Anti-Annexin A1/ANXA1 Antibody Picoband® Fluoro488 Conjugated

Annexin I, also known as lipocortin I (Lipo1), belongs to the family of annexins. These proteins are though to control the biosynthesis of the potent mediators of inflammation, prostaglandins and leukotrienes. In two lipocortins (I and II) a short amino-terminal sequence distinct from the core structure has potential regulatory functions which are dependent on its phosphorylation state. The gene in the mouse encodes a protein of 346 amino acid residues. Mouse Lipo1 gene spans about 17 kb and is divided into 13 exons. Annexin I gene, mapped to 9q11-q22, is located on mouse chromosome 19. Annexin I acts through the formyl peptide receptor on human neutrophils. Peptides derived from the unique N-terminal domain of annexin I serve as FPR ligands and trigger different signaling pathways in a dose-dependent manner.

Calcium/phospholipid-binding protein which promotes membrane fusion and is involved in exocytosis. This protein regulates phospholipase A2 activity. It seems to bind from two to four calcium ions with high affinity.

1. Wallner, B. P.; Mattaliano, R. J.; Hession, C.; Cate, R. L.; Tizard, R.; Sinclair, L. K.; Foeller, C.; Chow, E. P.; Browning, J. L.; Ramachandran, K. L.; Pepinsky, R. B. : Cloning and expression of human lipocortin, a phospholipase A2 inhibitor with potential anti-inflammatory activity. Nature 320: 77-81, 1986. . 2. Kovacic RT, Tizard R, Cate RL, Frey AZ, Wallner BP. Correlation of gene and protein structure of rat and human lipocortin I. Biochemistry. 1991 Sep 17;30 (37) :9015-21. 3. Walther, A.; Riehemann, K.; Gerke, V. A novel ligand of the formyl peptide receptor: annexin I regulates neutrophil extravasation by interacting with the FPR. Molec. Cell 5: 831-840, 2000.

Nucleus . Cytoplasm . Cell projection, cilium . Basolateral cell membrane . Found in the cilium, nucleus and basolateral cell membrane of ciliated cells in the tracheal endothelium. Found in the cytoplasm of type II pneumocytes and alveolar macrophages. .