Annexin I (ANXA1) Antibody – Rabbit Polyclonal

ANXA1: a calcium/phospholipid-binding protein with which promotes membrane fusion and is involved in endocytosis. Has anti-inflammatory properties and inhibits phospholipase A2 activity. Accumulates on internalized vesicles after EGF-stimulated endocytosis, suggesting that it may be required for a late stage in inward vesiculation. Phosphorylated by PKC, EGFR and Chak1. Phosphorylation results in loss of the inhibitory activity. Annexins are a family of structurally related proteins whose common property is calcium-dependent binding to phospholipids. There are at least ten different annexins in mammalian species. Annexins do not contain signal peptides, yet some annexins (A1, A2 and A5) appear to be secreted in a physiologically regulated fashion.

Protein type: Calcium-binding; Lipid-binding

Chromosomal Location of Human Ortholog: 9q21.13

Cellular Component: extracellular space; cell surface; protein complex; mast cell granule; focal adhesion; basolateral plasma membrane; extracellular region; cornified envelope; cilium; cytoplasm; mitochondrial membrane; plasma membrane; nucleus; vesicle; endosome; sarcolemma

Molecular Function: protein binding, bridging; protein homodimerization activity; calcium-dependent phospholipid binding; phospholipase A2 inhibitor activity; calcium ion binding; calcium-dependent protein binding; helicase activity; protein binding; single-stranded RNA binding; double-stranded DNA-dependent ATPase activity; phospholipid binding; structural molecule activity; single-stranded DNA binding; receptor binding

Biological Process: response to drug; prostate gland development; response to peptide hormone stimulus; positive regulation of neutrophil apoptosis; gliogenesis; alpha-beta T cell differentiation; positive regulation of vesicle fusion; neutrophil homeostasis; arachidonic acid secretion; signal transduction; endocrine pancreas development; DNA duplex unwinding; response to estradiol stimulus; regulation of cell proliferation; keratinocyte differentiation; cell surface receptor linked signal transduction; insulin secretion; DNA strand renaturation; peptide cross-linking; inflammatory response; cell motility; response to X-ray; positive regulation of prostaglandin biosynthetic process; negative regulation of apoptosis