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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.