Table 1.
Comparison of the extracellular proteins of R. etli; identified in the exponential growth phase (6 h) and the stationary growth phase (24 h)
| COGs | prot 6 h (%) |
prot 6 h (SP) (%) |
prot 24 h (%) |
prot 24 h (SP) (%) |
|---|---|---|---|---|
| Energy production and conversion (C) | 9.8 | 1.0 | 3.1 | - |
| Cell cycle control, cell division, chromosome partitioning (D) | 0.5 | - | 0.5 | - |
| Amino acid transport and metabolism (E) | 6.7 | 1.0 | 7.3 | 4.7 |
| Nucleotide transport and metabolism (F) | 1.0 | - | - | - |
| Carbohydrate transport and metabolism (G) | 7.7 | 1.0 | 7.9 | 4.1 |
| Coenzyme transport and metabolism (H) | 1.5 | - | 0.5 | - |
| Lipid transport and metabolism (I) | 1.0 | - | 0.5 | - |
| Translation, ribosomal structure and biogenesis (J) | 22.3 | - | 6.3 | - |
| Transcription (K) | 3.1 | - | 3.1 | - |
| Replication, recombination and repair (L) | 3.6 | - | 5.2 | 0.5 |
| Cell wall, membrane, envelope biogenesis (M) | 5.1 | 1.5 | 7.3 | 3.7 |
| Cell motility (N) | 3.6 | 1.5 | 2.0 | 0.5 |
| Posttranslational modification, protein turnover, chaperones (O) | 8.8 | 1.0 | 6.8 | 1.0 |
| Inorganic ion transport and metabolism (P) | 3.1 | 0.5 | 5.7 | 3.7 |
| Secondary metabolites biosynthesis, transport and catabolism (Q) | 2.6 | 0.5 | 0.5 | - |
| General function prediction only (R) | 2.0 | - | 3.6 | 1.6 |
| Function unknown (S) | 3.6 | 1.5 | 28.8 | 11.0 |
| Signal transduction mechanisms (T) | 3.1 | 1.0 | 1.0 | - |
| Intracellular trafficking, secretion, and vesicular transport (U) | 4.1 | 0.5 | 1.5 | 1.6 |
| Defense mechanisms (V) | 1.5 | - | 1.0 | - |
| Without COG (WC) | 4.1 | 1.5 | 6.2 | 3.1 |
| Total protein | 192 | 25 | 191 | 68 |
The proteins were grouped in functional groups (COGs). The relative contribution to each COG of proteins with a potential signal peptide (SP) is indicated. Functional groups with a major abundance in proteins are shown in bold letters and numbers.