Table 1.
Proportions of cA genes in the 67 large DNA viruses.
| Classification | Virus | Genome size (bp) | Genomic G+C (%) | Number of analyzed CDS | Number of cA genes | Proportions of cA genes (%) | Co-localizationa |
| Caudovirales | Enterobacteria phage RB43 | 180500 | 43.2 | 177 | 15 | 8.47 | - |
| Enterobacteria phage T4 | 168903 | 35.3 | 175 | 8 | 4.57 | - | |
| Pseudomonas phage phiEL | 211215 | 49.33 | 178 | 18 | 10.11 | - | |
| Pseudomonas phage phiKZ | 280334 | 36.83 | 278 | 27 | 9.71 | - | |
| Mycobacterium phage Bxz1 | 156102 | 64.77 | 147 | 27 | 18.37 | - | |
| Enterobacteria phage RB69 | 167560 | 37.66 | 160 | 11 | 6.88 | * | |
| Enterobacteria phage RB49 | 164018 | 40.44 | 160 | 12 | 7.5 | - | |
| Vibrio phage KVP40 | 244835 | 42.6 | 256 | 18 | 7.03 | - | |
| Aeromonas phage 44RR2.8t | 173591 | 43.88 | 173 | 7 | 4.05 | - | |
| Aeromonas phage Aeh1 | 233234 | 42.78 | 228 | 13 | 5.7 | - | |
| Bacteriophage S-PM2 | 196280 | 37.82 | 135 | 28 | 20.74 | * | |
| Cyanophage P-SSM2 | 252401 | 35.51 | 212 | 33 | 15.57 | * | |
| Cyanophage P-SSM4 | 178249 | 36.74 | 121 | 20 | 16.53 | ** | |
| Aeromonas phage 31 | 172963 | 43.91 | 173 | 10 | 5.78 | - | |
| Bacteriophage c-st | 185683 | 26.28 | 151 | 8 | 5.3 | - | |
| Alphaherpesvirinae | Cercopithecine herpesvirus 16 | 156487 | 76.09 | 71 | 18 | 25.35 | - |
| Equid herpesvirus 1 | 150224 | 56.67 | 79 | 12 | 15.19 | - | |
| Cercopithecine herpesvirus 1 | 156789 | 74.46 | 71 | 23 | 32.39 | - | |
| Human herpesvirus 2 | 154746 | 70.39 | 72 | 21 | 29.17 | * | |
| Human herpesvirus 1 | 152261 | 68.28 | 72 | 24 | 33.33 | - | |
| Psittacid herpesvirus 1 | 163025 | 60.95 | 71 | 8 | 11.27 | - | |
| Gallid herpesvirus 2 | 174077 | 43.89 | 106 | 19 | 17.92 | * | |
| Gallid herpesvirus 3 | 164270 | 53.61 | 92 | 19 | 20.65 | *** | |
| Cercopithecine herpesvirus 2 | 150715 | 75.97 | 71 | 22 | 30.99 | * | |
| Meleagrid herpesvirus 1 | 159160 | 47.56 | 85 | 8 | 9.41 | *** | |
| Betaherpesvirinae | Pongine herpesvirus 4 | 241087 | 61.7 | 155 | 67 | 43.23 | *** |
| Human herpesvirus 6B | 162114 | 42.77 | 91 | 6 | 6.59 | - | |
| Murid herpesvirus 1 | 230278 | 58.73 | 156 | 52 | 33.33 | *** | |
| Human herpesvirus 5 strain AD169 | 230287 | 57.19 | 145 | 53 | 36.55 | *** | |
| Human herpesvirus 6 | 159321 | 42.44 | 107 | 11 | 10.28 | - | |
| Human herpesvirus 7 | 153080 | 36.22 | 78 | 8 | 10.26 | - | |
| Cercopithecine herpesvirus 8 | 221454 | 49.14 | 223 | 80 | 35.87 | - | |
| Murid herpesvirus 2 | 230138 | 61.01 | 165 | 87 | 52.73 | *** | |
| Human herpesvirus 5 strain Merlin | 235645 | 57.48 | 153 | 56 | 36.6 | *** | |
| Tupaiid herpesvirus 1 | 195859 | 66.61 | 144 | 59 | 40.97 | *** | |
| Gammaherpesvirinae | Human herpesvirus 4 | 171823 | 59.5 | 90 | 37 | 41.11 | * |
| Equid herpesvirus 2 | 184427 | 57.5 | 74 | 28 | 37.84 | - | |
| Cercopithecine herpesvirus 15 | 171096 | 61.94 | 77 | 22 | 28.57 | * | |
| Herpesvirinae Uncl. | Ostreid herpesvirus 1 | 207439 | 38.73 | 121 | 7 | 5.79 | - |
| Chordopoxvirinae | Monkeypox virus | 196858 | 33.09 | 162 | 3 | 1.85 | - |
| Camelpox virus | 205719 | 33.17 | 171 | 6 | 3.51 | ** | |
| Cowpox virus | 224499 | 33.4 | 189 | 2 | 1.06 | - | |
| Myxoma virus | 161773 | 43.56 | 147 | 5 | 3.4 | - | |
| Rabbit fibroma virus | 159857 | 39.53 | 138 | 4 | 2.9 | - | |
| Ectromelia virus | 209771 | 33.18 | 154 | 6 | 3.9 | - | |
| Variola virus | 185578 | 32.73 | 152 | 6 | 3.95 | - | |
| Molluscum contagiosum virus | 190289 | 63.36 | 139 | 43 | 30.94 | *** | |
| Canarypox virus | 359853 | 30.37 | 291 | 14 | 4.81 | - | |
| Fowlpox virus | 288539 | 30.89 | 230 | 12 | 5.22 | - | |
| Lumpy skin disease virus | 150773 | 25.91 | 136 | 4 | 2.94 | - | |
| Vaccinia virus | 194711 | 33.34 | 179 | 3 | 1.68 | - | |
| Entomopoxvirinae | M. sanguinipes entomopoxvirus | 236120 | 18.27 | 208 | 15 | 7.21 | - |
| A. moorei entomopoxvirus 'L' | 232392 | 17.78 | 218 | 16 | 7.34 | - | |
| Poxvirinae Uncl. | Mule deer poxvirus | 166259 | 26.16 | 148 | 2 | 1.35 | - |
| Asfarviridae | African swine fever virus | 170101 | 38.95 | 129 | 22 | 17.05 | ** |
| Baculovirviridae | M. configurata NPV-A | 155060 | 41.68 | 146 | 7 | 4.79 | - |
| M. configurata NPV-B | 158482 | 40.04 | 146 | 7 | 4.79 | - | |
| L. dispar MNPV | 161046 | 57.47 | 133 | 34 | 25.56 | - | |
| Xestia c-nigrum granulovirus | 178733 | 40.68 | 145 | 8 | 5.52 | - | |
| Iridoviridae | Lymphocystis disease virus | 186250 | 27.23 | 127 | 7 | 5.51 | - |
| Invertebrate iridescent virus 6 | 212482 | 28.63 | 178 | 15 | 8.43 | - | |
| Mimiviridae | A. polyphaga mimivirus | 1181404 | 27.96 | 910 | 83 | 9.12 | - |
| Phycodnaviridae | E. huxleyi virus 86 | 407339 | 40.18 | 416 | 44 | 10.58 | - |
| P. bursaria Chlorella virus 1 | 330743 | 39.97 | 426 | 117 | 27.46 | - | |
| E. siliculosus virus 1 | 335593 | 51.73 | 209 | 25 | 11.96 | - | |
| Nimaviridae | Shrimp white spot syndrome virus | 305107 | 41.01 | 245 | 96 | 39.18 | - |
| Unclassified Virus | H. zea virus 1 | 228089 | 41.86 | 104 | 25 | 24.04 | * |
a. '-' no significance; * p ≤ 0.05; ** p ≤ 0.01; *** p ≤ 0.001.