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2019-nCoV S1 Human IgA ELISA Kit

Catalog No. C19S1-A877

96 Reactions Per Kit

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The anti-nCoV S1 Human IgA ELISA Kit is an enzyme-linked immunosorbent assay for the detection of Human anti-nCoV Spike protein S1 IgA in serum or other biological samples. Based on indirect ELISA principles, the anti-nCoV S1 Human IgA ELISA employs recombinant nCoV Spike protein RBD coated on a 96-well plate. Controls and samples (with necessary dilution) are pipetted into the wells; the target IgA in the controls and samples binds to the immobilized Spike protein. The intensity of color development in the wells is proportional to the amount of target IgA bound.


SignalChem Cat# Component Name Size Storage
WB20-09Wash Buffer, 20X15 ml x 2 vialsStore kit and contents at 4oC for up to 6 months. Store unused multi well strips in the provided resealable bag and use within one month after opening.
SS01-09Stop Solution 6 ml x 1 vial
E02-09nCoV Ig Sample Dilution Buffer 10 ml x 2 vials
CS02-506One-Step TMB Substrate 10 ml x 1 vial
C19S1A-POSIgA Positive Control 1 ml x 1 vial
C19S1A-NEGIgA Negative Control 1 ml x 1 vial
CP03-C19SD2019-nCoV Spike Protein RBD Coated Plate 1 plate
H38A-63DGAnti-Human IgA Fc Detection Antibody, 1X 10 ml x 1 vial


1. Zhou P, et al: A pneumonia outbreak associated with a new coronavirus of probable bat origin. Nature. 2020, 579:270-89.

2. Xiao X, et al: The SARS-CoV S glycoprotein. Cell Mol Life Sci. 2004, 61 (19-20): 2428-30.

3. Long Q, et al: Antibody responses to SARS-CoV-2 in patients with COVID-19 Quan-Xin Long. Nature

Representative Data:

Calculation and interpretation of assay results.

Related Products:

Name Catalog Number Species Tag Expression System Sequence Genbank Number
2019-nCoV Spike protein RBD, HIS TagC19SD-G241HSARS-CoV-2HISCHO cells319-541MN908947
2019-nCoV Spike protein RBD, Fc TagC19SD-G241FSARS-CoV-2FcCHO cells319-541MN908947
2019-nCoV Spike protein S1, HIS TagC19S1-G241HSARS-CoV-2HISCHO cells16-685MN908947
2019-nCoV Spike protein S1, Fc TagC19S1-G241FSARS-CoV-2FcCHO cells16-685MN908947
Anti 2019-nCoV Spike Protein hIgG Antibody, HRP conjugated C19S1-60DHHuman, IgG1CHO cells
Anti 2019-nCoV Spike Protein mIgG AntibodyC19S1-61MHHuman Fab – Mouse IgG FcCHO cells
Anti 2019-nCoV Spike Protein hIgA AntibodyC19S1-A60HHuman, IgACHO cells
Anti 2019-nCoV N-Protein hIgG Antibody, HRP conjugatedC19NP-60DHHuman, IgG1CHO cells
2019-nCoV S1 Protein ELISA KitC19SD-876
2019-nCoV S1 Human IgG ELISA KitC19S1-877
2019-nCoV S1 Human IgG-IgA-IgM ELISA KitC19S1-P877
2019-nCoV N-S1 Human IgA ELISA KitC19NS1-A877

Assay Workflow:

Technical Manual:

CoA Sheet:


There are no related publications available for this product.


  2019-nCoV Spike protein RBD, HIS Tag, C19SD-G241H

  Anti 2019-nCoV Spike Protein hIgG Antibody, HRP conjugated , C19S1-60DH

  Anti 2019-nCoV Spike Protein hIgA Antibody, C19S1-A60H

  2019-nCoV S1 Human IgG ELISA Kit, C19S1-877



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