• Product name
  • Description
    Rabbit polyclonal to Annexin V
  • Host species
  • Tested applications
    Suitable for: WBmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Cow, Dog, Chimpanzee
  • Immunogen

    A reason within synthetic peptide: KSELTGKFEK LIVALMKPSR LYDAYELKHA LKGAGTNEKV LTEIIASRTP, corresponding to N terminal amino acids 70-119 of Human Annexin V

  • Positive control
    • HepG2 cell lysate.



Our Abpromise guarantee covers the use of ab30941 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 1.25 µg/ml. Detects a band of approximately 30 kDa (predicted molecular weight: 36 kDa). Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.


  • Function
    This protein is an anticoagulant protein that acts as an indirect inhibitor of the thromboplastin-specific complex, which is involved in the blood coagulation cascade.
  • Involvement in disease
    Pregnancy loss, recurrent, 3
  • Sequence similarities
    Belongs to the annexin family.
    Contains 4 annexin repeats.
  • Domain
    The [IL]-x-C-x-x-[DE] motif is a proposed target motif for cysteine S-nitrosylation mediated by the iNOS-S100A8/A9 transnitrosylase complex.
    A pair of annexin repeats may form one binding site for calcium and phospholipid.
  • Post-translational
    S-nitrosylation is induced by interferon-gamma and oxidatively-modified low-densitity lipoprotein (LDL(ox)) possibly implicating the iNOS-S100A8/9 transnitrosylase complex.
  • Information by UniProt
  • Database links
  • Alternative names
    • Anchorin CII antibody
    • Annexin 5 antibody
    • Annexin A5 antibody
    • Annexin V antibody
    • Annexin-5 antibody
    • ANX A5 antibody
    • ANX5 antibody
    • ANXA5 antibody
    • ANXA5_HUMAN antibody
    • Calphobindin I antibody
    • CBP-I antibody
    • Endonexin II antibody
    • ENX2 antibody
    • Lipocortin V antibody
    • PAP I antibody
    • PAP-I antibody
    • Placental anticoagulant protein 4 antibody
    • Placental anticoagulant protein I antibody
    • PLACENTAL PROTEIN 4 antibody
    • Pp4 antibody
    • Thromboplastin inhibitor antibody
    • VAC-alpha antibody
    • Vascular anticoagulant-alpha antibody
    see all


  • Anti-Annexin V antibody (ab30941) at 1.25 µg/ml (in 5% skim milk / PBS buffer) + HepG2 cell lysate

    HRP conjugated anti-Rabbit IgG at 1/50000 dilution

    Predicted band size: 36 kDa
    Observed band size: 30 kDa
    why is the actual band size different from the predicted?

    Gel concentration: 12%


This product has been referenced in:
  • Stopa JD  et al. Kinetic-based trapping by intervening sequence variants of the active sites of protein-disulfide isomerase identifies platelet protein substrates. J Biol Chem 292:9063-9074 (2017). Read more (PubMed: 28364042) »
  • Grzendowski M  et al. Differential proteome analysis of human gliomas stratified for loss of heterozygosity on chromosomal arms 1p and 19q. Neuro Oncol 12:243-56 (2010). WB ; Human . Read more (PubMed: 20167812) »
See all 2 Publications for this product

Customer reviews and Q&As


Thank you for contacting us and for your patience.

I have contacted the originator of anti-Annexin V antibody ab54775 and our other anti-Annexin V antibodies:

Unfortunately, it is not known whether ab54775 is capable of blocking Annexin V as this is not normally tested. Generally, it is testedif the antibody binding can be blocked, for example by using the immunogen - in this caserecombinant protein could be used to block antibody. However, we have no experience in using recombinant protein or other materials to block this antibody.
As the expression system of the recombinant protein was cell-free protein synthesis system (in vitro wheat germ protein expression system). Glycosylation and other natural eukaryotic modifications of synthesized protein do not take place in this cell-free system. Also, we are not sure whether recombinant protein will be folded correctly.

In general, we do not know whether any of our antibodies could block the Annexin V binding. The antibodies are specific for different domains of human Annexin V (for example ab108194 amino acids 296 - 320 which is in the fourth Annexin domain, http://www.uniprot.org/uniprot/P08758). If the binding to these domainsis sufficient to block Annexin V though, has not been determined yet.

Also, we currently do not have other products such as soluble phosphatidylserine in our catalogue which might be suitable for your experiments.

We are happy to help customers find the most suitable products for their research purposes; however we are not specialized in this particular field and do not want to recommend a product that may be unsuitable. We would encourage you to consult the latest literature available through PubMed and other resources in order to find the most up-to-date information about this specific research interests.

Should you decide to go ahead and test one of ourAnnexin V antibodies in blocking experiments, we encourage you to submit an Abreview of your results. We appreciate all customer feedback, whether positive or negative, and we make all product information available to researchers. To find out more about our Abreview system, please see the following webpage: https://www.abcam.com/abreviews

I am sorry that I could not be more helpful, but I hope that the available literature in this area can provide some clarification. Please do not hesitate to contact us again with other needs or with any questions about our products.

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