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Table 3 Pairwise Pearson's correlation coefficients.

From: Differential gene expression in recombinant Pichia pastoris analysed by heterologous DNA microarray hybridisation

Sample 1

Sample 2

microarray

correlation coefficient

P. p. shake flask pH 5.0

P. p. shake flask pH 5.0

same

0.98

S. c. shake flask pH 5.0

S. c. shake flask pH 5.0

same

0.97

P. p. shake flask pH 5.0

P. p. shake flask pH 5.0

different

0.90

S. c. shake flask pH 5.0

S. c. shake flask pH 5.0

different

0.92

P. p. shake flask pH 5.0

S. c. shake flask pH 5.0

different

0.72

P. p. fed batch, glycerol pH 5.0

P. p. fed batch, glycerol pH 5.0

different

0.86

P. p. fed batch, methanol pH 5.0

P. p. fed batch, methanol pH 5.0

different

0.92

P. p. fed batch, glycerol pH 3.0

P. p. fed batch, glycerol pH 3.0

different

0.90

P. p. fed batch, methanol pH 3.0

P. p. fed batch, methanol pH 3.0

different

0.83

  1. Normalised significant signal intensities derived both from the same and from different microarrays were correlated. P. p = P. pastoris, S. c. = S. cerevisiae.