OAS2 ELISA Kit (Human)

Intra-assay Precision (Precision within an assay) : 3 samples with low, middle and high level 2',5'-Oligoadenylate Synthetase 2 (OAS2) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays) : 3 samples with low, middle and high level 2',5'-Oligoadenylate Synthetase 2 (OAS2) were tested on 3 different plates, 8 replicates in each plate. CV (%) = SD/meanX100 Intra-Assay: CV<10% Inter-Assay: CV<12%

Interferon-induced, dsRNA-activated antiviral enzyme which plays a critical role in cellular innate antiviral response (PubMed:10464285, PubMed:9880569) . Activated by detection of double stranded RNA (dsRNA) : polymerizes higher oligomers of 2'-5'-oligoadenylates (2-5A) from ATP which then bind to the inactive monomeric form of ribonuclease L (RNASEL) leading to its dimerization and subsequent activation (PubMed:10464285, PubMed:9880569, PubMed:11682059) . Activation of RNASEL leads to degradation of cellular as well as viral RNA, resulting in the inhibition of protein synthesis, thus terminating viral replication (PubMed:10464285, PubMed:9880569) . Can mediate the antiviral effect via the classical RNASEL-dependent pathway or an alternative antiviral pathway independent of RNASEL (PubMed:21142819) . In addition, it may also play a role in other cellular processes such as apoptosis, cell growth, differentiation and gene regulation (PubMed:21142819) . May act as a negative regulator of lactation, stopping lactation in virally infected mammary gland lobules, thereby preventing transmission of viruses to neonates (By similarity) . Non-infected lobules would not be affected, allowing efficient pup feeding during infection (By similarity) .

The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to 2',5'-Oligoadenylate Synthetase 2 (OAS2) . Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to 2',5'-Oligoadenylate Synthetase 2 (OAS2) . 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 2',5'-Oligoadenylate Synthetase 2 (OAS2), 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 2',5'-Oligoadenylate Synthetase 2 (OAS2) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Reconstitution & Storage Instructions Western Blotting/Immunoblotting (WB/IB) Protocol Immunohistochemistry (IHC) Protocol Immunocytochemistry (ICC) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Blocking Peptide Competition Protocol (BPCP) Immunoprecipitation (IP) Protocol Antibody Array (AA) Protocol Reconstitution & Storage Instructions Reconstitution & Storage Instructions Western Blotting/Immunoblotting (WB/IB) Protocol Western Blotting/Immunoblotting (WB/IB) Protocol Immunohistochemistry (IHC) Protocol Immunohistochemistry (IHC) Protocol Immunocytochemistry (ICC) Protocol Immunocytochemistry (ICC) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Blocking Peptide Competition Protocol (BPCP) Blocking Peptide Competition Protocol (BPCP) Immunoprecipitation (IP) Protocol Immunoprecipitation (IP) Protocol Antibody Array (AA) Protocol Antibody Array (AA) Protocol

Component Amount OAS2 Microplate 96 Wells (12 x 8 Well strips) OAS2 Lyophilized Standard 2 100X OAS2 HRP-Detector Anitbody 1 x 120 uL 100X Avidin-HRP Conjugate 1 x 120 uL Standard Diluent 1 x 20 mL Detector Antibody Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL 30X Wash Buffer 1 x 20 mL TMB Substrate 1 x 9 mL Stop Solution 1 x 6 mL Component Amount Component Amount OAS2 Microplate 96 Wells (12 x 8 Well strips) OAS2 Microplate 96 Wells (12 x 8 Well strips) OAS2 Lyophilized Standard 2 OAS2 Lyophilized Standard 2 100X OAS2 HRP-Detector Anitbody 1 x 120 uL 100X OAS2 HRP-Detector Anitbody 1 x 120 uL 100X Avidin-HRP Conjugate 1 x 120 uL 100X Avidin-HRP Conjugate 1 x 120 uL Standard Diluent 1 x 20 mL Standard Diluent 1 x 20 mL Detector Antibody Diluent 1 x 12 mL Detector Antibody Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL 30X Wash Buffer 1 x 20 mL 30X Wash Buffer 1 x 20 mL TMB Substrate 1 x 9 mL TMB Substrate 1 x 9 mL Stop Solution 1 x 6 mL Stop Solution 1 x 6 mL