Anti-Puromycin [3RH11] Antibody

This monoclonal antibody to puromycin provides a non-radioactive method to measure rates of global protein synthesis (mRNA translation) in cells or tissue slices incubated with puromycin, or animals treated with puromycin in vivo.


  • Allows for the simple evaluation and quantification of translation directly using standard immunochemical methods
  • Advantageous alternative to traditional pulse-chase methods, which rely on radioactive amino acid labeling
  • Compatible with Western Blot and ELISA applications

Puromycin is an aminonucleoside antibiotic, derived from the Streptomyces alboniger bacterium, that causes premature chain termination during translation taking place in the ribosome. Part of the molecule resembles the 3' end of the aminoacylated tRNA, making it useful for protein translation analysis.

Classical pulse-chase or flooding dose methods used to monitor protein synthesis rely on the measurement of radioactive methionine and cysteine labels. Analysis using puromycin immunodetection is an advantageous alternative to radioactive amino acid labeling, and allows for the evaluation/quantification of translation directly using standard immunochemical methods.

From the laboratory of Scot R. Kimball, PhD, Penn State College of Medicine

Read related blog post, Puromycin Incorporation as a Measure of Global Protein Synthesis »

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Catalog Number Product Size AVAILABILITY Price Qty
Anti-Puromycin [3RH11] Antibody, 100ug
100ug In stock
Price: $219.00
Anti-Puromycin [3RH11] Antibody, 500ug
5x100ug In stock
Price: $900.00
Product Type: Antibody
Name: Anti-Puromycin (3RH11)
Isotype: IgG1 kappa
Clonality: Monoclonal
Clone Name: 3RH11
Specificity: This antibody recognizes puromycin.
Immunogen: puromycin hydrochloride
Host: Mouse
Format: Liquid
Buffer: PBS
Tested Applications: Western blotting (1:1,000), ELISA and Immunofluorescence microscopy.
Purity: Protein G purified
Storage: Store at 4C
Shipped: Cold packs
(A) C2C12 myoblasts were starved of serum and leucine for 2 hr and then IGF-1 and leucine were added to the medium of some of the cells for 45 min. Puromycin (1uM) was added to the medium of some of the cells (lanes 3-6) 30 min before harvest. (B) Quantification of western blot analysis from panel A. (C) In the same study, but in a separate set of culture dishes, cells were incubated with [35S]methionine instead of puromycin and incorporation was measured.


Scot R. Kimball, PhD

Scot R. Kimball, PhD
Penn State College of Medicine


Puromycin inhibits protein synthesis, which some cells may be more or less sensitive to. It is therefore highly recommended that the concentration of puromycin for protein translation assays be optimized for cell type.  The suggested concentration of puromycin is 1uM, but for cells that are more sensitive, lower concentrations of puromycin may give better results.

Because cell growth (and protein synthesis) slows dramatically as cell near confluence, it is recommended that experiments are performed during growth phase (40-50% confluence). Label with an optimized concentration of puromycin for at least 20-30 min.

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