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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

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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