Cell-cycle analysis. Flow cytograms showing cell-cycle parameters of
HMME7 (A and B), HMF3A (C
and D), and HMF3B (E and
F). Cells were grown at either 33.5°C
(A, C, and E) or 39.5°C
(B, D, and F) for 5 days
and pulse labeled with BrdUrd. Plots show PI fluorescence
(x axis) vs. FITC fluorescence from BrdUrd
(y axis). The proportion of cells in S phase is shown,
being reduced to nearly zero in HMME7 and HMF3A but not HMF3B cells, at
39.5°C.