Table 2.
Effect of Lat-A treatment on the spatial organization of Kcc4 and Bni4
DMSO
|
Lat-A
|
|||
---|---|---|---|---|
3.5 h (n = 648) | 3.5 h (n = 1779) | 4.25 h (n = 948) | 8 h (n = 875) | |
% Unbudded cells | 54 | 96 | 97 | 95 |
No. of unbudded cells with a ring | 16 | 6 | 1 | 0 |
Diameter of Kcc4-YFP ring (μm) | 0.92 ± 0.09 | 1.02 ± 0.21 | 1.08 | |
Diameter of Bni4-CFP ring (μm) | 1.15 ± 0.09 | 1.46 ± 0.19 | 1.20 | |
Kcc4-YFP/Bni4-CFP ring ratio | 0.80 ± 0.09 | 0.70 ± 0.07 | 0.90 | |
No. of unbudded cells with a cap | 3 | 39 | 25 | 54 |
Diameter of Kcc4-YFP cap (μm) | 0.75 ± 0.07 | 1.06 ± 0.25 | 1.22 ± 0.25 | 1.15 ± 0.28 |
Diameter of Bni4-CFP cap (μm) | 0.99 ± 0.17 | 1.14 ± 0.22 | 1.20 ± 0.21 | 1.18 ± 0.28 |
Kcc4-YFP/Bni4-CFP cap ratio | 0.77 ± 0.06 | 0.93 ± 0.14 | 1.02 ± 0.60 | 0.99 ± 0.15 |
No. of unbudded cells with an indeterminate signala | 0 | 6 | 4 | 4 |
Diameter of Kcc4 indeterminate signal (μm) | 1.11 ± 0.17 | 1.26 ± 0.25 | 1.28 ± 0.09 | |
Diameter of Bni4 indeterminate signal (μm) | 1.28 ± 0.17 | 1.28 ± 0.05 | 1.29 ± 0.17 | |
Kcc4/Bni4 diameter ratio for indeterminate signal | 0.87 ± 0.13 | 0.99 ± 0.21 | 1.00 ± 0.07 | |
% of Unbudded cells with lost asymmetryb | 5 | 49 | 77 | 74 |
Unbudded cells of strain YLK189 were isolated and treated with 150 μM Lat-A as described in Materials and Methods. Only cells with both proteins visible were scored.
The Kcc4 and Bni4 signals were intermediate between rings and caps.
Lost asymmetry is defined as a ratio of Kcc4 to Bni4 signal diameter of ≥0.9.