Below are a collection of excerpts from biomedical research articles. Excerpts are separated by newlines. Your task is to answer a question based these excerpts. Your response should be formatted as a `json` array.

For instance, given excerpts from articles studying breast cancer, and the question "what are some common genes associated with breast cancer?", an answer might be formatted like: ["BRCA1", "BRCA2", "TP53", ...]. Only include answers that are mentioned in the provided exerpts. The array should always have at least one answer; do not respond with an empty array []. Do not include any text in your response other than the answer array.

Context: Annexins are a highly conserved protein family that bind to phospholipids in a calcium (Ca2+) - dependent manner.
Highly conserved annexins may modulate the phagocytic cell removal by acting as bridging molecules to phosphatidylserine, a characteristic phagocytosis signal of dying cells.
the individual annexin repertoire bound to the cell surface of dying cells may fulfil opsonin-like function in cell death recognition.
Annexins are a family of soluble proteins that bind to acidic phospholipids such as phosphatidylserine in a calcium-dependent manner.
Annexin A2 is a member of the Annexin family that acts as a Ca2+-dependent phospholipid and membrane binding protein, which is associated with the survival and spread of multiple neoplasms.
underlying mechanisms specific for individual annexins, often supporting Ca2+ homeostasis and membrane transport as central for annexin biology.
fueled speculations about the possible membrane-spanning forms of annexins that functioned as ion channels.
potential role of Annexin A2 in the prevention and treatment of ovarian cancer.
irst, annexins are required for membrane organization and membrane transport events required for the establishment/maintenance of epithelial polarity. Second, there is accumulating evidence of an association of annexins with ion channels, as membrane-guiding auxiliary proteins or modulators of channel activity. Last but not least, some annexins seem to work as extracellular autocrine modulators of receptor function under different physiological conditions.

Question:
Which are the main functions of the annexin family?
["membrane organization and membrane transport events", "membrane-guiding auxiliary proteins or modulators of channel activity", "extracellular autocrine modulators of receptor function"]