von willebrand factor a3 domain. defects and deficiencies cause bleeding diseases.

von willebrand factor a3 domain defects deficiencies cause bleeding diseases pdb4dmu blood plasma clotting coagulation vwf disease purpura thrombotic thrombosis thrombus clot collagen diathesis structure peptide protein amino acid molecule polypeptide polymer atoms science scientific health molecular model bound cartoon line representation combined semitransparent surfaces