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complement factor h  (Alexion Phrama)

 
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    Alexion Phrama complement factor h
    Complement Factor H, supplied by Alexion Phrama, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/complement+factor+h/complement+factor+h/us12508284-761-63-68
    Average 86 stars, based on 1 article reviews
    complement factor h - by Bioz Stars, 2026-10
    86/100 stars

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    Related Articles

    Membrane:

    Article Title: Photoreceptors and photoreceptor progenitors produced from pluripotent stem cells
    Article Snippet: .. In combination with the preparation of cells, one or more factors targeting C-5, membrane attack complex (C5b-9) and/or any other Drusen component may be administered, examples of which include inhibitors of complement factors D, C-3, C-3a, C5, and C5a, and/or agonists of factor H, such as ARC1905 (Ophthotec) (an anti-05 Aptamer that selectively inhibits C5), POT-4 (Potentia) (a compstatin derivative that inhibits C3), complement factor H, Eculizumab (Soliris, Alexion) (a humanized IgG antibody that inhibits C5), and/or FCFD4514S (Genentech, San Francisco) (a monoclonal antibody against complement factor D). ..



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    Image Search Results


    FHR5 1-9 FH 1-5 binds to C3, destabilizes C3 convertase and acts as a cofactor for factor I. Binding profiles of increasing amounts of FHR5 1-9 FH 1-5 to surface bound C3, C3b, iC3b, C3d and BSA (negative control), detected with both anti-CFHR5 (a) and anti-FH (b) antibodies. Data shown are mean values of triplicate measurements; error bars denote the standard deviation. C3a generated by convertase formation on surface-bound C3b: ELISA plates were coated with purified C3b. Surface C3 convertase was formed by addition of purified factor B (FB), factor D (FD), and properdin (P). Then increasing amounts of either FH (c) or the FHR5 1-9 FH 1-5 (d) were added followed by addition of C3 to enable C3a generation. To investigate factor I (FI) co-factor activity, FI along with increasing amounts of either FH (e) or the FHR5 1-9 FH 1-5 (f) were added prior to the convertase formation step. NC—negative control, no FB, FD, or P added. PC—positive control, no FH, or FHR5 1-9 FH 1-5 added. P values were determined by one-way ANOVA with Dunnett’s multiple comparisons test; **** P < 0.0001. Fluid phase co-factor assay products were visualized by western blotting (g). Cofactor activity was indicated by the cleavage of C3b as determined by the presence of C3 α-chain fragments (arrow). Negative controls: C3, C3b, C3b with FH, C3b with FI, and FHR5 1-9 FH 1-5 alone. Positive control: C3b incubated with FH and FI.

    Journal: Clinical and Experimental Immunology

    Article Title: A novel fusion protein reduces kidney complement in experimental C3 glomerulopathy

    doi: 10.1093/cei/uxag015

    Figure Lengend Snippet: FHR5 1-9 FH 1-5 binds to C3, destabilizes C3 convertase and acts as a cofactor for factor I. Binding profiles of increasing amounts of FHR5 1-9 FH 1-5 to surface bound C3, C3b, iC3b, C3d and BSA (negative control), detected with both anti-CFHR5 (a) and anti-FH (b) antibodies. Data shown are mean values of triplicate measurements; error bars denote the standard deviation. C3a generated by convertase formation on surface-bound C3b: ELISA plates were coated with purified C3b. Surface C3 convertase was formed by addition of purified factor B (FB), factor D (FD), and properdin (P). Then increasing amounts of either FH (c) or the FHR5 1-9 FH 1-5 (d) were added followed by addition of C3 to enable C3a generation. To investigate factor I (FI) co-factor activity, FI along with increasing amounts of either FH (e) or the FHR5 1-9 FH 1-5 (f) were added prior to the convertase formation step. NC—negative control, no FB, FD, or P added. PC—positive control, no FH, or FHR5 1-9 FH 1-5 added. P values were determined by one-way ANOVA with Dunnett’s multiple comparisons test; **** P < 0.0001. Fluid phase co-factor assay products were visualized by western blotting (g). Cofactor activity was indicated by the cleavage of C3b as determined by the presence of C3 α-chain fragments (arrow). Negative controls: C3, C3b, C3b with FH, C3b with FI, and FHR5 1-9 FH 1-5 alone. Positive control: C3b incubated with FH and FI.

    Article Snippet: After incubation and washing, bound FHR5 1-9 FH 1-5 was detected using goat polyclonal anti-CFHR5 antibody (R&D systems), followed by mouse anti-goat/sheep IgG-HRP (Sigma) and finally TMB substrate (BD).

    Techniques: Binding Assay, Negative Control, Standard Deviation, Generated, Enzyme-linked Immunosorbent Assay, Purification, Activity Assay, Positive Control, Western Blot, Incubation