Fig. 3From: Quantitative proteomic analysis to reveal expression differences for butanol production from glycerol and glucose by Clostridium sp. strain CT7 The comparison of proteins changes through the proteomics experiment at different carbon sources in Clostridium sp. strain CT7 using GO enrichment classification method. a, b The early and late fermentation stages, respectively. (1) and (2) represent the up-regulation and down-regulation in the different stages, respectivelyBack to article page