Growth characteristics of the deletion mutants. Cells were grown in LB medium at 32°C (A and B), 37°C (C and D), or 45°C (E and F), and the optical density at 600 nm (OD600) was measured. Symbols in panels A, C, and E: ○, wild type; △, ΔrplA (L1) mutant; □, ΔrplV (L22) mutant; ●, ΔrplW (L23) mutant; ▲, ΔrpmH (L34) mutant. Symbols in panels B, D, and F: ○, wild type; △, ΔrpmJ (L36) mutant; □, ΔrpsF (S6) mutant; ●, ΔrpsU (S21) mutant. Results that are representative of three independent experiments are shown.