Archaea   Paired Unpaired Ratio1 A2 G C U
C M C M C M PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM
Archaeoglobus fulgidus M64487 1684 1868 1248 1064 57%/43% 64%/36% 132 508 165 475 726 319 769 276 630 161 664 127 196 260 270 186
Desulfurococcus mobilis X05480 1806 2362 1893 1337 49%/51% 64%/36% 118 732 256 594 802 463 925 340 721 284 820 185 165 414 361 218
Haloarcula marismortui X13738 1704 1780 1221 1145 58%/42% 61%/39% 237 520 255 502 618 272 635 255 541 195 538 198 308 234 352 190
Haloarcula marismortui rrnA AF034619 1710 1774 1220 1156 58%/42% 61%/39% 241 518 261 498 620 273 626 267 542 195 541 196 307 234 346 195
Haloarcula marismortui rrnB AF034620 1710 1772 1220 1158 58%/42% 60%/40% 240 520 247 513 620 271 639 252 544 196 544 196 306 233 342 197
Halobacterium salinarum X03407 1642 1820 1263 1085 57%/43% 63%/37% 215 519 259 475 616 300 651 265 521 191 548 164 290 253 362 181
Halococcus morrhuae X05481 1676 1792 1251 1135 57%/43% 61%/39% 212 499 223 488 640 299 673 266 553 218 575 196 271 235 321 185
Haloferax volcanii Thesis, Achenbach-Richter L. 1627 1758 1278 1147 56%/44% 61%/39% 242 522 261 503 587 284 618 253 509 213 520 202 289 259 359 189
Methanococcus jannaschii U67517 L77117 1800 1932 1212 1080 60%/40% 64%/36% 132 518 168 482 780 300 798 282 686 144 696 134 202 250 270 182
Methanococcus vannielii X02729 1702 1854 1256 1104 58%/42% 63%/37% 229 515 274 470 628 282 653 257 509 173 540 142 336 286 387 235
Methanospirillum hungatei M81323 1655 1770 1254 1139 57%/43% 61%/39% 274 518 295 497 564 282 590 256 468 172 473 167 349 282 412 219
Methanothermobacter thermautotrophicus X05482 1744 1940 1275 1079 58%/42% 64%/36% 170 446 235 381 710 341 735 316 519 143 547 115 345 345 423 267
Sulfolobus acidocaldarius M67495 1778 2050 1266 994 58%/42% 67%/33% 179 522 242 459 723 309 783 249 626 179 660 145 250 256 365 141
Thermococcus celer M67497 1758 1980 1271 1049 58%/42% 65%/35% 124 507 167 464 765 331 823 273 671 176 711 136 198 257 279 176
Thermofilum pendens X14835 1804 1982 1265 1087 59%/41% 65%/35% 132 495 150 477 786 338 841 283 694 195 741 148 192 237 250 179
Thermoplasma acidophilum M32298 1682 1852 1226 1056 58%/42% 64%/36% 238 523 272 489 616 283 654 245 499 144 507 136 329 276 419 186
Thermoproteus tenax PUBMED 1778 1986 1253 1045 59%/41% 66%/34% 106 487 153 440 800 335 840 295 704 195 738 161 168 236 255 149
Bacteria   Paired Unpaired Ratio1 A2 G C U
C M C M C M PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM
Acinetobacter calcoaceticus X87280 1742 1784 1161 1119 60%/40% 61%/39% 270 520 287 503 613 254 605 262 480 125 471 134 379 262 421 220
Aeromonas hydrophila X87281 1736 1776 1158 1118 60%/40% 61%/39% 247 507 260 494 635 267 628 274 506 140 498 148 348 244 390 202
Aquifex aeolicus AE000709 AE000751 1752 1892 1204 1064 59%/41% 64%/36% 126 504 159 471 760 315 787 288 678 156 688 146 188 229 258 159
Bacillus anthracis X64645 1702 1762 1185 1125 59%/41% 61%/39% 264 523 291 496 603 279 590 292 499 119 480 138 336 264 401 199
Bacillus sp. X60981 1672 1824 1242 1090 57%/43% 63%/37% 208 525 238 495 647 338 674 311 531 162 562 131 286 217 350 153
Bacillus subtilis K00637 AF008220 Z99119 1742 1796 1185 1131 60%/40% 61%/39% 253 525 264 514 636 280 634 282 529 132 509 152 324 248 389 183
Bartonella bacilliformis L39095 1672 1778 1149 1043 59%/41% 63%/37% 262 505 297 470 580 249 592 237 467 134 460 141 363 261 429 195
Bordetella bronchiseptica X70371 1694 1750 1185 1129 59%/41% 61%/39% 238 523 262 499 622 278 613 287 486 142 477 151 348 242 398 192
Bordetella pertussis X68323 1685 1808 1322 1199 56%/44% 60%/40% 235 558 264 529 619 308 640 287 483 186 496 173 348 270 408 210
Borrelia burgdorferi M88330 1758 1848 1168 1078 60%/40% 63%/37% 353 557 368 542 542 262 556 248 404 88 401 91 459 261 523 197
Bradyrhizobium japonicum Z35330 1626 1774 1248 1100 57%/43% 62%/38% 235 517 259 493 593 290 628 255 473 181 494 160 325 260 393 192
Bradyrhizobium japonicum X71840 1652 1826 1230 1056 57%/43% 63%/37% 235 516 271 480 606 281 642 245 481 175 509 147 330 258 404 184
Burkholderia cepacia X16368 1716 1766 1162 1112 60%/40% 61%/39% 237 510 261 486 629 271 622 278 495 129 478 146 355 252 405 202
Burkholderia mallei Y17183 1726 1788 1156 1094 60%/40% 62%/38% 235 507 259 483 638 269 635 272 498 134 490 142 355 246 404 197
Burkholderia pseudomallei Y17184 1724 1790 1158 1092 60%/40% 62%/38% 232 510 260 482 639 269 635 273 499 134 489 144 354 245 406 193
Campylobacter coli U09611 1788 1856 1269 1201 58%/42% 61%/39% 345 568 361 552 563 269 567 265 438 141 438 141 442 291 490 243
Campylobacter jejuni Z29326 1744 1732 1163 1175 60%/40% 60%/40% 314 539 316 537 563 245 550 258 455 111 428 138 412 268 438 242
Chlamydia suis U68420 1662 1758 1278 1182 57%/43% 60%/40% 295 576 307 564 562 299 572 289 431 143 452 122 374 260 427 207
Chlamydia trachomatis U68443 1734 1736 1207 1205 59%/41% 59%/41% 307 571 300 578 586 270 568 288 459 116 450 125 382 250 418 214
Chlamydophila pneumoniae U76711 AE001668 1668 1786 1272 1154 57%/43% 61%/39% 321 547 340 528 529 283 553 259 412 146 424 134 406 296 469 233
Chlamydophila psittaci U68447 1770 1778 1172 1164 60%/40% 60%/40% 346 526 338 534 555 249 551 253 443 120 424 139 426 277 465 238
Chlorobium limicola M62805 1559 1670 1158 1047 57%/43% 61%/39% 239 505 261 483 559 259 574 244 442 141 457 126 319 253 378 194
Citrobacter freundii U77928 1729 1742 1167 1154 60%/40% 60%/40% 246 525 259 512 629 270 612 287 493 126 482 137 361 246 389 218
Clostridium botulinum A X65602 1706 1796 1190 1100 59%/41% 62%/38% 276 556 301 531 594 271 597 268 486 116 479 123 350 247 419 178
Clostridium botulinum B M94178 1725 1798 1183 1110 59%/41% 62%/38% 291 553 310 534 587 270 589 268 475 112 463 124 372 248 436 184
Clostridium botulinum B M94259 1725 1814 1182 1093 59%/41% 62%/38% 290 553 319 524 588 268 588 268 478 110 466 122 369 251 441 179
Clostridium botulinum E M94261 1722 1812 1187 1097 59%/41% 62%/38% 291 555 315 531 587 270 591 266 476 113 470 119 368 249 436 181
Coxiella burnetii X79704 1744 1998 1460 1206 54%/46% 62%/38% 305 591 364 532 585 338 635 288 462 183 491 154 392 348 508 232
Deinococcus radiodurans AE002087 1722 1778 1157 1101 60%/40% 62%/38% 244 493 257 480 622 284 632 274 539 149 518 170 317 231 371 177
Deinococcus radiodurans AE001886 1722 1784 1157 1095 60%/40% 62%/38% 244 493 248 489 622 284 644 262 539 149 528 160 317 231 364 184
Enterococcus faecalis X79341 1734 1810 1175 1099 60%/40% 62%/38% 285 533 301 517 601 279 604 276 485 113 475 123 363 250 430 183
Erysipelothrix rhusiopathiae AB019250 1716 1738 1185 1163 59%/41% 60%/40% 296 546 293 549 579 284 576 287 467 117 456 128 374 238 413 199
Escherichia coli J01695 1738 1766 1166 1138 60%/40% 61%/39% 241 521 257 505 639 273 626 286 507 132 501 138 351 240 382 209
Flexibacter flexilis M62806 1602 1666 1186 1122 57%/43% 60%/40% 264 531 270 525 561 277 563 275 430 133 440 123 347 245 393 199
Frankia sp. M55343 1832 1964 1267 1135 59%/41% 63%/37% 204 496 233 467 734 335 749 320 561 150 587 124 333 286 395 224
Geobacillus stearothermophilus K02663 1698 1816 1230 1112 58%/42% 62%/38% 210 527 226 511 661 326 682 305 540 160 567 133 287 217 341 163
Haemophilus influenzae (operons A-F) U32742 U32745 U32755 U32847 U32697 U32707 1732 1732 1165 1165 60%/40% 60%/40% 283 546 298 531 599 270 568 301 459 116 448 127 391 233 418 206
Helicobacter pylori U27270 1644 1782 1324 1186 55%/45% 60%/40% 287 568 320 535 547 298 571 274 432 159 446 145 378 299 445 232
Heliobacterium chlorum NPA3 1735 1792 1251 1194 58%/42% 60%/40% 241 549 246 544 653 317 649 321 527 166 533 160 314 219 364 169
Klebsiella pneumoniae X87284 1736 1766 1167 1137 60%/40% 61%/39% 244 518 252 510 634 274 631 277 500 137 496 141 358 238 387 209
Lactobacillus delbrueckii X68426 1708 1784 1201 1125 59%/41% 61%/39% 258 552 279 531 614 294 613 295 503 126 494 135 333 229 398 164
Lactococcus lactis X68434 1726 1778 1175 1123 59%/41% 61%/39% 293 532 311 514 587 268 578 277 463 124 448 139 383 251 441 193
Leptospira interrogans X14249 1766 1778 1192 1180 60%/40% 60%/40% 265 550 277 538 627 262 612 277 509 117 479 147 365 263 410 218
Listeria monocytogenes X64533 1736 1788 1192 1140 59%/41% 61%/39% 279 540 291 528 609 289 603 295 495 126 484 137 353 237 410 180
Listeria monocytogenes X68420 1744 1824 1188 1108 59%/41% 62%/38% 260 529 279 510 627 272 633 266 520 128 509 139 337 259 403 193
Micrococcus luteus X06484 1788 1936 1306 1158 58%/42% 63%/37% 216 520 264 472 696 333 704 325 548 156 575 129 328 297 393 232
Mycobacterium leprae X56657 1812 1916 1310 1206 58%/42% 61%/39% 232 538 255 515 688 317 703 302 550 166 561 155 342 289 397 234
Mycobacterium tuberculosis Z73902 1794 1992 1344 1146 57%/43% 63%/37% 213 546 263 496 698 335 733 300 573 188 605 156 310 275 391 194
Mycoplasma genitalium U39694 1734 1788 1183 1129 59%/41% 61%/39% 343 532 359 516 532 268 535 265 407 109 395 121 452 274 499 227
Mycoplasma pneumoniae X68422 U00089 1732 1780 1173 1125 60%/40% 61%/39% 333 532 360 505 540 266 530 276 411 105 394 122 448 270 496 222
Myroides odoratus M62807 1534 1574 1134 1094 57%/43% 59%/41% 264 502 275 491 510 253 512 251 401 133 390 144 359 246 397 208
Neisseria gonorrhoeae X67293 1730 1742 1160 1148 60%/40% 60%/40% 260 523 259 524 619 265 612 272 489 134 475 148 362 238 396 204
Neisseria meningitidis X67300 1730 1724 1160 1166 60%/40% 60%/40% 269 523 260 532 610 265 602 273 487 132 471 148 364 240 391 213
Parachlamydia acanthamoebae Y07555 1710 1790 1319 1239 56%/44% 59%/41% 304 590 311 583 570 273 584 259 465 156 462 159 371 300 433 238
Pirellula marina X07408 1690 1776 1195 1109 59%/41% 62%/38% 247 509 264 492 615 271 624 262 485 144 496 133 343 271 392 222
Plesiomonas shigelloides X65487 1629 1632 1132 1129 59%/41% 59%/41% 236 509 249 496 600 262 567 295 454 124 443 135 339 237 373 203
Pseudomonas aeruginosa Y00432 1734 1748 1159 1145 60%/40% 60%/40% 230 524 249 505 643 261 625 279 499 122 490 131 362 252 384 230
Rhodobacter capsulatus X06485 1654 1762 1230 1122 57%/43% 61%/39% 231 506 248 489 612 281 633 260 493 186 513 166 318 257 368 207
Rhodobacter sphaeroides X53853 1652 1796 1231 1087 57%/43% 62%/38% 219 520 254 485 618 291 644 265 510 189 535 164 305 231 363 173
Rhodococcus erythropolis AF001265 1812 1944 1313 1181 58%/42% 62%/38% 236 531 269 498 685 335 703 317 539 168 565 142 352 279 407 224
Rhodopseudomonas palustris X71839 1630 1722 1196 1104 58%/42% 61%/39% 233 500 238 495 596 266 623 239 474 177 495 156 327 253 366 214
Rickettsia prowazekii AJ235270 1638 1652 1125 1111 59%/41% 60%/40% 296 527 309 514 535 228 517 246 424 110 403 131 383 260 423 220
Rickettsia rickettsii U11022 1589 1586 1106 1109 59%/41% 59%/41% 272 517 280 509 529 223 513 239 424 115 402 137 364 251 391 224
Ruminobacter amylophilus X06765 1712 1712 1155 1155 60%/40% 60%/40% 303 536 302 537 582 296 554 324 435 111 433 113 392 212 423 181
Simkania negevensis U68460 1674 1798 1269 1145 57%/43% 61%/39% 291 543 321 513 563 284 578 269 454 145 452 147 366 297 447 216
Staphylococcus aureus X68425 1748 1794 1175 1129 60%/40% 61%/39% 289 519 310 498 601 264 587 278 483 114 468 129 375 278 429 224
Staphylococcus carnosus X68419 1752 1806 1172 1118 60%/40% 62%/38% 288 509 309 488 605 272 594 283 485 123 467 141 374 268 436 206
Streptomyces ambofaciens M27245 1810 1996 1310 1124 58%/42% 64%/36% 201 513 253 461 716 344 745 315 557 162 583 136 336 291 415 212
Streptomyces griseus X61478 1828 1958 1292 1162 59%/41% 63%/37% 223 504 260 467 707 342 719 330 548 162 570 140 350 284 409 225
Synechococcus sp. PCC 6301 X00512 1664 1774 1212 1102 58%/42% 62%/38% 238 535 244 529 621 292 643 270 494 153 516 131 311 232 371 172
Thermotoga maritima M67498 1802 1934 1221 1089 60%/40% 64%/36% 146 514 184 476 766 327 783 310 673 139 671 141 217 241 296 162
Thermus aquaticus NPA 1702 1830 1213 1085 58%/42% 63%/37% 138 499 167 470 729 332 748 313 615 159 639 135 220 223 276 167
Thermus thermophilus X12612 1664 1844 1251 1071 57%/43% 63%/37% 127 509 148 488 718 348 774 292 615 179 659 135 204 215 263 156
Treponema pallidum (rRNA A) AE001204 1768 1762 1185 1191 60%/40% 60%/40% 266 519 275 510 638 302 606 334 485 114 478 121 379 250 403 226
Tropheryma whipplei AF190687 1722 1938 1376 1160 56%/44% 63%/37% 226 553 278 501 653 318 691 280 514 190 568 136 329 315 401 243
Eukaryotic Chloroplast   Paired Unpaired Ratio1 A2 G C U
C M C M C M PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM
Alnus incana M75719 M75722 1650 1740 1264 1174 57%/43% 60%/40% 239 539 247 531 604 309 623 290 500 185 509 176 307 231 361 177
Astasia longa X14386 1734 1884 1371 1221 56%/44% 61%/39% 439 615 501 553 429 244 441 232 310 74 289 95 556 438 653 341
Chlamydomonas eugametos Z17234 1722 1932 1482 1272 54%/46% 60%/40% 319 638 362 595 554 323 604 273 439 206 484 161 410 315 482 243
Chlamydomonas frankii L43352 X68905 X68906 X68907 X68908 X68909 Z17230 1622 1752 1270 1140 56%/44% 61%/39% 270 570 305 535 552 273 571 254 440 147 442 145 360 280 434 206
Chlamydomonas geitleri L43353 X68891 X68892 Z15153 1640 1708 1281 1213 56%/44% 58%/42% 297 579 302 574 541 270 552 259 434 151 436 149 368 281 418 231
Chlamydomonas gelatinosa Z15151 1620 1714 1284 1190 56%/44% 59%/41% 269 572 294 547 556 274 563 267 440 160 447 153 355 278 410 223
Chlamydomonas humicola L42989 X68921 X68922 Z17235 1624 1750 1286 1160 56%/44% 60%/40% 285 568 308 545 546 275 567 254 433 155 439 149 360 288 436 212
Chlamydomonas indica X68893 X68894 X68895 X68896 X68897 X68898 Z17228 1716 1872 1411 1255 55%/45% 60%/40% 320 622 351 591 553 303 585 271 439 186 465 160 404 300 471 233
Chlamydomonas iyengarii L43354 X68885 X68886 Z15148 1630 1766 1336 1200 55%/45% 60%/40% 278 583 305 556 554 287 578 263 439 165 461 143 359 301 422 238
Chlamydomonas komma L43502 X68927 X68928 X68929 Z17237 1628 1764 1271 1135 56%/44% 61%/39% 273 562 308 527 559 276 574 261 438 151 457 132 358 282 425 215
Chlamydomonas mexicana L49148 X68910 X68911 X68912 Z17231 1640 1728 1279 1191 56%/44% 59%/41% 285 571 305 551 549 276 559 266 435 161 448 148 371 271 416 226
Chlamydomonas pallidostigmatica L43503 X68899 X68900 X68901 X68902 X68903 X68904 Z17229 1730 1952 1452 1230 54%/46% 61%/39% 300 628 359 569 577 307 617 267 448 185 480 153 405 332 496 241
Chlamydomonas peterfii L43538 X68887 X68888 Z15149 1632 1802 1328 1158 55%/45% 61%/39% 286 588 330 544 542 279 571 250 433 167 444 156 371 294 457 208
Chlamydomonas pitschmannii Z15152 1646 1844 1371 1173 55%/45% 61%/39% 293 611 342 562 539 295 580 254 432 169 459 142 382 296 463 215
Chlamydomonas reinhardtii X15727 X16686 X16687 1694 1756 1208 1146 58%/42% 61%/39% 286 555 295 546 578 254 583 249 467 128 455 140 363 271 423 211
Chlamydomonas sp. SAG 66.72 L43539 X68923 X68924 X68925 X68926 Z17236 1698 1892 1435 1241 54%/46% 60%/40% 306 623 349 580 560 304 597 267 451 181 477 155 381 327 469 239
Chlamydomonas starrii L43504 X68889 X68890 Z15150 1638 1852 1494 1280 52%/48% 59%/41% 278 605 304 579 554 342 622 274 439 222 493 168 367 325 433 259
Chlamydomonas zebra L43356 Z17233 1630 1778 1325 1177 55%/45% 60%/40% 274 582 302 554 553 287 587 253 442 165 470 137 361 291 419 233
Chlorella ellipsoidea M36158 1678 1980 1529 1227 52%/48% 62%/38% 300 641 346 595 561 324 644 241 449 209 516 142 368 355 474 249
Conopholis americana X59768 X58863 1620 1726 1292 1186 56%/44% 59%/41% 240 565 266 539 582 300 597 285 480 178 499 159 318 249 364 203
Epifagus virginiana X62099 1630 1750 1278 1158 56%/44% 60%/40% 234 552 263 523 596 301 612 285 491 173 511 153 309 252 364 197
Euglena gracilis X12890 X13310 1686 1702 1191 1175 59%/41% 59%/41% 359 558 364 553 496 243 487 252 375 102 359 118 456 288 492 252
Marchantia polymorpha X04465 1646 1740 1268 1174 56%/44% 60%/40% 248 568 271 545 596 278 599 275 475 166 482 159 327 256 388 195
Nicotiana tabacum Z00044 1658 1764 1255 1149 57%/43% 61%/39% 232 540 253 519 614 303 629 288 499 182 505 176 313 230 377 166
Odontella sinensis Z67753 1660 1738 1246 1168 57%/43% 60%/40% 334 558 342 550 522 276 527 271 396 128 407 117 408 284 462 230
Oryza sativa X15901 1700 1812 1279 1167 57%/43% 61%/39% 242 559 271 530 628 302 635 295 510 181 521 170 320 237 385 172
Palmaria palmata Z18289 1646 1712 1239 1173 57%/43% 59%/41% 300 568 304 564 543 266 552 257 432 138 427 143 371 267 429 209
Pisum sativum X55033 M37430 1658 1728 1259 1189 57%/43% 59%/41% 246 555 264 537 601 294 600 295 487 175 497 165 324 235 367 192
Plasmodium falciparum (plastid-like) X61660 X95275 1564 1694 1136 1006 58%/42% 63%/37% 599 576 634 541 182 142 213 111 145 54 130 69 638 364 717 285
Toxoplasma gondii (plastid-like) U18086 1478 1726 1421 1173 51%/49% 60%/40% 441 669 507 603 307 226 356 177 240 123 261 102 490 403 602 291
Zea mays Z00028 1756 1810 1225 1171 59%/41% 61%/39% 253 541 255 539 647 286 650 283 535 161 532 164 321 237 373 185
Eukaryotic Mitochondrion   Paired Unpaired Ratio1 A2 G C U
C M C M C M PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM
Acanthamoeba castellanii U03732 1522 1668 1197 1051 56%/44% 61%/39% 417 531 448 500 351 215 386 180 255 100 244 111 499 351 590 260
Aedes albopictus X01078 652 910 683 425 49%/51% 68%/32% 239 279 347 171 80 72 108 44 45 31 47 29 288 301 408 181
Albinaria caerulea X83390 536 638 499 397 52%/48% 62%/38% 188 210 210 188 81 69 109 41 74 54 81 47 193 166 238 121
Albinaria turrita X71393 X71394 530 640 547 437 49%/51% 59%/41% 175 213 196 192 97 70 124 43 72 67 79 60 186 197 241 142
Allomyces macrogynus U41288 1560 1938 1602 1224 49%/51% 61%/39% 377 640 445 572 426 328 524 230 338 204 403 139 419 430 566 283
Antilocapra americana M55540 726 790 847 783 46%/54% 50%/50% 183 402 184 401 181 95 211 65 175 169 173 171 187 181 222 146
Apis mellifera L06178 624 886 748 486 45%/55% 65%/35% 241 315 342 214 71 74 101 44 37 29 48 18 275 330 395 210
Artemia salina X12965 586 660 551 477 52%/48% 58%/42% 156 226 173 209 133 85 157 61 118 79 115 82 179 161 215 125
Ascaris suum X54253 442 612 518 348 46%/54% 64%/36% 128 137 198 67 84 79 108 55 38 22 45 15 192 280 261 211
Aspergillus nidulans J01390 X06961 1458 1942 1654 1170 47%/53% 62%/38% 411 767 609 569 334 210 362 182 248 115 256 107 465 562 715 312
Balaenoptera musculus X72204 714 820 861 755 45%/55% 52%/48% 188 389 207 370 169 104 203 70 165 177 169 173 192 191 241 142
Bos taurus J01394 724 826 847 745 46%/54% 53%/47% 185 408 205 388 179 98 208 69 176 154 176 154 184 187 237 134
Cacozeliana lacertina AF101007 656 810 685 531 49%/51% 60%/40% 163 302 203 262 168 107 202 73 136 77 155 58 189 199 250 138
Caenorhabditis elegans X54252 438 576 515 377 46%/54% 60%/40% 153 195 208 140 68 60 80 48 46 26 47 25 171 234 241 164
Cafeteria roenbergensis AF193903 1434 1534 1153 1053 55%/45% 59%/41% 376 546 371 551 352 207 396 163 270 108 276 102 436 292 491 237
Capra hircus M55541 652 848 920 724 41%/59% 54%/46% 167 423 220 370 165 105 204 66 160 161 173 148 160 231 251 140
Cepaea nemoralis U23045 474 752 741 463 39%/61% 62%/38% 121 236 180 177 124 131 196 59 90 118 139 69 139 256 237 158
Cervus unicolor M35875 650 862 922 710 41%/59% 55%/45% 168 430 238 360 164 106 193 77 154 154 158 150 164 232 273 123
Chlamydomonas eugametos AF008237 966 1098 949 817 50%/50% 57%/43% 260 468 282 446 237 144 267 114 177 111 200 88 292 226 349 169
Chlamydomonas reinhardtii X54860 U03843 952 1398 1467 1021 39%/61% 58%/42% 196 538 278 456 284 273 421 136 242 275 340 177 230 381 359 252
Chondrus crispus Z46224 Z47547 1406 1538 1177 1045 54%/46% 60%/40% 443 570 466 547 265 164 303 126 220 116 217 119 478 327 552 253
Crithidia fasciculata X02548 336 724 805 417 29%/71% 63%/37% 123 339 281 181 47 63 81 29 31 43 40 34 135 360 322 173
Crithidia oncopelti X51736 318 710 806 414 28%/72% 63%/37% 123 350 274 199 41 60 81 20 29 53 35 47 125 343 320 148
Crossostoma lacustre M91245 740 862 940 818 44%/56% 51%/49% 156 438 184 410 219 119 247 91 216 202 221 197 149 181 210 120
Damaliscus pygargus M86499 720 826 866 760 45%/55% 52%/48% 180 417 204 393 180 105 209 76 177 163 172 168 183 181 241 123
Dictyostelium discoideum D16466 1452 1666 1420 1206 51%/49% 58%/42% 403 658 463 598 354 264 370 248 250 120 266 104 445 378 567 256
Didelphis virginiana Z29573 722 784 848 786 46%/54% 50%/50% 202 399 211 390 164 83 181 66 161 143 150 154 195 223 242 176
Drosophila melanogaster X53506 632 862 692 462 48%/52% 65%/35% 243 294 326 211 68 81 105 44 46 33 50 29 275 284 381 178
Drosophila yakuba X03240 592 814 734 512 45%/55% 61%/39% 224 330 309 245 72 70 98 44 45 34 54 25 251 300 353 198
Equus caballus X79547 724 862 857 719 46%/54% 55%/45% 193 388 234 347 173 87 197 63 163 178 169 172 195 204 262 137
Euhadra herklotsi Z71693 519 604 503 418 51%/49% 59%/41% 158 209 187 180 94 59 115 38 77 47 75 49 190 188 227 151
Gallus gallus X52392 712 820 909 801 44%/56% 51%/49% 161 379 179 361 192 105 231 66 199 255 204 250 160 170 206 124
Homo sapiens D38112 710 770 848 788 46%/54% 49%/51% 178 368 180 366 183 88 205 66 178 221 171 228 171 171 214 128
Hydropotes inermis M35876 656 830 911 737 42%/58% 53%/47% 170 425 215 380 165 101 200 66 153 145 166 132 168 240 249 159
Katharina tunicata U09810 600 702 675 573 47%/53% 55%/45% 202 309 230 281 96 72 121 47 82 81 81 82 220 213 270 163
Leishmania tarentolae X02354 330 738 843 435 28%/72% 63%/37% 125 366 298 193 43 62 71 34 29 42 38 33 133 373 331 175
Leptomonas sp. J03814 320 724 842 438 28%/72% 62%/38% 118 347 280 185 40 77 82 35 30 45 44 31 132 373 318 187
Locusta migratoria X80245 618 838 696 476 47%/53% 64%/36% 201 243 289 155 100 72 130 42 67 39 71 35 250 342 348 244
Loligo bleekeri AB009838 598 856 704 446 46%/54% 66%/34% 181 267 273 175 117 118 155 80 63 35 71 27 237 284 357 164
Lumbricus terrestris U24570 542 644 703 601 44%/56% 52%/48% 152 308 176 284 120 73 146 47 110 133 124 119 160 189 198 151
Marchantia polymorpha M68929 1502 1714 1297 1085 54%/46% 61%/39% 292 535 331 496 472 284 526 230 397 172 430 139 341 306 427 220
Meloidogyne javanica L76261 358 1016 1154 496 24%/76% 67%/33% 135 437 403 169 37 108 105 40 13 42 29 26 173 567 479 261
Muntiacus reevesi M35877 804 822 764 746 51%/49% 52%/48% 223 373 220 376 184 77 191 70 171 135 158 148 226 179 253 152
Mus musculus J01420 728 846 853 735 46%/54% 54%/46% 202 404 232 374 167 88 191 64 155 148 158 145 204 213 265 152
Mytilus edulis M83756 628 780 614 462 51%/49% 63%/37% 169 228 205 192 140 125 185 80 103 62 112 53 216 199 278 137
Neurospora crassa X55443 1488 2130 1977 1335 43%/57% 61%/39% 405 811 579 637 344 340 486 198 271 228 353 146 468 598 712 354
Ochromonas danica AF287134 1448 1548 1143 1043 56%/44% 60%/40% 401 508 424 485 333 198 350 181 243 95 241 97 471 342 533 280
Odocoileus virginianus M35874 664 842 903 725 42%/58% 54%/46% 175 418 215 378 164 105 206 63 157 156 172 141 168 224 249 143
Oenothera berteriana X02559 1444 2008 1798 1234 45%/55% 62%/38% 254 587 347 494 482 444 657 269 408 333 528 213 300 434 476 258
Pan troglodytes D38113 710 758 848 800 46%/54% 49%/51% 185 369 178 376 176 86 201 61 176 221 172 225 173 172 207 138
Paracentrotus lividus J04815 710 840 841 711 46%/54% 54%/46% 185 395 206 374 178 97 214 61 155 136 176 115 192 213 244 161
Paracrostoma paludiformis AF101008 659 806 700 553 48%/52% 59%/41% 192 298 229 261 140 114 174 80 115 79 131 63 212 209 272 149
Paramecium primaurelia K00634 1331 1616 1302 1017 51%/49% 61%/39% 362 511 404 469 310 248 404 154 233 157 273 117 426 386 535 277
Paramecium tetraurelia K01749 1354 1572 1214 996 53%/47% 61%/39% 359 495 413 441 322 222 373 171 242 135 268 109 431 362 518 275
Pecten maximus X92688 634 876 777 535 45%/55% 62%/38% 124 272 189 207 186 186 249 123 127 68 152 43 197 251 286 162
Penicillium chrysogenum D13859 S56867 1446 2118 1970 1298 42%/58% 62%/38% 404 903 654 653 337 240 405 172 255 155 280 130 450 672 779 343
Phoca vitulina X63726 720 808 845 757 46%/54% 52%/48% 192 408 195 405 178 99 209 68 172 158 176 154 178 180 228 130
Physarum polycephalum AF080601 1386 1678 1393 1101 50%/50% 60%/40% 372 569 467 474 302 213 372 143 244 176 274 146 468 435 565 338
Pichia canadensis D31785 1412 1834 1673 1251 46%/54% 59%/41% 504 879 676 707 215 159 241 133 153 93 156 90 540 542 761 321
Podospora anserina X14735 X55026 1498 2320 2217 1395 40%/60% 62%/38% 410 912 626 696 347 379 534 192 273 258 377 154 468 668 783 353
Porphyra purpurea AF114794 1416 1552 1174 1038 55%/45% 60%/40% 383 533 402 514 320 191 374 137 278 137 283 132 435 313 493 255
Prototheca wickerhamii X68722 1522 1796 1482 1208 51%/49% 60%/40% 374 665 455 584 406 250 443 213 313 149 337 125 429 418 561 286
Pylaiella littoralis Z48620 1428 1564 1265 1129 53%/47% 58%/42% 290 544 325 509 430 248 457 221 336 159 366 129 372 314 416 270
Pyura stolonifera X74513 448 980 1108 576 29%/71% 63%/37% 135 376 294 217 91 213 196 108 49 87 98 38 173 432 392 213
Rana catesbeiana X12841 636 836 949 749 40%/60% 53%/47% 158 392 205 345 161 109 213 57 153 203 185 171 164 245 233 176
Rattus norvegicus J01438 628 788 931 771 40%/60% 51%/49% 169 429 198 400 152 108 196 64 148 182 164 166 159 212 230 141
Reclinomonas americana AF007261 1556 1644 1195 1107 57%/43% 60%/40% 350 536 368 518 442 258 454 246 352 114 343 123 412 287 479 220
Rhizopus stolonifer NPA 1418 1810 1458 1066 49%/51% 63%/37% 315 594 410 499 404 295 495 204 323 168 387 104 376 401 518 259
Rhodomonas salina AF288090 1480 1580 1183 1083 56%/44% 59%/41% 488 550 505 533 260 175 285 150 205 105 187 123 527 353 603 277
Saccharomyces cerevisiae J01527 1408 2024 1865 1249 43%/57% 62%/38% 505 898 740 663 220 199 272 147 157 123 178 102 526 645 834 337
Sceloporus undulatus L28075 687 750 819 756 46%/54% 50%/50% 167 380 171 376 183 88 204 67 183 188 180 191 154 163 195 122
Schizosaccharomyces pombe X06597 1438 1690 1388 1136 51%/49% 60%/40% 422 628 487 563 306 186 358 134 245 138 262 121 465 436 583 318
Strongylocentrotus purpuratus X12631 604 844 921 681 40%/60% 55%/45% 158 401 209 350 164 128 213 79 137 145 177 105 145 247 245 147
Suillus sinuspaulianus L47585 1478 2634 2738 1582 35%/65% 62%/38% 386 1186 794 778 360 377 523 214 282 227 358 151 450 948 959 439
Tetrahymena pyriformis M58010 1430 1642 1165 953 55%/45% 63%/37% 469 525 525 469 247 169 296 120 199 83 202 80 515 388 619 284
Tetrahymena pyriformis M58011 1406 1622 1189 973 54%/46% 63%/37% 467 530 517 480 238 176 294 120 197 83 196 84 504 400 615 289
Tragulus napu M55539 662 828 913 747 42%/58% 53%/47% 172 401 200 373 170 118 214 74 159 183 179 163 161 211 235 137
Triticum aestivum Z11889 Z14078 1448 2122 2019 1345 42%/58% 61%/39% 256 639 344 551 484 524 717 291 409 402 593 218 299 454 468 285
Trypanosoma brucei X02547 326 730 826 422 28%/72% 63%/37% 116 347 274 189 43 86 91 38 27 40 38 29 140 353 327 166
Xenopus laevis M10217 746 868 894 772 45%/55% 53%/47% 180 414 211 383 190 102 223 69 192 153 184 161 184 225 250 159
Zea mays K01868 1484 2150 2030 1364 42%/58% 61%/39% 261 639 358 542 495 524 717 302 420 403 583 240 308 464 492 280
Eukaryotic Nuclear   Paired Unpaired Ratio1 A2 G C U
C M C M C M PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM PC UPC PM UPM
Aedes albopictus L22060 1984 2718 2278 1544 47%/53% 64%/36% 366 708 454 620 623 549 905 267 515 514 747 282 480 507 612 375
Arabidopsis thaliana X52320 1996 2260 1543 1279 56%/44% 64%/36% 286 555 307 534 712 390 823 279 599 268 671 196 399 330 459 270
Babesia bigemina NPA 1746 2168 1687 1265 51%/49% 63%/37% 276 465 338 403 582 385 746 221 500 366 598 268 388 471 486 373
Brassica napus D10840 2028 2192 1512 1348 57%/43% 62%/38% 312 557 322 547 702 371 774 299 588 265 633 220 426 319 463 282
Caenorhabditis elegans X03680 2084 2318 1578 1344 57%/43% 63%/37% 367 526 403 490 670 357 756 271 519 250 580 189 528 445 579 394
Candida albicans L28817 2038 2200 1475 1313 58%/42% 63%/37% 369 556 395 530 648 335 705 278 487 199 526 160 534 385 574 345
Chlorella ellipsoidea D17810 D13340 2024 2146 1488 1366 58%/42% 61%/39% 345 553 347 551 669 344 726 287 561 246 596 211 449 345 477 317
Crithidia fasciculata Y00055 1824 2528 2253 1549 45%/55% 62%/38% 305 735 412 628 607 539 852 294 496 438 665 269 416 541 599 358
Dictyostelium discoideum X00601 V00189 1747 2142 1656 1261 51%/49% 63%/37% 356 628 451 533 513 348 620 241 382 230 450 162 496 450 621 325
Didymium iridis X60210 2026 2400 1831 1457 53%/47% 62%/38% 295 600 336 559 718 435 864 289 550 374 677 247 463 422 523 362
Drosophila melanogaster M21017 X15707 2038 2662 2085 1461 49%/51% 65%/35% 479 759 638 600 541 398 693 246 433 295 531 197 585 633 800 418
Encephalitozoon cuniculi AJ005581 1343 1578 1163 928 54%/46% 63%/37% 189 362 232 319 494 374 557 311 329 140 387 82 331 287 402 216
Entamoeba histolytica X65163 1836 2173 1779 1442 51%/49% 60%/40% 520 835 587 768 409 335 500 244 315 165 348 132 592 444 738 298
Euglena gracilis X53361 2098 2562 1954 1490 52%/48% 63%/37% 312 564 382 494 733 511 899 345 589 462 742 309 464 417 539 342
Filobasidiella neoformans var. bacillispora L14067 2072 2204 1472 1340 58%/42% 62%/38% 377 565 389 553 663 341 713 291 517 205 545 177 515 361 557 319
Fragaria x ananassa X15589 X58118 1994 2200 1547 1341 56%/44% 62%/38% 285 544 308 521 723 379 792 310 594 293 656 231 392 331 444 279
Giardia ardeae X58290 1592 1866 1234 960 56%/44% 66%/34% 141 348 141 348 654 387 792 249 618 335 716 237 179 164 217 126
Giardia intestinalis X52949 1626 1879 1222 969 57%/43% 66%/34% 104 317 90 331 705 397 850 252 679 382 796 265 138 126 143 121
Giardia muris X65063 1568 1806 1243 1005 56%/44% 64%/36% 226 412 276 362 556 300 627 229 485 274 540 219 301 257 363 195
Herdmania momus X53538 1908 2398 1813 1323 51%/49% 64%/36% 282 555 333 504 672 505 866 311 545 403 724 224 409 350 475 284
Hexamita inflata NPA 1552 1896 1548 1204 50%/50% 61%/39% 251 527 290 488 534 384 658 260 438 305 537 206 329 332 411 250
Homo sapiens J01866 M11167 2030 3542 3154 1642 39%/61% 68%/32% 268 563 301 530 760 1095 1470 385 648 1062 1297 413 354 434 474 314
Lycopersicon esculentum X13557 X52265 2022 2260 1518 1280 57%/43% 64%/36% 285 540 319 506 734 377 811 300 612 282 679 215 391 319 451 259
Microsporidium 57864 U90885 1320 1528 1224 1016 52%/48% 60%/40% 357 486 401 442 306 234 363 177 213 106 233 86 444 398 531 311
Mucor racemosus M26190 1941 2090 1530 1381 56%/44% 60%/40% 438 591 455 574 547 326 590 283 407 204 440 171 549 409 605 353
Mus musculus J01871 X00525 2042 3276 2827 1593 42%/58% 67%/33% 267 552 298 521 768 954 1340 382 649 857 1153 353 358 464 485 337
Naegleria gruberi Thesis, Mullican J. 1886 2330 1729 1285 52%/48% 64%/36% 365 612 465 512 575 390 700 265 447 261 540 168 499 466 625 340
Nosema apis U76706 1304 1578 1251 977 51%/49% 62%/38% 347 487 420 414 308 254 369 193 226 111 251 86 423 399 538 284
Nosema apis U97150 1323 1552 1158 929 53%/47% 63%/37% 355 459 404 410 309 243 372 180 223 112 245 90 436 344 531 249
Oryza sativa M11585 M16845 M35384 M82048 M19228 2024 2264 1517 1277 57%/43% 64%/36% 276 525 281 520 738 393 851 280 654 319 724 249 356 280 408 228
Physarum polycephalum V01159 V01160 2012 2452 1931 1491 51%/49% 62%/38% 311 664 370 605 705 456 856 305 565 385 696 254 431 426 530 327
Phytophthora megasperma X75631 X75632 2050 2482 1810 1378 53%/47% 64%/36% 361 603 420 544 659 452 821 290 516 264 617 163 514 491 624 381
Plasmodium falciparum (A gene) U21939 2116 2414 1830 1532 54%/46% 61%/39% 533 670 608 595 525 295 599 221 413 242 455 200 645 623 752 516
Plasmodium falciparum (S gene) U48228 2292 2730 2089 1651 52%/48% 62%/38% 612 848 736 724 542 368 629 281 393 184 413 164 745 689 952 482
Plasmodium vivax (A gene) NPA 2143 2544 1909 1508 53%/47% 63%/37% 525 689 614 600 545 350 658 237 430 274 485 219 643 596 787 452
Plasmodium vivax (O gene) NPA 1964 2796 2460 1628 44%/56% 63%/37% 453 830 645 638 538 511 753 296 418 370 562 226 555 749 836 468
Plasmodium vivax (S gene) NPA 1772 3494 3688 1966 32%/68% 64%/36% 399 1094 752 741 490 865 995 360 396 655 727 324 487 1074 1020 541
Pneumocystis carinii M86760 2054 2172 1449 1331 59%/41% 62%/38% 397 576 413 560 635 312 673 274 483 172 511 144 539 389 575 353
Prorocentrum micans M14649 M19230 X15973 1862 2236 1700 1326 52%/48% 63%/37% 347 598 413 532 577 385 705 257 462 274 540 196 476 443 578 341
Rattus norvegicus J01881 V01270 J01438 1558 3332 3385 1611 32%/68% 67%/33% 248 566 296 518 537 1218 1370 385 451 1117 1196 372 322 484 470 336
Saccharomyces cerevisiae U53879 2130 2230 1424 1324 60%/40% 63%/37% 384 556 413 527 674 329 702 301 518 180 531 167 554 359 584 329
Schizosaccharomyces japonicus Z32848 2090 2218 1488 1360 58%/42% 62%/38% 417 573 429 561 634 327 680 281 493 211 521 183 546 377 588 335
Schizosaccharomyces pombe J01359 Z19136 X51920 2116 2302 1540 1354 58%/42% 63%/37% 409 580 436 553 653 349 715 287 500 212 549 163 554 399 602 351
Sinapis alba X15915 X57137 2030 2222 1524 1332 57%/43% 63%/37% 304 554 320 538 713 372 791 294 596 274 654 216 417 324 457 284
Tetrahymena thermophila X54512 1964 2164 1537 1337 56%/44% 62%/38% 412 681 431 662 569 341 651 259 451 208 510 149 532 307 572 267
Theileria parva L28036 L28998 L26332 L26331 1806 2114 1590 1282 53%/47% 62%/38% 314 543 369 488 582 357 688 251 470 278 542 206 440 412 515 337
Toxoplasma gondii (P) X75453 1938 2236 1689 1391 53%/47% 62%/38% 367 542 413 496 597 373 705 265 485 266 556 195 489 508 562 435
Trepomonas agilis AF015455 1371 1640 1319 1050 51%/49% 61%/39% 275 494 317 452 410 285 503 192 324 214 388 150 362 326 432 256
Trypanosoma brucei X05682 X14553 X04986 1812 2600 2376 1588 43%/57% 62%/38% 285 661 410 536 614 551 890 275 503 492 703 292 410 672 597 485
Vairimorpha necatrix NPA 1357 1576 1154 935 54%/46% 63%/37% 383 471 445 409 298 216 343 171 211 101 228 84 465 366 560 271
Xenopus laevis X59734 2048 2852 2225 1421 48%/52% 67%/33% 265 523 283 505 773 733 1143 363 648 640 990 298 362 329 436 255
Zea mays NPA 1512 2188 2018 1342 43%/57% 62%/38% 248 564 276 536 511 601 818 294 440 525 712 253 313 328 382 259

† We count the number of A,G,C and U nucleotides paired or unpaired, regardless of the type of base-pair they appear in (i.e., canonical or non-canonical).
1 Paired and Unpaired percentages are calculated by dividing the number of paired or unpaired nucleotides in a given category by the total number of nucelotides for all sequences in that category.
2 C, Comparative; M, Mfold 3.1; PC, Comparative, Paired Nucleotides; UPC, Comparative, Unpaired Nucleotides; PM, Nucleotides Predicted to be Paired by MFold; UPM, Nucleotides Predicted to be Unpaired by MFold.
3 NPA, Not Publically Available - The sequence used for analysis has not been deposited in Genbank.