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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nat+Commun 2021 ; 12 (1): 1806 Nephropedia Template TP
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A homogeneous split-luciferase assay for rapid and sensitive detection of anti-SARS CoV-2 antibodies #MMPMID33753733
Yao Z; Drecun L; Aboualizadeh F; Kim SJ; Li Z; Wood H; Valcourt EJ; Manguiat K; Plenderleith S; Yip L; Li X; Zhong Z; Yue FY; Closas T; Snider J; Tomic J; Drews SJ; Drebot MA; McGeer A; Ostrowski M; Mubareka S; Rini JM; Owen S; Stagljar I
Nat Commun 2021[Mar]; 12 (1): 1806 PMID33753733show ga
Better diagnostic tools are needed to combat the ongoing COVID-19 pandemic. Here, to meet this urgent demand, we report a homogeneous immunoassay to detect IgG antibodies against SARS-CoV-2. This serological assay, called SATiN, is based on a tri-part Nanoluciferase (tNLuc) approach, in which the spike protein of SARS-CoV-2 and protein G, fused respectively to two different tNLuc tags, are used as antibody probes. Target engagement of the probes allows reconstitution of a functional luciferase in the presence of the third tNLuc component. The assay is performed directly in the liquid phase of patient sera and enables rapid, quantitative and low-cost detection. We show that SATiN has a similar sensitivity to ELISA, and its readouts are consistent with various neutralizing antibody assays. This proof-of-principle study suggests potential applications in diagnostics, as well as disease and vaccination management.