Numbers of Long ORFs in the Clusters of Type A, B, and C Obtained byk-Means Clustering Procedure (k = 2, 3)
| Species name | Total no. of long ORFs | Cluster types | Number of ORFs in clusters | ||||
| 2-means | 3-means | ||||||
| (AT) | (T) | (AT) | (HT) | (T) | |||
| A. fulgidus | 1222 | A,B,C | 148 | 1071 | 137 | 263 | 819 |
| B. subtilis | 2234 | A | 687 | 1547 | 600 | 392 | 1242 |
| B,C | 335 | 1899 | 335 | 392 | 1507 | ||
| E. coli | 2553 | A | 691 | 1844 | 628 | 534 | 1373 |
| B,C | 380 | 2155 | 380 | 534 | 1621 | ||
| H. influenzae | 987 | A | 203 | 782 | 172 | 240 | 573 |
| B,C | 147 | 838 | 147 | 240 | 598 | ||
| H. pylori | 907 | A | 194 | 706 | 166 | 264 | 470 |
| B,C | 134 | 766 | 134 | 264 | 502 | ||
| M. genitalium | 309 | A | 88 | 221 | 76 | 54 | 179 |
| B,C | 46 | 263 | 46 | 54 | 209 | ||
| M. jannaschii | 887 | A | 151 | 736 | 136 | 273 | 478 |
| B,C | 133 | 754 | 133 | 273 | 481 | ||
| M. pneumoniae | 416 | A | 188 | 228 | 178 | 82 | 156 |
| B,C | 62 | 354 | 62 | 82 | 272 | ||
| M. thermoautotrophicum | 957 | A,B,C | 99 | 858 | 95 | 194 | 668 |
| Synechocystis | 1837 | A | 352 | 1479 | 337 | 438 | 1056 |
| B,C | 274 | 1557 | 274 | 438 | 1119 | ||