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Invitrogen
CD55 Polyclonal Antibody
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CD55 Antibody (PA5-119532) in WB
Western blot analysis of CD55 in various whole cell extracts (30 µg). Samples were incubated with CD55 polyclonal antibody (Product # PA5-119532) using a dilution of 1:1,000 followed by HRP-conjugated anti-rabbit IgG. Separated by 10% SDS-PAGE. Corresponding RNA expression data for the same cell lines are based on Human Protein Atlas program.
Product Details
PA5-119532
Product Specifications
Species Reactivity
Human
Host/Isotype
Rabbit
/ IgG
Class
Polyclonal
Type
Antibody
Immunogen
Recombinant protein encompassing a sequence within the center region of human CD55. The exact sequence is proprietary.
Conjugate
Form
Liquid
Concentration
1 mg/mL
Purification
Antigen affinity chromatography
Storage buffer
PBS, pH 7, with 1% BSA, 20% glycerol
Contains
0.01% thimerosal
Storage conditions
Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_2913105
Product Specific Information
Store as concentrated solution. Centrifuge briefly prior to opening vial. For short-term storage (1-2 weeks), store at 4°C. For long-term storage, aliquot and store at -20°C or below. Avoid multiple freeze-thaw cycles.
Target Information
CD55 (decay-accelerating factor, DAF) is a GPI-anchored membrane glycoprotein that protects autologous cells from classical and alternative pathway of complement cascade. Bidirectional interactions between CD55 and CD97 are involved in T cell regulation and CD55 can regulate complement when bound to CD97. In tumors, CD55 promotes neoangiogenesis, tumorigenesis, invasiveness and evasion of apoptosis. 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 for CD55 and has a substantial content of O-glycans. CD55 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. CD55 carries the Cromer related blood group antigens. Two alternatively spliced transcripts encoding CD55 have been identified, and the predominant transcript encodes a membrane-bound protein expressed on cells exposed to plasma component proteins but an alternatively spliced transcript produces a soluble protein present at much lower levels. CD55 has been studied to have a role in prostate cancer growth and survival.
⚠WARNING: This product can expose you to chemicals including mercury, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: CD55; CD55 antigen; CD55 molecule, decay accelerating factor for complement (Cromer blood group); Complement decay-accelerating factor; RP11-357P18.1
Gene Aliases: CD55; CR; CROM; DAF; TC
UniProt ID: (Human) P08174
Entrez Gene ID: (Human) 1604
ER to Golgi vesicle-mediated transport
complement activation, classical pathway
positive regulation of cytosolic calcium ion concentration
regulation of complement activation
regulation of lipopolysaccharide-mediated signaling pathway
CD4-positive, alpha-beta T cell cytokine production
innate immune response
respiratory burst
negative regulation of complement activation
viral entry into host cell
positive regulation of CD4-positive, alpha-beta T cell activation
positive regulation of CD4-positive, alpha-beta T cell proliferation
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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