Annexin A2 (ANXA2), also known as lipocortin II or calpactin-1 heavy chain, is a 36kD member of the annexin superfamily that binds phospholipids and other proteins in a calcium-dependent manner via annexin repeats (1).
Annexin A2 contains four such repeats through which it mediates protein-protein and protein-lipid interactions (1-4).
It forms a constitutive heterotetramer with S100A10, acting as a bridge between the actin cytoskeleton, plasma membrane, and endocytotic vesicle machinery (5-7).
Originally identified as a protein inhibitor of phospholipase A2, annexin A2 has subsequently been shown to interact with an array of protein and non-protein partners, including F-actin, spectrin, SNARE complexes, RNA, and virus particles (4,6,8,9).
Annexin A2 has also been shown to have receptor-like activity and is detected on the surface of macrophages and vascular endothelial cells where it mediates macrophage activation and Factor Xa signaling, respectively (10-13).
Upregulation of annexin A2 at the cell surface is thought to be modulated by phosphorylation at Tyr23 by Src (14-18).
Interestingly, phosphorylation at Tyr23 has recently been shown to be required for cell surface expression of annexin A2 where it mediates motility, invasiveness, and overall metastatic potential of certain pancreatic cancer cells (19,20).
Applications:Suitable for use in Immunofluorescence and Western Blot.
Other applications not tested.
Recommended Dilution:Western Blot: 1:500-1:2000Immunofluorescence: 1:50-1:200Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:50ul
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by affinity chromatography.
Form:Supplied as a liquid in PBS, pH 7.3, 0.02% sodium azide, 50% glycerol.
Specificity:Recognizes ANXA2. Species Crossreactivity: human, mouse, rat
Isotype:IgG
Calc Applications Abbrev:IF WB
Calc Crossreactivity:Hu Mo Rt
Immunogen:Recombinant protein corresponding to human ANXA2.