TABLE 1.
Spatial distribution of chemoreceptorsa
| Strain | Total no. of particles | % of total particles in:
|
Polar membrane particles
|
Lateral membrane particles
|
|||
|---|---|---|---|---|---|---|---|
| Cyto-plasm | Mem-brane | % | % in clusters | % | % in clusters | ||
| RP437 (wild type) | 634 | 2 | 98 | 87 | 92 | 13 | 52 |
| RP4792 (ΔcheB) | 1,658 | 3 | 97 | 87 | 87 | 13 | 57 |
| RP1254 (ΔcheR) | 1,275 | 3 | 97 | 88 | 88 | 12 | 61 |
a
Cells were prepared for immunoelectron microscopy as described in the text. Eighty longitudinal sections of RP437 and 160 longitudinal sections each of RP4792 and RP1254 were examined.