| Function | Calcium-regulated membrane-binding protein whose affinity for calcium is greatly enhanced by anionic phospholipids. It binds two calcium ions with high affinity. May be involved in heat-stress response. Inhibits PCSK9-enhanced LDLR degradation, probably reduces PCSK9 protein levels via a translational mechanism but also competes with LDLR for binding with PCSK9. (Microbial infection) Binds M.pneumoniae CARDS toxin, probably serves as one receptor for this pathogen. When ANXA2 is down-regulated by siRNA, less toxin binds to human cells and less vacuolization (a symptom of M.pneumoniae infection) is seen. | 
  | Protein Name | Annexin A2Annexin IiAnnexin-2Calpactin I Heavy ChainCalpactin-1 Heavy ChainChromobindin-8Lipocortin IiPlacental Anticoagulant Protein IvPap-IvProtein IP36 | 
  | Database Links | Reactome: R-HSA-445355Reactome: R-HSA-6798695Reactome: R-HSA-75205Reactome: R-HSA-8950505 | 
  | Cellular Localisation | SecretedExtracellular SpaceExtracellular MatrixBasement MembraneMelanosomeIn The Lamina Beneath The Plasma MembraneIdentified By Mass Spectrometry In Melanosome Fractions From Stage I To Stage IvTranslocated From The Cytoplasm To The Cell Surface Through A Golgi-Independent Mechanism | 
  | Alternative ELISA Names | Annexin A2 ELISA kitAnnexin Ii ELISA kitAnnexin-2 ELISA kitCalpactin I Heavy Chain ELISA kitCalpactin-1 Heavy Chain ELISA kitChromobindin-8 ELISA kitLipocortin Ii ELISA kitPlacental Anticoagulant Protein Iv ELISA kitPap-Iv ELISA kitProtein I ELISA kitP36 ELISA kitANXA2 ELISA kitANX2 ELISA kitANX2L4 ELISA kitCAL1H ELISA kitLPC2D ELISA kit | 
  | Specificity | This kit recognizes Human ANXA2 in samples. No significant cross-reactivity or interference between Human ANXA2 and analogues was observed. | 
  | Reproducibility | Both intra-CV and inter-CV are | 
 
Information sourced from Uniprot.org
   | Item | Specifications | Storage | 
  | Micro ELISA Plate (Dismountable) | 96T: 8 wells ×12 strips strips | -20℃, 6 months | 
  | Reference Standard | 96T: 2 vials 48T: 1 vial | -20℃, 6 months | 
  | Concentrated Biotinylated Detection Ab (100×) | 96T: 1 vial, 120 μL 60 μL | -20℃, 6 months | 
  | Concentrated HRP Conjugate (100×) | 96T: 1 vial, 120 μL 60 μL | -20℃ (Protect from light), 6 months | 
  | Reference Standard & Sample Diluent | 1 vial, 20 mL | 2-8°C, 6 months | 
  | Biotinylated Detection Ab Diluent | 1 vial, 14 mL | 2-8°C, 6 months | 
  | HRP Conjugate Diluent | 1 vial, 14 mL | 2-8°C, 6 months | 
  | Concentrated Wash Buffer (25×) | 1 vial, 30 mL | 2-8°C, 6 months | 
  | Substrate Reagent | 1 vial, 10 mL | 2-8℃ (Protect from light) | 
  | Stop Solution | 1 vial, 10 mL | 2-8°C | 
  | Plate Sealer | 5 pieces |  | 
  | Manual | 1 copy |  | 
  | Certificate of Analysis | 1 copy |  | 
 
   | Sample Type | Range (%) | Average Recovery (%) | 
  | Serum(n=8) | 88-102 | 94 | 
  | EDTA plasma (n=8) | 93-108 | 99 | 
  | Cell culture media (n=8) | 92-107 | 98 | 
 
   |  | Intra-assay Precision | Intra-assay Precision | Intra-assay Precision | Inter-assay Precision | Inter-assay Precision | Inter-assay Precision | 
  | Sample | 1.00 | 2.00 | 3.00 | 1.00 | 2.00 | 3.00 | 
  | n | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | 
  | Mean (ng/mL) | 2.02 | 3.69 | 18.13 | 1.96 | 3.63 | 18.51 | 
  | Standard deviation | 0.14 | 0.20 | 0.94 | 0.14 | 0.16 | 0.78 | 
  | CV (%) | 6.93 | 5.42 | 5.18 | 7.14 | 4.41 | 4.21 |