Key features and details
- Expression system: Escherichia coli
- Purity: > 70% SDS-PAGE
- Active: Yes
- Tags: His tag N-Terminus
- Suitable for: Functional Studies, SDS-PAGE
Product nameRecombinant human UBPY/USP8 protein (Active)
See all UBPY/USP8 proteins and peptides
ab269128 specific activity was determined to be 80 nmol/min/mg in a DUB assay using recombinant human ubiquitin-based proluciferin substrate.
Purity> 70 % SDS-PAGE.
Expression systemEscherichia coli
Protein lengthProtein fragment
Sequence630 - end
Molecular weight informationApprox 55 kDa by SDS-PAGE
TagsHis tag N-Terminus
Additional sequence informationNM_005154
Our Abpromise guarantee covers the use of ab269128 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Preparation and Storage
Stability and Storage
Shipped on Dry Ice. Upon delivery aliquot. Store at -80°C. Avoid freeze / thaw cycle.
Preservative: 1.02% Imidazole
Constituents: 0.82% Sodium phosphate, 1.74% Sodium chloride, 0.002% PMSF, 0.004% DTT, 25% Glycerol (glycerin, glycerine)
This product is an active protein and may elicit a biological response in vivo, handle with caution.
- Deubiquitinating enzyme 8
FunctionHydrolase that can remove conjugated ubiquitin from proteins and therefore plays an important regulatory role at the level of protein turnover by preventing degradation. Converts both 'Lys-48' an 'Lys-63'-linked ubiquitin chains. Catalytic activity is enhanced in the M phase. Involved in cell proliferation. Required to enter into S phase in response to serum stimulation. May regulate T-cell anergy mediated by RNF128 via the formation of a complex containing RNF128 and OTUB1. Probably regulates the stability of STAM2 and RASGRF1. Regulates endosomal ubiquitin dynamics, cargo sorting, membrane traffic at early endosomes, and maintenance of ESCRT-0 stability. The level of protein ubiquitination on endosomes is essential for maintaining the morphology of the organelle. Deubiquitinates EPS15 and controles tyrosine kinase stability. Removes conjugated ubiquitin from EGFR thus regulating EGFR degradation and downstream MAPK signaling. Involved in acrosome biogenesis through interaction with the spermatid ESCRT-0 complex and microtubules. Deubiquitinates BIRC6/bruce and KIF23/MKLP1.
Sequence similaritiesBelongs to the peptidase C19 family.
Contains 1 MIT domain.
Contains 1 rhodanese domain.
Contains 1 USP domain.
DomainThe MIT domain is required for endosomal localization, CHMP1B-binding, maintenance of ESCRT-0 stability and EGFR degradation.
The rhodanese domain is sufficient for RNF41-binding.
modificationsPhosphorylation of Ser-718 is essential for interaction with YWHAE and for cytosol localization. Undergoes dephosphorylation at Ser-718 in the M phase. Tyrosine-phosphorylated in its N-terminal half in an EGFR-dependent manner.
Ubiquitinated. Inactive form is mostly monoubiquitinated, but polyubiquitination happens too. Ubiquitination is increased in EGF-stimulated cells. Ubiquitination of active form is undetectable, suggesting a possibility that USP8 deubiquitinates itself, thereby regulating its own function.
Cellular localizationCytoplasm. Nucleus. Endosome membrane. Cell membrane.
- Information by UniProt
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
ab269128 has not yet been referenced specifically in any publications.