MW: 38,364 Da. Purity >95% as determined by SDS-PAGE. The annexins are a family of calcium-dependent phospholipids-binding proteins. Members of this family contain 4 internal repeat domains, each of which includes a type II calcium-binding site. These calcium-binding sites are required for annexins to aggregate and cooperatively bind anionic phospholipids and extracellular matrix proteins. The most striking feature of Annexin A9 is a complete ablation of all four homologous type II calcium-bindi