended products

Rat Monoclonal DAF1 antibody. Suitable for Flow Cyt, WB and reacts with Mouse samples. Cited in 1 publication. Immunogen corresponding to Cell preparation containing Cd55b protein.

Key facts

Isotype
IgG2a
Form
Liquid
Clonality
Monoclonal
Immunogen
  • Cell preparation containing Cd55b protein. The exact immunogen used to generate this antibody is proprietary information. Database link Q61476
Clone number
3D5
Purification technique
Affinity purification Protein G
Concentration
Loading...

Storage

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

Notes

Abcam is leading the way to address reproducibility in scientific research with our highly validated recombinant monoclonal and recombinant multiclonal antibodies. Search & select one of Abcam's thousands of recombinant alternatives to eliminate batch-variability and unnecessary animal use.

If you do not find a host species to meet your needs, our catalogue and custom Chimeric range provides scientists the specificity of Abcam's RabMAbs in the species backbone of your choice. Remember to also review our range of edited cell lines, proteins and biochemicals relevant to your target that may help you further your research goals.

Abcam antibodies are extensively validated in a wide range of species and applications, so please check the reagent specifications meet your scientific needs before purchasing. If you have any questions or bespoke requirements, simply visit the Contact Us page to send us an inquiry or contact our Support Team ahead of purchase.

Supplementary info

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

CD55 also known as Decay-Accelerating Factor (DAF) is a glycoprotein that regulates the complement cascade. This protein typically weighs around 70 kDa. It is expressed in many cells including epithelial and endothelial cells and is often present on the surface of blood cells. CD55 plays an important role in protecting cells against lysis by inhibiting the formation and stability of C3 and C5 convertases which ultimately prevent cell destruction by the complement system.

Biological function summary

CD55 helps maintain immune homeostasis by preventing the complement-mediated damage to host tissues. It functions as a member of the regulators of complement activation (RCA) family. While not necessarily part of a larger protein complex its function is related to other regulatory proteins such as CD46 and CD59 which cooperate to regulate complement activity. The DAF protein's immunology function is instrumental in ensuring that self-cells are not inadvertently attacked by the body's immune system.

Pathways

CD55 significantly impacts the complement pathway which is a central component of the innate immune system. It directly interacts with complement components C3 and C5 accelerating their decay and disassembly. Through this pathway CD55 has a working relationship with other complement regulatory proteins like Factor H which also aids in controlling complement activation on the cell surface.

Associated diseases and disorders

A dysfunctional CD55 can relate to conditions such as paroxysmal nocturnal hemoglobinuria (PNH) and atypical hemolytic uremic syndrome (aHUS). In PNH the absence or insufficiency of CD55 (and CD59) on red blood cells leads to complement-mediated lysis causing hemolytic anemia. In aHUS impaired regulation of the complement system including abnormalities in CD55 function exacerbates symptoms. CD55's role is therefore important in preventing these complement-related disorders and preserving cellular integrity in the human body.

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