Recombinant Human Ubl carboxyl-terminal hydrolase 18 (USP18)

Code CSB-EP891559HUb1
MSDS
Size $256
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Purity
Greater than 85% as determined by SDS-PAGE.
Target Names
USP18
Uniprot No.
Research Area
Cell Biology
Species
Homo sapiens (Human)
Source
E.coli
Expression Region
1-372aa
Target Protein Sequence
MSKAFGLLRQICQSILAESSQSPADLEEKKEEDSNMKREQPRERPRAWDYPHGLVGLHNIGQTCCLNSLIQVFVMNVDFTRILKRITVPRGADEQRRSVPFQMLLLLEKMQDSRQKAVRPLELAYCLQKCNVPLFVQHDAAQLYLKLWNLIKDQITDVHLVERLQALYTIRVKDSLICVDCAMESSRNSSMLTLPLSLFDVDSKPLKTLEDALHCFFQPRELSSKSKCFCENCGKKTRGKQVLKLTHLPQTLTIHLMRFSIRNSQTRKICHSLYFPQSLDFSQILPMKRESCDAEEQSGGQYELFAVIAHVGMADSGHYCVYIRNAVDGKWFCFNDSNICLVSWEDIQCTYGNPNYHWQETAYLLVYMKMEC
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
50.5 kDa
Protein Length
Full Length
Tag Info
N-terminal 10xHis-tagged and C-terminal Myc-tagged
Form
Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

Customer Reviews and Q&A

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Target Background

Function
Involved in the negative regulation of the inflammatory response triggered by type I interferon. Upon recruitment by STAT2 to the type I IFN receptor subunit IFNAR2 interferes with the assembly of the ternary interferon-IFNAR1-IFNAR2 complex and acts as a negative regulator of the type I IFN signaling pathway. Also regulates protein ISGylation. Can efficiently cleave only ISG15 fusions including native ISG15 conjugates linked via isopeptide bonds. Necessary to maintain a critical cellular balance of ISG15-conjugated proteins in both healthy and stressed organisms.; Has enzymatic activity similar to isoform 1 and interferes with type I interferon signaling. Major deISGylation enzyme for nuclear proteins.
Gene References into Functions
  1. These results demonstrate that virus-induced IFN-lambda4 potently blocks IFN-alpha signalling by inducing high protein levels of ISG15 and USP18. Moreover, the data clearly demonstrate that DAA therapy restores IFN-alpha responsiveness in HCV-infected cells. PMID: 28630501
  2. The role of USP18 in breast cancer provides a novel insight into the clinical application of the USP18/AKT/Skp2 pathway. PMID: 29749454
  3. High expression levels of USP18 in the muscles of dermatomyositis patients. PMID: 27605457
  4. study preliminary elucidated the role of USP18 in hepatitis B virus replication and explored the potential key genes in USP18-mediated signaling pathway PMID: 28369997
  5. this study identified PTEN as a previously unrecognized substrate of the ISGylation post-translational modification pathway. The deconjugase USP18 serves as a novel regulator of PTEN stability. This indicates inhibition of ISGylation is therapeutically relevant in cancers. PMID: 27980214
  6. associates with and deubiquitinates TAK1 to protect against hepatic steatosis, insulin resistance, and the inflammatory response PMID: 28718215
  7. that Ubiquitin-specific peptidase 18 directly bind to BCL2L1 and positively regulated its expression in hepatocellular carcinoma cells PMID: 28709980
  8. These findings add USP18 deficiency to the list of genetic disorders collectively termed type I interferonopathies PMID: 27325888
  9. We show that IRF-7 siRNA knockdown enhanced LPS-induced IL-10 production in human monocyte-derived macrophages, and USP-18 overexpression attenuated LPS-induced production of IL-10 in RAW264.7 cells. Quantitative PCR confirmed upregulation of USP18, USP41, IL10, and IRF7. An independent cohort confirmed LPS induction of USP41 and IL10 genes PMID: 27434537
  10. results indicated that USP18 modulates the anti-HBV activity of IFN-F via activation of the JAK/STAT signaling pathway in Hepg2.2.15 cells. PMID: 27227879
  11. USP18's ISG15 specificity is mediated by a small interaction interface. PMID: 28165509
  12. STAT2 recruits USP18 to the type I IFN receptor subunit IFNAR2 via its constitutive membrane-distal STAT2-binding site. PMID: 28165510
  13. findings show that multiple inflammatory stimuli can modulate interferon stimulated gene expression and thus inhibit hepatocyte interferon signaling via USP18 induction PMID: 27009955
  14. USP18 negatively regulates NF-kappaB signaling by targeting TAK1 and NEMO for deubiquitination through distinct mechanisms. PMID: 26240016
  15. Data suggest that USP18 (Ubiquitin-like specific protease 18) sensitive cellular functions include activity of the peptide transporters PEPT1 and PEPT2. PMID: 26046984
  16. Dimerization of IFNAR1 and IFNAR2 and the limiting role of IFNAR1 binding affinity in complex assembly is modulated by USP18. PMID: 26008745
  17. increased expression in the HIV+/HCV+ female patients group compared with HIV-/HCV+ and HIV+/HCV- groups PMID: 24955730
  18. USP18 expression levels induced by IFNbeta did not differ amongst multiple sclerosis patients carrying different rs2542109 genotypes PMID: 23700969
  19. USP18 inhibition induces inflammation by increasing the STAT signaling and exacerbates IFN-induced beta cell apoptosis. PMID: 23152055
  20. Usp18 upregulation was associated with Wilms Tumor. PMID: 23291318
  21. A direct relationship was found between UBP43 and cyclin D1 (but not cyclin E) expression. PMID: 22752428
  22. USP18 establishes the transcriptional and anti-proliferative interferon alpha/beta differential PMID: 22731491
  23. USP18 is up-regulated in liver samples of patients with chronic hepatitis C that did not respond to therapy, but not in patients with acute hepatitis C. PMID: 22677194
  24. although UBP43 depletion can cause hypersensitivity to interferon-alpha/beta-mediated apoptosis in a broad range of cell types, the downstream pathway may vary depending on the cell type. PMID: 22683641
  25. the existence of an N-terminal truncated isoform of USP18, whose expression is controlled on translational level by two independent mechanisms providing translational flexibility PMID: 22170061
  26. Inhibition of R. conorii-induced ISG15 by RNA interference results in significant increase in the extent of rickettsial replication, whereas UBP43 knockdown yields a reciprocal inhibitory effect. PMID: 22100648
  27. a model in which Usp18 inhibition promotes up-regulation of miR-7, which in turn inhibits EGFR expression and the tumorigenic activity of cancer cells. PMID: 21592959
  28. Findings define the ubiquitin protease UBP43 as a novel candidate drug target for APL treatment. PMID: 20935222
  29. Findings suggest that USP18 may significantly limit operation of the extrinsic apoptotic pathway triggered by type I IFN and drugs. PMID: 20068173
  30. UBP43 protein levels are regulated by proteolysis via the SCFSkp2 ubiquitin ligase PMID: 15342634
  31. Ubp43 deficiency increases the resistance to oncogenic transformation by BCR-ABL PMID: 17374743
  32. Epstein-Barr virus independent dysregulation of UBP43 expression alters interferon-stimulated gene expression in Burkitt lymphoma PMID: 19551150

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Involvement in disease
Pseudo-TORCH syndrome 2 (PTORCH2)
Subcellular Location
[Isoform 1]: Cytoplasm.; [Isoform 2]: Nucleus. Cytoplasm.
Protein Families
Peptidase C19 family
Database Links

HGNC: 12616

OMIM: 607057

KEGG: hsa:11274

STRING: 9606.ENSP00000215794

UniGene: Hs.38260

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