Proteome analysis of Aspergillus niger: Lactate added in starch-containing medium can increase production of the mycotoxin fumonisin B2by modifying acetyl-CoA metabolism

Table 2 Clusters and interpretation

Description of clusters	Cluster profiles¹	No. of spots
		Total	Identified
Higher levels on SL		26	11
Tendency for higher levels on SL		36	16
Lower levels on SL		42	4
Tendency for lower levels on SL		26	16
Higher levels if starch is present		45	3
Lower levels if starch is present		52	0
Higher levels if lactate is present		21	4
Lower levels if lactate is present		35	0
Possibly an effect, instability	Clusters 11, 16, 26, 30	58	3
No effect, instability and noise	Clusters 1, 5, 6, 9, 10, 12, 13, 14, 17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 29, 31, 34	308	1
Total		649	58²

1) The graphs show the protein level profiles for selected clusters shown as transformed values between -1 and 1, where 0 indicates the average protein level. The bars give the standard deviations within the clusters.
2) One spot, identified as glucoamylase [Swiss-Prot: P69328], was excluded from the data analysis (see text). Thus the total number of identified spots was 59.

ISSN: 1471-2180