Table 3. Summary of ribosomal protein alterations in the S. aureus cytoplasmic extracts following growth under the various sets of environmental conditions in comparison with the reference control samples.

Growth conditions	Ribosomal proteins identified which did not alter in cytoplasmic concentrations whilst the majority of the ribosomal proteins were either up-regulated or down-regulated in cytoplasmic composition relative to the control	Ribosomal proteins that had significant increases or decreases relative to the control in contrast to the responses for the majority of ribosomal proteins
(B) Centroid: pH7; 37°C; 2.5% NaCl; n = 4	S18: S19; L3; L7/L12; L10; L22; L23; L32
	Majority of ribosomal proteins increased
(C) pH6; 35°C; 0%NaC; n = 4		Up-regulated: L10
	No majority ribosomal protein response	Down-regulated: L9; L15; S6
(D) pH8; 35°C; 0%NaCl; n = 4		Up-regulated:
	No majority ribosomal protein response	Down-regulated: L9; L33
(E) pH6; 35°C; 5%NaCl; n = 4	S6; S17; S19; S20; L5; L28; L30; L31 Type B; L32; L33	Up-regulated: L7/L12; L10; L29
	Majority of ribosomal proteins decreased	Down-regulated:
(F) pH8; 35°C; 5%NaCl; n = 4	S18; S19; L10; L23; L28 L32
	Majority of ribosomal proteins increased

Control cultures were grown under ideal conditions at pH7 and 37°C with no added NaCl; (B) centroid cultures grown at pH 7 and 37°C with 2.5% NaCl; (C) 35°C and pH6 with no added NaCl; (D) 35°C and pH8 with no added NaCl; (E) 35°C and pH6 with 5% NaCl added; (F) 35°C and pH8 with 5% NaCl