Anti-Annexin A1 Antibody

Nucleus, Cytoplasm, Cell projection, cilium, Cell membrane, Membrane, Endosome membrane, Basolateral cell membrane, Apical cell membrane, Lateral cell membrane, Secreted, Secreted, extracellular space, Cell membrane, Secreted, extracellular exosome, Cytoplasmic vesicle, secretory vesicle lumen, Cell projection, phagocytic cup, Early endosome, Cytoplasmic vesicle membrane

Reconstitute lyophilized antibody using ultrapure to a final concentration no less than 100 ug/mL. Reconstitution with PBS or Tris buffer is acceptable if required. Protein carrier, biocide or cryopreservative can be added as needed. Aliquot and store at -20C for longterm storage. Dilute immediately prior to use.

Plays important roles in the innate immune response as effector of glucocorticoid-mediated responses and regulator of the inflammatory process. Has anti-inflammatory activity (PubMed:8425544). Plays a role in glucocorticoid-mediated down-regulation of the early phase of the inflammatory response (By similarity). Contributes to the adaptive immune response by enhancing signaling cascades that are triggered by T-cell activation, regulates differentiation and proliferation of activated T-cells (PubMed:17008549). Promotes the differentiation of T-cells into Th1 cells and negatively regulates differentiation into Th2 cells (PubMed:17008549). Has no effect on unstimulated T cells (PubMed:17008549). Negatively regulates hormone exocytosis via activation of the formyl peptide receptors and reorganization of the actin cytoskeleton (PubMed:19625660). Has high affinity for Ca(2+) and can bind up to eight Ca(2+) ions (By similarity). Displays Ca(2+)-dependent binding to phospholipid membranes (PubMed:2532504, PubMed:8557678). Plays a role in the formation of phagocytic cups and phagosomes. Plays a role in phagocytosis by mediating the Ca(2+)-dependent interaction between phagosomes and the actin cytoskeleton (By similarity). {UniProtKB:P10107, UniProtKB:P19619, PubMed:17008549, PubMed:19625660, PubMed:2532504, PubMed:2936963, PubMed:8425544, PubMed:8557678}.; [Annexin Ac2-26]: Functions at least in part by activating the formyl peptide receptors and downstream signaling cascades (PubMed:22879591, PubMed:15187149, PubMed:25664854). Promotes chemotaxis of granulocytes and monocytes via activation of the formyl peptide receptors (PubMed:15187149). Promotes rearrangement of the actin cytoskeleton, cell polarization and cell migration (PubMed:15187149). Promotes resolution of inflammation and wound healing (PubMed:25664854). Acts via neutrophil N-formyl peptide receptors to enhance the release of CXCL2 (PubMed:22879591). {PubMed:15187149, PubMed:22879591, PubMed:25664854}.

Immunoblotting: use at 1-10ug/ml. A band of ~39kDa is detected. <br><br>Immunohistochemistry: use at 2- 20ug/ml. <br><br>Immunoprecipitation: use at 1-2ug per 100-500ug of total protein. <br><br>These are recommended concentrations. <br><br>End user should determine optimal concentrations for their applications.

This product is stable for at least one (1) year at -20°C to -70°C. Reconstituted product should be stored in appropriate aliquots to avoid repeated freeze-thaw cycles.

Annexin 1 belongs to a family of Ca(2+)- dependent phospholipid binding proteins which have molecular weights of approximately 35-40kDa and are localized on the cytosolic face of the plasma membrane. Annexin 1, an endogenous anti-inflammatory protein, has roles in many diverse cellular functions, such as membrane aggregation, inflammation, phagocytosis, proliferation, and apoptosis. Annexin 1 also possesses phosphorylation sites for important proliferative signaling molecules e.g., EGF receptor tyrosine kinase and PKC. This suggests that Annexin 1 may have a role in certain signaling pathways important in cancer. However, the exact mechanisms through which Annexin 1 exerts some or all of its effects are still not clearly understood, and may reveal important functions of Annexin 1 in tumorigenesis and cancer development.