Calcium/phospholipid-binding protein which promotes membrane fusion and is involved in exocytosis. Interacts with PDCD6. Isoform 1 is expressed in brain, heart and skeletal muscle. Isoform 2 is more abundant in liver, lung, kidney, spleen, fibroblasts and placenta. Belongs to the annexin family. 2 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Calcium-binding; Lipid-binding; Motility/polarity/chemotaxis