Western blot analysis of ISG15(arrow) using rabbit polyclonal ISG15 Antibody (Center R87) . 293 cell lysates (2 ug/lane) either nontransfected (Lane 1) or transiently transfected with ISG15 gene (Lane 2) (Origene Technologies).
ISG15; G1P2; UCRP; Ubiquitin-like protein ISG15; Interferon-induced 15 kDa protein; Interferon-induced 17 kDa protein; Ubiquitin cross-reactive protein
Key Feature
Clonality
Polyclonal
Isotype
Ig
Host Species
Rabbit
Tested Applications
WB
WB:1:50~100
Species Reactivity
Human
Concentration
1mg/ml
Target Information
Gene Synonyms
G1P2 UCRP
Alternative Names
ISG15 G1P2 UCRP Ubiquitin-like protein ISG15 Interferon-induced 15 kDa protein Interferon-induced 17 kDa protein Ubiquitin cross-reactive protein
Molecular Weight(MW)
17888 Da
Function
Ubiquitin-like protein that is conjugated to intracellular target proteins after IFN-alpha or IFN-beta stimulation. Its enzymatic pathway is partially distinct from that of ubiquitin, differing in substrate specificity and interaction with ligating enzymes. ISG15 conjugation pathway uses a dedicated E1 enzyme, but seems to converge with the Ub conjugation pathway at the level of a specific E2 enzyme. Targets include STAT1, SERPINA3G/SPI2A, JAK1, MAPK3/ERK1, PLCG1, EIF2AK2/PKR, MX1/MxA, and RIG-1. Deconjugated by USP18/UBP43. Shows specific chemotactic activity towards neutrophils and activates them to induce release of eosinophil chemotactic factors. May serve as a trans-acting binding factor directing the association of ligated target proteins to intermediate filaments. May also be involved in autocrine, paracrine and endocrine mechanisms, as in cell-to-cell signaling, possibly partly by inducing IFN-gamma secretion by monocytes and macrophages. Seems to display antiviral activity during viral infections
Tissue Specificity
Detected in lymphoid cells, striated and smooth muscle, several epithelia and neurons
Cellular Localization
Cytoplasm. Secreted. Note=UCRP conjugates seem to be noncovalently associated with the intermediate filaments and distributed in a punctate pattern. Also secreted
Western blot analysis of ISG15(arrow) using rabbit polyclonal ISG15 Antibody (Center R87) . 293 cell lysates (2 ug/lane) either nontransfected (Lane 1) or transiently transfected with ISG15 gene (Lane 2) (Origene Technologies).
Application Notes
WB:1:50~100
Additional Information
Form
Liquid
Storage Instructions
For short-term storage, store at 4° C. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.
Storage Buffer
Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is prepared by Saturated Ammonium Sulfate (SAS) precipitation followed by dialysis against PBS.