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Table 3 Selected proteins with altered abundance under phosphate limitation.

From: Quantitative proteomics of nutrient limitation in the hydrogenotrophic methanogen Methanococcus maripaludis

ORF # Function Average log2 ratioa
  Phosphate transport  
MMP1095 Phosphate binding protein 2.15 ± 0.30
MMP1096 Phosphate transporter subunit 2.12 ± 0.47
MMP1098 ATP binding protein 2.16 ± 0.18
MMP1099 PhoU, regulator 1.16 ± 0.29
MMP1199 PhoU homolog 1.26 ± 0.16
MMP0666 Na+/Pi cotransporter 1.16 ± 0.32
  1. aAverage of four log2 ratios: 14N-labeled phosphate-limited compared with 15N-labeled H2-limited, 15N-labeled phosphate-limited compared with 14N-labeled H2-limited, 14N-labeled phosphate-limited compared with 15N-labeled nitrogen-limited, and 15N-labeled phosphate-limited compared with 14N-labeled nitrogen limited. Standard deviations are given.