Table 3.
Functional categories of the assigned genes
| Category* | Number of genes |
|---|---|
|
Cellular processes |
234 |
| Translation |
90 |
| Transcription |
22 |
| DNA replication, recombination, and repair |
39 |
| Cell killing |
5 |
| Cell envelope |
44 |
| Others |
34 |
|
Metabolism |
151 |
| Purines, pyrimidines, nucleosides, and nucleotides |
25 |
| Fatty acid, phospholipid and sterol metabolism |
16 |
| Central metabolism |
55 |
| Biosynthesis of cofactors, prosthetic groups, and carriers |
55 |
|
Nitrogen metabolism and nitrogen fixation-related |
121 |
| Amino acid biosynthesis |
44 |
| Nitrogen metabolism |
33 |
| Heterocyst differentiation and function |
44 |
|
Regulatory functions |
179 |
| Transcriptional regulators |
28 |
| Serine/threonine kinases |
18 |
| Two-component hybrid sensor and regulators |
29 |
| Two-component response regulators |
22 |
| WD-proteins |
15 |
| Two-component sensor histidine kinases |
32 |
| Serine/threonine kinases with two-component sensor domains |
11 |
| Phosphatases |
3 |
| Others |
21 |
|
Photosynthesis and respiration |
57 |
|
Transport and binding proteins |
124 |
| Iron-related genes |
30 |
|
Other categories |
213 |
| Hydrogenases |
7 |
| Hypothetical proteins | 1074 |
*The eight main categories in which the assigned genes have been classified are indicated in bold.