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Table 6 Mass-shift–amino-acid pairs with elevated frequency in exponential phase

From: Large-scale analysis of post-translational modifications in E. coli under glucose-limiting conditions

Mass

Amino

Biol.

Exponential

Stationary

p-value

Shift

Acid

Replicate

   

+16 Da

W

1

285/6836 (4.17%)

248/8775 (2.83%)

5.55×10−06

  

2

238/6182 (3.85%)

141/7242 (1.95%)

4.31×10−11

  

3

282/6182 (4.56%)

113/6414 (1.76%)

9.13×10−20