TABLE 2.
Comparison of 2-D total protein profiles of L. monocytogenes food isolates and L. monocytogenes EGDe: numbers of major and minor spots in the food isolates that were not matched in strain EGDe (serotype 1/2a)
| L. monocytogenes strain (serotype) | No. of unmatched major spots (%)a | No. of unmatched minor spots (%)b |
|---|---|---|
| B73 (1/2a) | 4 of 57 (7) | 43 of 143 (30) |
| 412 (1/2a) | 8 of 42 (19) | 40 of 158 (25) |
| O57 (1/2a) | 7 of 46 (15) | 52 of 154 (34) |
| 386 (1/2b) | 5 of 54 (9) | 32 of 146 (22) |
a
Only spots with a minimum spot area of 50 pixels and a minimum spot contrast of 25 were considered major spots.
b
The minor spots considered were the 200 most significant spots that did not fit the criteria for major spots.