Table 3.
Synthetic peptides (spots) of structural N protein of SARS-CoV-2 and their antibody recognition by the pools of COVID-19 patients' sera.
| Spot (peptide) |
Region | IgG | IgM | IgA |
|---|---|---|---|---|
| 1 | N-terminal | −/+++ | ++/++ | +/+ |
| 2 | N-terminal | +/f+ | +/++ | ++/f+ |
| 16 | NTD | +++/− | f+/− | ++/+ |
| 26 | SR-rich linker | −/− | +/+++ | ++/f+ |
| 30 | CTD | −/− | ++/f + | +++/− |
| 31 | CDT | ++/− | +/+ | +++/f+ |
| 32 | CDT | −/− | +/f+ | +++/+ |
| 38 | CDT | −/− | +/+++ | −/++ |
| 39 | CDT | −/− | −/+++ | −/f+ |
| 48 | C-terminal | +/+ | +++/+++ | f+/+++ |
| 49 | C-terminal | ++/− | +++/+++ | +++/++ |
| 50 | C-terminal | +/− | +/+++ | +++/f + |
| 51 | C-terminal | ++/− | ++/+ | +++/− |
| 52 | C-terminal | +/++ | −/− | f+/+++ |
Results Pool 1/Pool 2. “+” denotes positive result; number of “+” signifies relative increase in positive spot intensity in the membrane; “f+” stands for faint-positive. “−” denote negative result.