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Table 3 The 10, most highly and differentially expressed, secreted-carbohydrase genes on xylose or maltose.

From: Transcriptomic comparison of Aspergillus niger growing on two different sugars reveals coordinated regulation of the secretory pathway

ORF gene name encoded enzyme (homolog) fold difference signal xylose SD signal maltose SD p FDR
High expression on maltose (maltose/xylose):
An03g06550 glaA glucoamylase 3.5 4,175 574 *12,892 805 1.8·10-8 4.5·10-5
An04g06920 agdA extracellular alpha-glucosidase 25.0 468 54 10,460 1,117 6.8·10-12 8.5·10-8
An11g03340 aamA acid alpha-amylase 100.5 37 11 3,202 356 3.6·10-10 1.1·10-6
An09g00260 aglC alpha-galactosidase 4.9 450 61 1,973 310 1.8·10-8 1.4·10-5
An12g08280 inu1 extracellular exo-inulinase 25.2 57 9 1,279 44 9.9·10-10 2.4·10-6
High expression on xylose (xylose/maltose):
An01g00780 xynB endo-1,4-xylanase 22.3 7,846 1,169 422 346 1.5·10-4 4.6·10-3
An01g09960 xlnD xylosidase 43.3 5,260 205 182 185 1.7·10-4 5.1·10-3
An14g02760 eglA endo-glucanase 81.3 4,079 476 56 47 4.0·10-7 1.1·10-4
An14g05800 aguA alpha-glucuronidase 45.0 3,619 433 81 45 1.4·10-6 2.2·10-4
An09g03300 axlA alpha-xylosidase 10.3 3,365 529 438 398 2.5·10-3 3.2·10-2
  1. ORF = identifier for open reading frame in A. niger CBS513.88 genome sequence [3]; gene name in A. niger; enzyme encoded by ORF (gene product and species name in parenthesis indicate closest ORF-homolog with characterized function); fold difference reflects ratio of normalized transcript levels (maltose/xylose or xylose/maltose); mean signal values of six experiments on each carbon source and standard deviations (SD) is given in Affymetix units; significance of each observation is given by p-value (p) and the Benjamini-Hochberg false discovery rate (FDR).
  2. *signal of An03g06550-probeset appears saturated, leading to underestimation of glaA-transcription in maltose-limited chemostat cultures.