Table 2.

Amino Acid Usage and Expression Level (SAGE), Multiple Regression Analysis


Amino acid

One letter code

Pearson correlation with expression (p < 0.0001)

Effect of expression when controlling for GC3 content and gene length (p < 0.0001)
Alanine A 0.100 β = 0.336
Arginine R NS
Aspargine N NS
Aspartic acid D 0.100 β = 0.562
Cysteine C −0.077 β = −0.458
Glutamine Q −0.071 β = −0.256
Glutamic acid E 0.055 β 0.561
Glycine G 0.084 β 0.418
Histidine H −0.118 β = −0.349
Isoleucine I NS
Leucine L −0.105 β = −0.888
Lysine K 0.126 β = 1.049
Methionine M 0.071 β = −0.142
Phenylalanine F −0.032 β = −0.155
Proline P −0.045 β = −0.401
Serine S −0.145 β = 0.785
Threonine T 0.045 β = −0.086
Tryptophan W −0.071 β = −0.211
Tyrosine Y NS
Valine
V
0.055
β = 0.227

[i] Threshold of significance is defined after Bonferroni correction.