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AB275667

APC Anti-CD55 antibody [028]

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Rabbit Recombinant Monoclonal DAF antibody - conjugated to APC. Suitable for Flow Cyt and reacts with Human samples. Immunogen corresponding to Recombinant Fragment Protein within Human CD55 aa 1 to C-terminus.

View Alternative Names

CD55, CR, DAF, Complement decay-accelerating factor

1 Images
Flow Cytometry - APC Anti-CD55 antibody [028] (AB275667)
  • Flow Cyt

Supplier Data

Flow Cytometry - APC Anti-CD55 antibody [028] (AB275667)

Flow cytometric analysis of K562 (human chronic myelogenous leukemia cell line from bone marrow) cells labeling CD55 with ab275667 at 5 μL per test (Black) compared to an isotype control (Grey).

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

028

Isotype

IgG

Conjugation

APC

Excitation/Emission

Ex: 650nm, Em: 660nm

Carrier free

No

Reacts with

Human

Applications

Flow Cyt

applications

Immunogen

Recombinant Fragment Protein within Human CD55 aa 1 to C-terminus. The exact immunogen used to generate this antibody is proprietary information.

P08174

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "FlowCyt-species-checked": "testedAndGuaranteed", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p>Use at 5 μL per test</p>" } } }
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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
Preservative: 0.09% Sodium azide Constituents: 0.5% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
Do Not Freeze|Store in the dark
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Supplementary information

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

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.

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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Product protocols

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

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 (PubMed : 7525274). Inhibits complement activation by destabilizing and preventing the formation of C3 and C5 convertases, which prevents complement damage (PubMed : 28657829).. (Microbial infection) Acts as a receptor for Coxsackievirus A21, coxsackieviruses B1, B3 and B5.. (Microbial infection) Acts as a receptor for Human enterovirus 70 and D68 (Probable).. (Microbial infection) Acts as a receptor for Human echoviruses 6, 7, 11, 12, 20 and 21.
See full target information CD55
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