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Amino acids 15–28 in the ectodomain of SARS coronavirus 3a protein induces neutralizing antibodies
Author(s) -
Åkerström Sara,
Tan Yee-Joo,
Mirazimi Ali
Publication year - 2006
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2006.06.002
Subject(s) - ectodomain , virology , antibody , coronavirus , severe acute respiratory syndrome coronavirus , covid-19 , amino acid , neutralizing antibody , chemistry , biology , virus , biochemistry , immunology , medicine , receptor , disease , pathology , infectious disease (medical specialty) , outbreak
A synthetic peptide corresponding to amino acids (aa) 15–28 of the severe acute respiratory syndrome coronavirus (SARS‐CoV) 3a protein was used to raise polyclonal antibodies in rabbits. This anti‐3a N‐terminal antibody could detect 3a protein in infected cells, as did an anti‐3a C‐terminal antibody previously described. The latter targeted the C‐terminal cytoplasmic domain of 3a (aa 134–274). The anti‐3a N‐terminal antibody could detect intracellular 3a as well as 3a expressed on the cell surface. Interestingly, only the anti‐3a N‐terminal antibody can inhibit SARS‐CoV propagation in Vero E6 culture although the binding affinity of the anti‐3a N‐terminal antibody was lower than the anti‐3a C‐terminal antibody.