Catalog # AM0211

Annexin A1 M021 Antibody

Mouse Monoclonal

Application / Dilution

Size 100 μl

Species Reactivity Hu

MW 38 kDa

Isotype IgG1



The Annexin family is composed of at least thirteen mammalian genes (Annexin A1-13). These proteins are characterized by a conserved core domain which binds to phospholipids in a Ca2+-dependent manner and a unique amino terminal region which may confer binding specificity. Annexins have roles in membrane fusion, endocytosis, secretion, and repair. Annexin A1 binds to cellular membranes in a calcium-dependent manner, promotes membrane fusion and endocytosis, and has been implicated as an anti-inflammatory mediator. Annexin A2 is a cytoskeletal calcium-dependent phospholipid binding protein, which has been shown to be a mediator of corticosteroid activity, a substrate for serine/threonine kinases and growth regulated tyrosine kinases, and may play a role in secretion. Annexin A5 is a PKC inhibitor, directly interacts with VEGFR2 receptor, and binds phosphatidylserine to inhibit blood coagulation. Annexin A6 reverses transformation of A431 cells after overexpression, and this effect may involve annexin A6 targeting of p120 RasGAP to the plasma membrane to inactivate Ras.


Boye TL & Nylandsted J (2016) Biol Chem. 397(10):961.
Hoque M et al. (2014) Cell Signal. 26(6):1213.
Grewal T & Enrich C (2009) Cell Signal. 21(6):847.

Western blot of human A431 cells (lane 1), A549 cells (lane 2), LNCaP cells (lane 3), full-length recombinant human annexin A1 (lane 4), and recombinant human annexin A2 (lane 5). The blot was probed with mouse monoclonal anti-Annexin A1 antibody (AM0211) at 1:1000 (lanes 1-5).

Immunocytochemical labeling of Annexin A1 in paraformaldehyde fixed human A549 cells. The cells were labeled with mouse monoclonal anti-Annexin A1 (clone M021). The antibody was detected using goat anti-mouse Ig DyLight® 594.

Clone M021 was generated from a proprietary antigen related to human Annexin A1 in the A549 lung carcinoma cell line.

*For more information, see UniProt Accession P04083
Mouse monoclonal, protein G purified antibody is supplied in 100 µl phosphate-buffered saline, 50% glycerol, 1 mg/ml BSA, and 0.05% sodium azide. Store at -20°C. Stable for 1 year.

The products are are safely shipped at ambient temperature for both domestic and international shipments. Each product is guaranteed to match the specifications as indicated on the corresponding technical data sheet. Please store at -20C upon arrival for long term storage.

Clone M021 detects a 38 kDa* protein corresponding to the molecular mass of Annexin A1 on SDS-PAGE immunoblots of human A431, MDA-MB-231, and A549. The antibody also detects full length recombinant human Annexin A1, but not Annexin A2 or Annexin A5 recombinant proteins. The antibody works for western blot, ELISA, immunocytochemical labeling, and immunoprecipitation.

*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.

This kit contains: