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Transcript
Structure and function of the von Willebrand factor A1
domain: analysis with monoclonal antibodies reveals
distinct binding sites involved in recognition of the platelet
membrane glycoprotein Ib-IX-V complex and ristocetindependent activation
by Mariagrazia De Luca, David A. Facey, Emmanuel J. Favaloro, Mark S. Hertzberg,
James C. Whisstock, Tracy McNally, Robert K. Andrews, and Michael C. Berndt
Blood
Volume 95(1):164-172
January 1, 2000
©2000 by American Society of Hematology
Mapping the epitope for the anti-vWf monoclonal antibody, 6G1.Inhibition of binding of 125Ilabeled monoclonal antibody 6G1 (final concentration, 1 μg/mL) to immobilized vWf by synthetic
peptides (final concentration, 100 μM) in 30 minutes at 22°C.
Mariagrazia De Luca et al. Blood 2000;95:164-172
©2000 by American Society of Hematology
Epitopes for anti-vWf monoclonal antibodies.Structure of the von Willebrand factor A1 domain
based on the x-ray crystal coordinates25 with highlighted sequences representing epitopes for
the anti-39/34-kd vWf fragment monoclonal antibodies determined using ...
Mariagrazia De Luca et al. Blood 2000;95:164-172
©2000 by American Society of Hematology
Cross blocking of anti-vWf monoclonal antibodies.Binding of 125I-labeled monoclonal
antibodies (final concentration, 1 μg/mL) to immobilized native vWf (A-D) or 39/34-kd vWf
fragment (E-F) in 30 minutes at 22°C.
Mariagrazia De Luca et al. Blood 2000;95:164-172
©2000 by American Society of Hematology
Effect of anti-vWf monoclonal antibodies on vWf binding to platelets.Antibodies (final
concentration, 50 μg/mL) were included in assays measuring binding of 125I-labeled vWf (1
μg/mL) to GP Ib-IX-V on washed platelets induced by (A) botrocetin (25 μg/mL), (...
Mariagrazia De Luca et al. Blood 2000;95:164-172
©2000 by American Society of Hematology
Effect of anti-vWf monoclonal antibodies on vWf binding to botrocetin or jaracetin.Antibodies
(final concentration, 50 μg/mL) were included in assays measuring binding of 125I-labeled vWf (1
μg/mL) to (A) botrocetin-coated beads or (B) jaracetin-coated bead...
Mariagrazia De Luca et al. Blood 2000;95:164-172
©2000 by American Society of Hematology
Effect of the anti-vWf monoclonal antibody 6G1 on binding of the 39/34-kd vWf fragment to
platelets.(A) Specific binding of 125I-labeled 39/34-kd vWf fragment (final concentration, 1
μg/mL) to washed platelets (final concentration, 5 × 108/mL) in the presen...
Mariagrazia De Luca et al. Blood 2000;95:164-172
©2000 by American Society of Hematology