Human Ubiquitin Cross Reactive Protein (UCRP) ELISA Kit | UCRP elisa kit

Human Ubiquitin Cross Reactive Protein (UCRP) ELISA Kit

Cat. Num. AAA453690

• Gene Names: ISG15; G1P2; IP17; UCRP; IFI15; IMD38; hUCRP
• Reactivity: Human
• Synonyms: Ubiquitin Cross Reactive Protein (UCRP); Human Ubiquitin Cross Reactive Protein (UCRP) ELISA Kit; G1P2; IFI15; ISG15; Interferon Alpha-Inducible Protein clone IFI-15K; Interferon Induced Protein 15; Interferon-induced 17 kDa protein; UCRP elisa kit

• Reactivity: Human
• Specificity: This assay has high sensitivity and excellent specificity for detection of UCRP. No significant cross-reactivity or interference between UCRP and analogues was observed.
• Sequence Length: 165

• Samples: Serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.
• Assay Type: Sandwich
• Detection Range: 31.25-2000pg/mL
• Sensitivity: 12.5pg/mL
• Intra-assay Precision: Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level UCRP were tested 20 times on one plate, respectively. Intra-Assay: CV<10%
• Inter-assay Precision: Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level UCRP were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100. Inter-Assay: CV<12%
• Preparation and Storage: For unopened kit, all reagents should be kept according to the labels on vials. The TMB Substrate, Wash Buffer, Stop Solution should be stored at 4 degree C. All others should be stored at -20 degree C.

Typical Testing Data/Standard Curve (for reference only)

Related Product Information for UCRP elisa kit

Intended Uses: This kit is a sandwich enzyme immunoassay for in vitro quantitative measurement of UCRP in human serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.

Principle of the Assay: The microtiter plate provided in this kit has been pre-coated with an antibody specific to UCRP. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody preparation specific to UCRP. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain UCRP, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm +/- 10nm. The concentration of UCRP in the samples is then determined by comparing the O.D. of the samples to the standard curve.

NCBI and Uniprot Product Information

• NCBI GI #: 4826774
• NCBI GeneID: 9636
• NCBI Accession #: NP_005092.1
• NCBI GenBank Nucleotide #: NM_005101.3
• UniProt Accession #: P05161; Q5SVA4; Q7Z2G2; Q96GF0
• Molecular Weight: 17,888 Da
• NCBI Official Full Name: ubiquitin-like protein ISG15
• NCBI Official Synonym Full Names: ISG15 ubiquitin-like modifier
• NCBI Official Symbol: ISG15
• NCBI Official Synonym Symbols: G1P2; IP17; UCRP; IFI15; IMD38; hUCRP
• NCBI Protein Information: ubiquitin-like protein ISG15
• UniProt Protein Name: Ubiquitin-like protein ISG15
• UniProt Gene Name: ISG15
• UniProt Synonym Gene Names: G1P2; UCRP; IP17; hUCRP

NCBI Description

The protein encoded by this gene is a ubiquitin-like protein that is conjugated to intracellular target proteins upon activation by interferon-alpha and interferon-beta. Several functions have been ascribed to the encoded protein, including chemotactic activity towards neutrophils, direction of ligated target proteins to intermediate filaments, cell-to-cell signaling, and antiviral activity during viral infections. While conjugates of this protein have been found to be noncovalently attached to intermediate filaments, this protein is sometimes secreted. [provided by RefSeq, Dec 2012]

Uniprot Description

Ubiquitin-like protein which plays a key role in the innate immune response to viral infection either via its conjugation to a target protein (ISGylation) or via its action as a free or unconjugated protein. ISGylation involves a cascade of enzymatic reactions involving E1, E2, and E3 enzymes which catalyze the conjugation of ISG15 to a lysine residue in the target protein. Its target proteins include IFIT1, MX1/MxA, PPM1B, UBE2L6, UBA7, CHMP5, CHMP2A, CHMP4B and CHMP6. Can also isgylate: EIF2AK2/PKR which results in its activation, DDX58/RIG-I which inhibits its function in antiviral signaling response, EIF4E2 which enhances its cap structure-binding activity and translation-inhibition activity, UBE2N and UBE2E1 which negatively regulates their activity, IRF3 which inhibits its ubiquitination and degradation and FLNB which prevents its ability to interact with the upstream activators of the JNK cascade therby inhibiting IFNA-induced JNK signaling. Exhibits antiviral activity towards both DNA and RNA viruses, including influenza A, HIV-1 and Ebola virus. Restricts HIV-1 and ebola virus via disruption of viral budding. Inhibits the ubiquitination of HIV-1 Gag and host TSG101 and disrupts their interaction, thereby preventing assembly and release of virions from infected cells. Inhibits Ebola virus budding mediated by the VP40 protein by disrupting ubiquitin ligase activity of NEDD4 and its ability to ubiquitinate VP40. ISGylates influenza A virus NS1 protein which causes a loss of function of the protein and the inhibition of virus replication. The secreted form of ISG15 can: induce natural killer cell proliferation, act as a chemotactic factor for neutrophils and act as a IFN-gamma-inducing cytokine playing an essential role in antimycobacterial immunity.