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Table 5 Variation of the correlation in the measurements performed with 1 µg and 10 µg RNA

From: Extracting biological information from DNA arrays: an unexpected link between arginine and methionine metabolism in Bacillus subtilis

Centile

Met A 1 × Met A 10

Met B 1 × Met B 10

MTR A 1 × MTR A 10

MTR B 1 × MTR B 10

0-20

0.589

0.589

0.563

0.668

20-40

0.132

0.248

0.103

0.422

40-60

0.018

0.087

-0.022

0.332

60-80

0.191

0.179

0.120

0.350

80-100

0.698

0.763

0.706

0.807

  1. The results for experiments with 1 or 10 µg RNA were compared after ordering the genes with the corresponding hybridization values in increasing order. A high correlation indicates that the results are very similar for both conditions. The correlation is very good for highly expressed or poorly expressed genes whereas it is low for those with medium expression. Met, methionine; MTR, methylthioribose; A and B refer to different days, and 1 and 10 refer to the amount of RNA (see text).