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  • ABC225 - Anti-phospho USP7 (Ser18) Antibody

ABC225 Sigma-Aldrich

Anti-phospho USP7 (Ser18) Antibody

clone, from rabbit, purified by affinity chromatography

Synonym: Ubiquitin carboxyl-terminal hydrolase 7, Deubiquitinating enzyme 7, Herpesvirus-associated ubiquitin-specific protease, Ubiquitin thioesterase 7, Ubiquitin-specific-processing protease 7

  •  eCl@ss 32160702

  •  NACRES NA.41



Related Categories Alphabetical Index, Antibodies, Primary Antibodies, UH-UZ
clone   polyclonal
biological source   rabbit
application(s)   inhibition assay: suitable (peptide)
  western blot: suitable
species reactivity   human, human
species reactivity (predicted by homology)   rat (based on 100% sequence homology), Xenopus (based on 100% sequence homology), porcine (based on 100% sequence homology), mouse (based on 100% sequence homology)
shipped in   wet ice
Quality Level   100
antibody product type   primary antibodies
purified by   affinity chromatography
NCBI accession no.   NP_003461
UniProt accession no.   Q93009
Gene Information   human ... USP7(7874)


General description

Ubiquitin-specific-processing protease 7 (USP7) is also known as Ubiquitin carboxyl-terminal hydrolase 7 or Herpesvirus-associated ubiquitin-specific protease (HAUSP). USP7 is a ubiquitin specific protease or a deubiquitylating enzyme that cleaves ubiquitin from its substrates. Since ubiquitylation (polyubiquitination) is most commonly associated with the stability and degradation of cellular proteins, USP7 activity generally stabilizes its substrate proteins, and it is most popularly known as a direct antagonist of Mdm2, the E3 ubiquitin ligase for the tumor suppressor protein, p53.


Epitope: Near N-terminus

KLH-conjugated linear peptide corresponding to a region near the N-terminus of human USP7 phosphorylated at Ser18.


Peptide Inhibition Analysis: 0.2 µg/mL from a representative lot was blocked by a phospho-peptide in HeLa cell lysate.

Western Blotting Analysis: 0.02 µg/mL from a representative lot detected phospho USP7 (Ser18) in HeLa cell lysate (Prof. Grigory Dianov, University of Oxford, U.K.).

Western Blotting Analysis: 0.02 µg/mL from a representative lot detected 100 ng of phospho USP7 (Ser18), and not dephosphorylated USP7 (Prof. Grigory Dianov, University of Oxford, U.K.).

Alexa Fluor® is a registered trademark of Life Technologies.

Research Category
Apoptosis & Cancer

Research Sub Category
Apoptosis - Additional

This Anti-phospho USP7 (Ser18) antibody is validated for use in western blotting & peptide inhibition assay for the detection of phospho USP7 (Ser18).

Target description

~140 kDa observed

Physical form

Affinity Purfied

Purified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Legal Information

ALEXA FLUOR is a registered trademark of Life Technologies


Evaluated by Western Blotting in HeLa cell lysate.

Western Blotting Analysis: 0.2 µg/mL of this antibody detected phospho USP7 (Ser18) in 10 µg of HeLa cell lysate.

Safety & Documentation

Safety Information

Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


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Western Blot Protocol | Immunoblotting Protocol

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