TABLE 3.
E. coli data setsa
| Data set | Type | PHX
|
PHX(RP−)
|
PMX
|
PA
|
||||
|---|---|---|---|---|---|---|---|---|---|
| No. of genesb | SD% | No. of genes | SD% | No. of genes | SD% | No. of genes | SD% | ||
| EcoMap12 | Verified | 178 | 81.5 | 157 | 81.5 | 468 | 73.3 | 10 | 70.0 |
| PEC database | Essential | 86 | 69.8 | 51 | 62.7 | 105 | 49.5 | 0 | |
| Nonessential | 183 | 73.8 | 183 | 73.8 | 1,798 | 62.6 | 117 | 38.5 | |
| Unknown | 37 | 64.9 | 37 | 64.9 | 1,408 | 50.6 | 151 | 43.0 | |
| NCBI genome | Annotations | 306 | 71.6 | 271 | 70.5 | 3,320 | 57.1 | 269 | 40.9 |
a
See text for definitions of PHX, PMX, and PA gene classes. For the gene classes PHX, PHX(RP−), and PA, SD% in bold indicates a significant increase over the group PMX, while underlining signifies a significant decrease (P < 0.05 for a χ2 test using the Yates correction). PHX(RP−), PHX excluding RP genes.
b
Number of genes comprising at least 100 codons.