Crystallographic studies of decay-accelerating factor (CD55)

Molecular and functional analysis of mouse decay accelerating factor (CD55).

Molecular cloning of mouse decay accelerating factor (DAF; CD55) predicted two forms of the molecule, one transmembrane (TM) and the other glycosylphosphatidylinositol (GPI)-anchored; these are encoded by separate genes termed Daf-GPI and Daf-TM. In the present study several additional isoforms of mouse DAF, generated by alternative splicing from these genes, are described. Northern-blot analys...

Decay accelerating factor (CD55): a target for cancer vaccines?

The 791Tgp72 antigen has been used successfully as a target for tumor imaging and T-cell immunotherapy. We have characterized this antigen using the monoclonal antibody 791T/36 as a 72/66 kDa doublet. NH2-terminal protein sequencing of the two bands revealed identity with the complement regulatory protein CD55. Antibodies recognizing different domains of CD55 were also shown to bind to the puri...

Human Decay-Accelerating Factor (CD55) Characterization of the Rat Analogue of Molecular Cloning and Functional

The Expression and Action of Decay-Accelerating Factor (CD55) in Human Malignancies and Cancer Therapy

Decay-accelerating factor (DAF, CD55) is physiologically acting as an inhibitor of the complement system, but is also broadly expressed in malignant tumours. Here DAF seems to exert different functions beyond its immunological role such as e.g. promotion of tumorigenesis, decrease of complement mediated tumor cell lysis, autocrine loops for cell rescue and evasion of apoptosis, neoangiogenesis,...

Decay accelerating factor (CD55)-mediated attenuation of complement: therapeutic implications for age-related macular degeneration.

PURPOSE Sequence variations in complement proteins are associated with age-related macular degeneration (AMD). The terminal pathway of complement results in the formation of the membrane attack complex (MAC) on the cell surface, resulting in their lysis. MAC has been documented on the retinal pigment epithelium (RPE), choroidal blood vessels, and drusen of AMD eyes. Here the investigators test ...