• Product name
    Anti-Streptavidin antibody [S10D4]
    See all Streptavidin primary antibodies
  • Description
    Mouse monoclonal [S10D4] to Streptavidin
  • Host species
  • Specificity
    Does not cross react with egg white avidin. Binds to Streptavidin without interfering with the biotin-binding reaction.
  • Tested applications
    Suitable for: ICC, WB, IHC-P, IHC-Fr, ICC/IF, Other, ELISA, Flow Cytmore details
  • Species reactivity
    Reacts with: Species independent
  • Immunogen


  • General notes

    Concentration varies from lot to lot and can be provided on request.



  • Form
  • Storage instructions
    Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
  • Storage buffer
    Preservative: 0.1% Sodium Azide
    Constituents: PBS, pH 7.4
  • Concentration information loading...
  • Purity
  • Purification notes
    Purified from ascites.
  • Clonality
  • Clone number
  • Isotype
  • Research areas


Our Abpromise guarantee covers the use of ab10020 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
ICC Use at an assay dependent concentration.
WB Use at an assay dependent concentration. Predicted molecular weight: 19 kDa.
IHC-P Use at an assay dependent concentration.
IHC-Fr Use at an assay dependent concentration.
ICC/IF Use at an assay dependent concentration.
Other Use at an assay dependent concentration.
ELISA Use at an assay dependent concentration.
Flow Cyt Use at an assay dependent concentration.

ab170190 - Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.


AP Use at an assay dependent concentration.


  • Relevance
    Streptavidin is a tetrameric protein purified from Streptomyces sp. that binds very tightly to the vitamin biotin with a Kd of ~ 10-14 mol/l. The high affinity recognition of biotin and biotinylated molecules has made streptavidin one of the most important components in diagnostics and laboratory kits.
  • Cellular localization
  • Alternative names
    • SA V1 antibody
    • SA V2 antibody
    • strepavidin antibody
    • Streptavidin V1 antibody
    • Streptavidin V2 antibody
    see all


  • Immunofluorescence analysis of Potorous tridactylis kidney (PtK2) cells, staining Streptavidin with ab10020.

    Cells were fixed with 4% paraformaldehyde, before being incubated with wt streptavidin (2 µM) for 5 min at room temperature. Samples were incubated with 1 µL primary antibody for 1 hour at 4°C. A FITC-conjugated goat anti-mouse IgG was used as the secondary antibody.


This product has been referenced in:
  • Bertuccio CA  et al. Anterograde trafficking of KCa3.1 in polarized epithelia is Rab1- and Rab8-dependent and recycling endosome-independent. PLoS One 9:e92013 (2014). Read more (PubMed: 24632741) »
  • Dykstra T  et al. Defined particle ligands trigger specific defense mechanisms of macrophages. Innate Immun 17:388-402 (2011). Read more (PubMed: 20682584) »
See all 4 Publications for this product

Customer reviews and Q&As

1-8 of 8 Abreviews or Q&A

Western blot
Loading amount
20 µg
Gel Running Conditions
Reduced Denaturing (8.5% gel)
Human Cell lysate - whole cell (HEK 293)
HEK 293
Blocking step
Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 20°C

Abcam user community

Verified customer

Submitted Feb 18 2014


Normally 10-50 ug of lysate protein is required for an antibody detection in western blot, however if you want to detect amount lower than this then you may need to isolate the protein or purify the protein form the cell lysates. e.g. antibody can easily detect 10-100 ng of purified protein.

Secondly you would need a strong detecting reagents e.g. https://www.abcam.com/optiblot-ecl-max-detect-kit-46pg-47ng-ab133408.html which can detect the antibody dilution 1/5000 to 1/20,000 with protein concentration in picogram.

The other products in this range are



Sensitivity of the antibody is also a primary factor for detection limit however you can try these products as required.

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Vielen Dank für Ihre Anfrage.

Die Konzentration dieses Antikörpers ist davon abhängig, wie viel Streptavidin in Ihrem System eingesetzt wird.

Ein Kunde hat laut einer Rezession diesen Antikörper in einer 1/500 Verdünnung eingesetzt, und hervorragende Ergebnisse erzielt: https://www.abcam.com/index.html?datasheet=10020&tab=abreviews&intabreviewid=11954

Wir geben in unseren FAQs die Empfehlung, die Startkonzentration bei der ICC / IHC auf 5ug/ml einzustellen, um den Antikörper dann dementsprechend zu optimieren.

Ich hoffe, dies hilft Ihnen weiter. Bitte zögern Sie nicht, sich wieder bei uns zu melden, falls Sie weitere Fragen haben.

Benutzen Sie unsere Produkte? Schicken Sie uns einen Abreview. Verdienen Sie sich eine Belohnung!

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Thank you for contacting Abcam.

I think any of the any of the antibodies you are interested in would work for you in your desired applications. As they are mouse monoclonals, you may see some mouse on mouse staining and unfortunately we do not have information as to which would give the least cross reactivity.

However we do have the following kit that will reduce the mouse on mouse staining that you may see:


If there is anything else I can help you with, please let me know.

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Vielen Dank für Ihren Anruf.

Wie versprochen habe ich genauer in den Laboren nachgefragt, die unsere Streptavidin-Antikörper herstellen, und dabei hat sich herausgestellt, dass unsere monoklonalen anti-Streptavidin-Antikörper (ab10020-10023), die Sie angesprochen hatten, jeweils das gesamte Streptavidin erkennen - die Epitope wurden unseres Wissens leider nicht kartiert - und hauptsächlich für die Amplifikation von Signalen in verschiedenen Anwendungen wie Immunhistochemie verwendet werden.

Wenn ich Sie richtig verstanden hatte, sind Sie jedoch an einem Antikörper gegen ein C-terminales Strep-tag interessiert, was ja vom oben implizierten Biotin/Streptavidin-System verschieden ist. Gegen dieses Strep-tag hätten wir ab76949 im Katalog, der das Strep-tag der angegebenen Sequenz unabhängig davon erkennt, ob es C- oder N-terminal lokalisiert ist:
Click here (or use the following: https://www.abcam.com/index.html?datasheet=76949).

Wir können garantieren, dass dieser Antikörper im Western blot funktioniert (www.abcam.com/Abpromise). Wie er sich in Lateral Flow Assays macht (die bei uns quasi als Sandwich ELISA=sELISA) geführt werden), wissen wir leider nicht, da wir ihn bisher nur im Western blot getestet haben. Sollte Ihnen der polyklonale ab76949 für Ihre Versuchsvorhaben geeignet erscheinen, würden wir uns vor dem Kauf über ein paar mehr Informationen zu Ihren Versuchen freuen, denn eventuell können wir Sie in unser Testprogramm mit aufnehmen (www.abcam.com/collaborationdiscount).

Ich hoffe, dies hilft Ihnen weiter. Bitte zögern Sie nicht, sich wieder bei uns zu melden, falls Sie weitere Fragen haben.

Read More


Thank your for your inquiry.

I can confirm that ab59320 is now unpublished and not available any more. I am sorry if this causes any inconvenience.

ab6676 is a polyclonal antibody that has the whole streptavidin molecule as immunogen. It was not tested if the binding sites of biotin are blocked, but we expect this due to the polyclonal nature of this antibody. This is not part of the Abpromise guarantee.

ab10022 reacts with the target protein at a non-overlapping epitope with ab10023, ab10020 and ab10021 epitopes. However, we have not determined the exact epitopes for these antibodies. We are confident all these antibodies bind to streptavidin without interfering with the biotin-binding reaction.

I hope this information is helpful for your customer. Please let me know if there are any other questions.

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Abcam guarantees this product to work in the species/application used in this Abreview.
Rat Cultured Cells (hippocampal neurons)
hippocampal neurons
Blocking step
BSA as blocking agent for 15 minute(s) · Concentration: 3% · Temperature: 20°C

Abcam user community

Verified customer

Submitted Sep 11 2008


Thank you for your enquiry. The affinity constant of ab10020 has been determined to be >1x10E8. Please do not hesitate to contact us if you have additional questions.

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