CD55 (Extracellular region) (clone M002), anti-human

Background:
CD55, also known as Decay-accelerating factor (DAF) is an inhibitor of the complement system, and is broadly expressed in malignant tumours. In cancer, CD55 has been implicated in tumorigenesis, neoangiogenesis, and metastasis. CD55 may decrease complement mediated tumor cell lysis, inhibit tumor apoptosis, and promote invasive cancer cell motility. These roles in cancer may involve binding to the seven-span transmembrane receptor CD97. In neuroblastoma cells, CD55 contributes to growth of colonies and to invasion of cells, but not to stemness. In neuroblastoma cells, CD55 is upregulated in a small population of cells that are HIF-2α positive. This CD55 positive subpopulation is highly invasive and has low adhesion to fibronectin and collagen. In addition, CD55 expression correlates with poor prognosis in neuroblastoma patients.

Background References
Mikesch JH et al.(2006) Cell Oncol. 28(5-6):223.
Cimmino F et al. (2016) Oncogenesis 5:e212.

Immunogen: Clone M002 was generated from proprietary antigen related to the extracellular region of human CD55 from the MDA-MB-231 breast cancer cell line.

Specificity: Clone M002 detects 60-80 kDa* bands corresponding to the molecular mass of CD55 on SDS-PAGE immunoblots of "native" A431, A549, and MDA-MB-231 cell lysates. The antibody also detects a "native" recombinant human CD55 extracellular region, but does not detect the denatured form of CD55. The antibody works for native western blot, immunoprecipitation, protein ELISA, and immunocytochemistry.

Application dilution:
ELISA: 1:2000
ICC: 1:100
IP: 1:50
WB: 1:500
End user should determine optimal dilution for their particular applications and experiments.Western blot membranes were incubated with diluted antibody in 5% non-fat milk, PBS, 0.04% Tween20 for 1 hour at room temperature.

Buffer/Storage:
Mouse monoclonal antibody purified with protein G chromatography is supplied in 100µl phosphate-buffered saline, 50% glycerol, 1 mg/ml BSA, and 0.05% sodium azide. Store at –20°C. Stable for 1 year.