Name :
USP7 Protein
Description :
Ubiquitin carboxyl-terminal hydrolase 7, also known as Ubiquitin thioesterase 7, Herpesvirus-associated ubiquitin-specific protease, Ubiquitin-specific-processing protease 7, USP7 and HAUSP, is a widely expressed protein that belongs to the peptidase C19 family. USP7 is a member of the family of deubiquitinating enzymes. It is involved in the regulation of stress response pathways, epigenetic silencing and the progress of infections by DNA viruses. USP7 is a protein with a cysteine peptidase core, N- and C-terminal domains required for protein-protein interactions. USP7 contributes to epigenetic silencing of homeotic genes by Polycomb (Pc). USP7 cleaves ubiquitin fusion protein substrates. It deubiquitinates TP53/p53 and MDM2 and strongly stabilizes TP53 even in the presence of excess MDM2. USP7 also induces TP53-dependent cell growth repression and apoptosis. USP7 has key roles in the p53 pathway whereby it stabilizes both p53 and MDM2. Herpes simplex virus type 1 (HSV-1) regulatory protein ICP stimulates lytic infection and the reactivation of quiescent viral genomes. ICP interacts very strongly with USP7. USP7-mediated stabilization of ICP is dominant over ICP-induced degradation of USP7 during productive HSV-1 infection. The biological significance of the ICP-USP7 interaction may be most pronounced in natural infection situations, in which limited amounts of ICP are expressed.
Species :
Human
Uniprotkb :
Baculovirus-Insect Cells
Tag :
His,GST
Synonyms :
ubiquitin specific peptidase 7 (herpes virus-associated), HAUSP, TEF1
Construction :
A DNA sequence encoding the amino acid sequence (Lys 208-Glu 560) of human USP7 (NP_003461.2) was fused with the N-terminal polyhistidine-tagged GST tag at the N-terminus.
Protein Purity :
> 95 % as determined by SDS-PAGE
Molecular Weight :
Approxiamtely 68.8 kDa
Endotoxin :
Formulatione :
Lyophilized from sterile 50mM Tris, 100mM NaCl, 0. 5mM PMSF, 0. 5mM EDTA, pH 8.0. Pleasecon tact usfor any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background :
Ubiquitin carboxyl-terminal hydrolase 7, also known as Ubiquitin thioesterase 7, Herpesvirus-associated ubiquitin-specific protease, Ubiquitin-specific-processing protease 7, USP7 and HAUSP, is a widely expressed protein that belongs to the peptidase C19 family. USP7 is a member of the family of deubiquitinating enzymes. It is involved in the regulation of stress response pathways, epigenetic silencing and the progress of infections by DNA viruses. USP7 is a protein with a cysteine peptidase core, N- and C-terminal domains required for protein-protein interactions. USP7 contributes to epigenetic silencing of homeotic genes by Polycomb (Pc). USP7 cleaves ubiquitin fusion protein substrates. It deubiquitinates TP53/p53 and MDM2 and strongly stabilizes TP53 even in the presence of excess MDM2. USP7 also induces TP53-dependent cell growth repression and apoptosis. USP7 has key roles in the p53 pathway whereby it stabilizes both p53 and MDM2. Herpes simplex virus type 1 (HSV-1) regulatory protein ICP stimulates lytic infection and the reactivation of quiescent viral genomes. ICP interacts very strongly with USP7. USP7-mediated stabilization of ICP is dominant over ICP-induced degradation of USP7 during productive HSV-1 infection. The biological significance of the ICP-USP7 interaction may be most pronounced in natural infection situations, in which limited amounts of ICP are expressed.
References and Literature :
1. Zakut-Houri R.,et al.,(1985), Human p53 cellular tumor antigen: cDNA sequence and expression in COS cells. EMBO J. 4:1251-1255. 2. Lamb P.,et al., (1986), Characterization of the human p53 gene.Mol. Cell. Biol. 6:1379-1385. 3. Harlow E.,et al.,(1985), Molecular cloning and in vitro expression of a cDNA clone for human cellular tumor antigen p53.Mol. Cell. Biol. 5:1601-1610.
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