Anti-CD55 Antibody [67] (A278754)

Anti-CD55 Antibody [67]

Mouse monoclonal [67] antibody to CD55.

This antibody recognises the human CD55 cell surface antigen, a GPI linked molecule also known as decay accelerating factor (DAF). CD55 is expressed by a wide range of cell types.CD55 is the complement regulatory protein, decay accelerating factor (DAF). Human CD55 is a ~70 kDa glycoprotein (in erythrocytes) anchored in the membrane by glycosylphosphatidylinositol tail. In other cells the apparent molecular weight is somewhat larger. It has a substantial content of O-glycans, and also on N-glycan. DAF binds to activated C4b or C3b complement fragments on the cell surface, preventing the assembly and accelerating the decay of both classical and alternative pathways. DAF carries the Cromer related blood group antigens.DAF has a wide distribution on cells in non-haematopoietic tissues, particularly epithelium and is found at the fetal-maternal interface in placenta (Holmes et al. 1990 and Yang et al. 2009). Soluble forms of DAF are found, for example, in plasma, saliva and urine. The antigen on erythrocytes is pronase and chymotrypsin sensitive, but resistant to trypsin.

WB, Flow Cytometry, IHC-Fr

Flow Cytometry: 1:10 - 1:25, IHC-Fr: 1:100 - 1:1,000, Use 10µl of the suggested working dilution to label 10⁶ cells in 100µl. Please note: Bio-Rad do not recommend the use of this reagent to stain erythrocytes

Human

K562 cell line.

Mouse

Monoclonal

67

IgG1

Unconjugated

Protein A affinity chromatography of tissue culture supernatant.

Liquid

Supplied in Phosphate Buffered Saline with 0.09% Sodium Azide.

Shipped at ambient temperature. Upon delivery aliquot and store at -20°C. When thawed, aliquot the sample as needed. Short term (up to 4 weeks): store at 4°C. Long term: store at -20°C. Avoid freeze / thaw cycles. Storage in frost free freezers is not recommended.

Mouse anti Human CD55 antibody, clone 67 recognizes the human CD55 cell surface antigen, a GPI linked molecule also known as decay accelerating factor (DAF). CD55 is expressed by a wide range of cell types.CD55 is the complement regulatory protein, decay accelerating factor (DAF) (Lublin and Atkinson 1989). Human CD55 is a ~70 kDa glycoprotein (in erythrocytes) anchored in the membrane by glycosylphosphatidylinositol tail. In other cells the apparent molecular weight is somewhat larger. It has a substantial content of O-glycans, and also on N-glycan. DAF binds to activated C4b or C3b complement fragments on the cell surface, preventing the assembly and accelerating the decay of both classical and alternative pathways. DAF carries the Cromer related blood group antigens.DAF has a wide distribution on cells in non-haematopoietic tissues, particularly epithelium and is found at the fetal-maternal interface in placenta (Holmes et al. 1990 and Yang et al. 2009). Soluble forms of DAF are found, for example, in plasma, saliva and urine (Medof et al. 1987). The antigen on erythrocytes is pronase and chymotrypsin sensitive, but resistant to trypsin.

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