TABLE 2.

Functional makeup of R. palustris essential genes

Functional group	No. of essential genes
Catabolite repression	1
Cell cycle, cell division, and cell envelope	30
Conserved domain proteins	9
DNA methylation	2
DNA replication, recombination, and repair	21
Hypothetical proteins	54
Lipoproteins	6
Metabolism	251
Outer membrane proteins	5
Proteases/peptidases	13
Protein folding/modification	4
Protein translocation	2
Secretion	13
Sensing and signaling	11
Sigma factors	3
Stress response	7
Transcription	12
Transcriptional regulators	7
Translation	88
Transport	13
Total	552