Synthetic peptide corresponding to residues surrounding Pro45 of human USP18 protein.
Ubiquitinating enzymes (UBEs) catalyze protein ubiquitination, a reversible process countered by deubiquitinating enzyme (DUB) action. Five DUB subfamilies are recognized, including the USP, UCH, OTU, MJD and JAMM enzymes. USP18 (also known as UBP43) is a deubiquitinase best known for catalyzing the removal of ISG15, an interferon-regulated ubibiquitin-like protein, from conjugated proteins. Removal of ISG15 from target proteins by the USP18 peptidase maintains the critical cellular balance of ISG15-conjugated proteins important for normal development and brain function. Following induction by IFN or LPS, USP18 binds the INF receptor subunit IFNAR2 and inhibits signal transduction through the JAK-STAT pathway. USP18 regulation of IFN signaling inhibits IFN-mediated apoptosis and does not necessarily rely on USP18 peptidase activity. As the therapeutic use of recombinant IFN can lead to refractory IFN signaling and a less effective response, the combination of IFN treatment and regulation of USP18 expression may produce a more positive outcome. Applications: Suitable for use in Western Blot and Immunoprecipitation. Other applications not tested. Recommended Dilutions: Western Blot: 1:1000. Incubate membrane with diluted antibody in TBS, 5% BSA, 0.1% Tween-20 at 4C with gentle shaking, overnight. Immunoprecipitation: 1:50 Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Clonality:
Monoclonal
Clone Designation:
[10g92D4E7]
Purity:
Purified
Form:
Supplied as a liquid in 10mM sodium HEPES pH 7.5, 150mM sodium chloride, 0.1mg/ml BSA, 0.02% sodium azide, 50% glycerol.
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