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Table 2 COG functional categories with altered expression (z score > 2.0) in biofilm cells compared to reactor, planktonic cells (exponential-phase)

From: Transcriptomic and proteomic analyses of Desulfovibrio vulgaris biofilms: Carbon and energy flow contribute to the distinct biofilm growth state

COG Function Categories Up Down
Amino acid transport and metabolism 6 28
Carbohydrate transport and metabolism 4 1
Cell cycle control, cell division, chromosome partitioning - 2
Cell motility 5 1
Cell wall/membrane/envelope biogenesis 5 5
Chromatin structure and dynamics - -
Coenzyme transport and metabolism 4 11
Defense mechanisms - 2
Energy production and conversion 22 24
Function unknown 7 5
General function prediction only 10 15
Inorganic ion transport and metabolism 4 5
Intracellular trafficking, secretion, and vesicular transport 2 4
Lipid transport and metabolism 1 5
Nucleotide transport and metabolism - 1
Posttranslational modification, protein turnover, chaperones 8 4
Replication, recombination and repair 1 9
Secondary metabolites biosynthesis, transport and catabolism 1 3
Signal transduction mechanisms 22 3
Transcription 3 6
Translation, ribosomal structure and biogenesis 1 21