Epitope Tag & Loading Control Antibodies
The proteins that normally serve as internal controls in your research may not always take center
stage, but they are indispensable for conducting meaningful research, most notably for the proper interpretation of
Western blots.
Loading control proteins and protein tags provide a reference to evaluate the changes in expression
levels of target proteins and help to ensure that any increase or decrease in target protein levels is due to your
experimental manipulations, and not due to errors in the Western blot procedure. Proteintech tag and control antibodies
are $189 each, including popular controls such as GAPDH, Tubulin and Actin.
Use our table below to help select a loading control for your sample type with a different molecular weight to your protein of interest.
| Whole cell/cytoplasmic | Nuclear | Mitochondrial | Serum | ||||
| Loading control | MW (kDa) | Loading control | MW (kDa) | Loading control | MW (kDa) | Loading control | MW (kDa) |
| Vinculin | 117 | ||||||
| Transferrin | 77 | ||||||
| Lamin B1 | 66 | ||||||
| HDAC1 | 65 | ||||||
| α-tubulin | 52 | ||||||
| β-tubulin | 50 | ||||||
| β-actin | 42 | ||||||
| GAPDH | 36 | TBP (rodent) | 33-36 | ||||
| PCNA | 36 | VDAC1/Porin | 36 | ||||
| TBP (human) | 37-43 | ||||||
| COXIV | 19 | ||||||
| Histone H3 | 16 | ||||||
Proteintech offers a variety of antibodies for the identification, immunoprecipitation, and purification of proteins with genetically engineered epitope tags.
Articles
$189 control antibodies
Proteintech control antibodies are just $189 each (150ul).
Non visible textTubulin antibodies
Cracking the tubulin code: diversity in cells and microtubular organelles.
Non visible textWestern Blot tips for low molecular weight proteins
Your western blot can suffer from limitations when working with low molecular weight proteins. Find out how to achieve the best results.
Non visible text$189 control antibodies
Proteintech control antibodies are just $189 each (150ul).
Beta Actin antibody
In western blotting, beta-actin is commonly chosen as a loading control due to its broad and consistent expression across all eukaryotic cell types.
Non visible textTubulin antibodies
Cracking the tubulin code: diversity in cells and microtubular organelles.
Western Blot tips for low molecular weight proteins
Your western blot can suffer from limitations when working with low molecular weight proteins. Find out how to achieve the best results.
Non visible textLoading control antibodies for western blotting
Technical tips and related products
Lysate Preparation: Why is RIPA Buffer Best for Western Blot?
Proteintech investigates why RIPA buffer is best for western blot