Thermo Fisher Scientific CD55 Monoclonal Antibody (MEM-118), Alexa Fluor 488

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

4 µLx100 µL whole blood or 10^6 cells

-

Product Specifications

Species Reactivity

Human, Non-human primate

Host/Isotype

Mouse / IgM

Class

Monoclonal

Type

Antibody

Clone

MEM-118

Immunogen

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Conjugate

Alexa Fluor™ 488 Alexa Fluor™ 488 Alexa Fluor™ 488

View additional formats

• Unconjugated
• Alexa Fluor 647
• Biotin
• FITC
• Request custom conjugation

Excitation/Emission Max

499/520 nm View spectra

Form

Liquid

Purification

Size-exclusion chromatography

Storage buffer

TBS with 0.2% BSA

Contains

15mM sodium azide

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_2539520

Product Specific Information

This antibody recognizes an epitope in SCR4 domain of CD55 (Decay accelerating factor, DAF), a 60-70 kDa glycosylphosphatidylinositol (GPI)-anchored single chain extracellular glycoprotein. CD55 is widely expressed on hematopoietic and on many non-hematopoietic cells; it is weakly present on NK cells.

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.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.