United States (US)

Ubiquitin antibody


Cat No. GTX14372

Host Rabbit
Clonality Polyclonal
Isotype IgG
Application WB, ELISA, IHC

Application Note

*Optimal dilutions/concentrations should be determined by the researcher.
Application Dilution
WB 1:200 - 1:1,000
ELISA 1:1,000 - 1:5,000
IHC Assay dependent
Not tested in other applications.

Positive Control

Most yeast cell lysates can be used as a positive control without induction or stimulation




0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2 and 0.01% (w/v) Sodium Azide


Store as concentrated solution. Centrifuge briefly prior to opening vial. For short-term storage (1-2 weeks), store at 4ºC. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.


5 mg/ml (Please refer to the vial label for the specific concentration.)


This purified antibody was prepared from rabbit serum after repeated immunizations with ubiquitin coupled to rabbit IgG using glutaraldehyde.


IgG fraction
This antibody was purified from monospecific antiserum by a multi-step process which includes delipidation, salt fractionation and ion exchange chromatography followed by extensive dialysis against the buffer stated above. Assay by immunoelectrophoresis




For laboratory use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.

Cellular Localization

Cytoplasmic and Nuclear


Ubiquitin is a highly conserved protein of about 8.5 kDa molecular weight, which has a normal role in the targeting of proteins for proteolytic degradation. To perform this function, the protein to be degraded is first covalently attached to the C terminus of ubiquitin, and the ubiquitinated complex is then recognized by a complex of degradative enzymes. Interestingly, ubiquitin also becomes covalently bonded to many types of pathological inclusions, which appear to be resistant to normal degradation. Therefore, ubiquitin antibodies are very useful for studies of these inclusions. For example, the neurofibrillary tangles and paired helical filaments diagnostic of Alzheimer's disease, Lewy bodies seen in Parkinson's disease, and Pick bodies found in Pick's disease are all heavily ubiquitinated and can be readily visualized with ubiquitin antibodies.

GTX14372 WB Image

Western blot of Ubiquitin. Anti-Ubiquitin antibody (GTX14372), generated by immunization with Ubiquitin coupled to Rabbit IgG, was tested by western blot against total cell extract from yeast. Dilution of the antibody between 1:200 and 1:1,000 showed strong reactivity with Ubiquitinated proteins. In this blot the antibody was used at a 1:500 dilution incubated overnight at 4° C in 5% non-fat dry milk in TBST. Detection occurred using a 1:2,000 dilution of HRP-labeled Donkey anti-Rabbit IgG for 1 hour at room temperature.

Package List Price ($)
$ 329