Active Annexin A1 (ANXA1)

ANX-A1; ANX1; LPC1; Lipocortin I; Chromobindin-9; Calpactin II; Phospholipase A2 inhibitory protein


Annexin A1 (ANXA1), also known as lipocortin I, belongs to the annexin family of Ca2 -dependent phospholipid-binding proteins that have a molecular weight of approximately 35,000 to 40,000 and are preferentially located on the cytosolic face of the plasma membrane. Annexin A1 protein has an apparent relative molecular mass of 40kDa with phospholipase A2 inhibitory activity. Besides, S100 Calcium Binding Protein A11 (S100A11) has been identified as an interactor of ANXA1, thus a binding ELISA assay was conducted to detect the interaction of recombinant mouse ANXA1 and recombinant mouse S100A11. Briefly, ANXA1 were diluted serially in PBS, with 0.01% BSA (pH 7.4). Duplicate samples of 100μL were then transferred to S100A11-coated microtiter wells and incubated for 2h at 37℃. Wells were washed with PBST and incubated for 1h with anti-ANXA1 pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody, wells were aspirated and washed 3 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37℃. Finally, add 50µL stop solution to the wells and read at 450nm immediately. The binding activity of ANXA1 and S100A11 was shown in Figure 1, and this effect was in a dose dependent manner.
Figure. The binding activity of ANXA1 with S100A11.


Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) to a concentration of 0.1-1.0 mg/mL. Do not vortex.


Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.


The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.



Magazine Citations
Plos one Dysregulation of Anti-Inflammatory Annexin A1 Expression in Progressive Crohns Disease PubMed: PMC3794972
African Journals Online Modulatory Effect of Phytoestrogens and Curcumin on Induction of Annexin 1 in Human Peripheral Blood Mononuclear Cells and their Inhibitory Effect on Secretory Phospholipase A2 Ajol: Source
Antimicrobial Agents and Chemotherapy Host Biomarkers of Invasive Pulmonary Aspergillosis to Monitor Therapeutic Response Asm: Source
J Proteomics Characterization of secretomes from a human blood brain barrier endothelial cells in-vitro model after ischemia by stable isotope labeling with aminoacids in cell culture (SILAC) PubMed: 26718731
Diabetes Annexin A1 Is a Key Modulator of Mesenchymal Stromal Cell–Mediated Improvements in Islet Function PubMed: 26470781
PLoS One Annexin A1 Is Increased in the Plasma of Preeclamptic Women PubMed: 26398190
中国现代医学杂志 China Journal of Modern Medicine 膜联蛋白A1 和CA19-9 在胆管癌中的表达及其临床意义 article:8686
arteriosclerosis thrombosis and vascular biology Protective Aptitude of Annexin A1 in Arterial Neointima Formation in Atherosclerosis-Prone Mice-Brief Report. pubmed:28062503
Clinical Science Mesenchymal stromal cells improve human islet function through released products and extracellular matrix. pubmed:29101297
Biomedicine & Pharmacotherapy Proresolving protein Annexin A1: The role in type 2 diabetes mellitus and obesity Pubmed:29677533
 International Journal of Chronic Obstructive Pulmonary Disease Annexin A1 is elevated in patients with COPD and affects lung fibroblast function Pubmed:29440885
Medical Mycology Applying host disease status biomarkers to therapeutic response monitoring in invasive aspergillosis patients Pubmed:29370415
Multiple sclerosis and related disorders Resolution of inflammation in neuromyelitis optica spectrum disorders Pubmed: 30300851
Acta Pharmaceutica Effects of annexin A1 on apoptosis and cell cycle arrest in human leukemic cell lines
Catalog No. Related products for research use of Mus musculus (Mouse) Organism species Applications (RESEARCH USE ONLY!)
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