FITC anti-HA.11 Epitope Tag Antibody (Previously Covance catalog# FITC-101L)

Pricing & Availability
16B12 (See other available formats)
Regulatory Status
Other Names
HA epitope tag, HA1, HA2, hemagglutinin, Hemagglutinin HA1 chain, Hemagglutinin HA2 chain, YPYDVPDYA, Hemagglutinin tag
Covance Catalog# FITC-101L
Mouse IgG1, κ
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Product Citations
Transfected RBL1 cells expressing the HA tag on the cell surface were stained with anti-HA.11 Epitope Tag (clone 16B12) FITC (filled histogram) or mouse IgG1, κ FITC isotype control (open histogram).
  • 16B12_FITC_HA11_Antibody_071923
    Transfected RBL1 cells expressing the HA tag on the cell surface were stained with anti-HA.11 Epitope Tag (clone 16B12) FITC (filled histogram) or mouse IgG1, κ FITC isotype control (open histogram).
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901507 100 µL 336€
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The HA tag (hemagglutinin) is an amino acid sequence derived from the human influenza hemagglutinin surface glycoprotein, corresponding to amino acids 98-106.  It is commonly used as a tag to facilitate detection, isolation, and purification of proteins. The full amino acid sequence is: YPYDVPDYA.

Product Details
Technical Data Sheet (pdf)

Product Details

Antibody Type
Host Species
Monoclonal antibody HA.11 was raised against the twelve amino acid peptide CYPYDVPDYASL.
Phosphate-buffered solution + 0.03% Thimerosal + 50% Glycerol.
The antibody was purified by affinity chromatography.
1 mg/mL
Storage & Handling
Store between 2°C and 8°C.

FC - Quality tested
ICC - Verified

Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 0.5 µg per million cells in 100 µL volume. It is recommended that the reagent be titrated for optimal performance for each application.

The optimal working dilution should be determined for each specific assay condition.
IF: 1:1,000

Excitation Laser
Blue Laser (488 nm)
Application Notes

Additional tested and reported applications of the 16B12 clone for the relevant formats include: western blot (WB), immunocytochemistry (ICC), immunoprecipitation (IP), and flow cytometry (FC).

*Our Posi-Tag Control Protein (931301) can be used as a helpful positive control for this antibody.

This second-generation HA antibody is an excellent substitute for the 12CA5 monoclonal antibody. The HA.11 antibody recognizes the influenza hemagglutinin epitope (YPYDVPDYA) which has been used extensively as a general epitope tag in expression vectors. The extreme specificity of the antibody allows unambiguous identification and quantitative analysis of the tagged protein. The HA.11 antibody recognizes HA epitopes located in the middle of protein sequences as well as at the N- or C-terminus.

Application References
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Product Citations
  1. Ma YV, et al. 2021. MAbs. 13:2003281. PubMed
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AB_2565058 (BioLegend Cat. No. 901507)

Antigen Details

Biology Area
Cell Biology
Gene ID
View information about HA.11 on

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Go To Top Version: 7    Revision Date: 07/19/2023

For Research Use Only. Not for diagnostic or therapeutic use.


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