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CHOP has been applied to more than 60 completely-sequenced proteomes. Here are some statistics.

Organism Number of proteins Number of fragments Chopped proteins Single-domain Chopped proteins
Aeropyrum pernix K1 2692 3931 979(36%) 270(27%)
Achaeoglobus fulgidus 2394 4240 1583(66%) 561(35%)
Halobacterium sp. (strain NRC-1) 2058 3757 1295(62%) 383(29%)
Methanosarcina acetivorans 4532 8592 2611(57%) 707(27%)
Methanococcus jannaschii 1762 3142 1196(67%) 430(35%)
Methanopyrus kandleri 1683 2853 1019(60%) 348(34%)
Methanobacterium thermoautotrophicum 1862 3388 1249(67%) 427(34%)
Pyrococcus abyssi 1763 3273 1322(74%) 451(34%)
Pyrococcus furiosus 2061 3647 1401(67%) 468(33%)
Pyrococcus horikoshii 2063 3431 1163(56%) 371(31%)
Sulfolobus solfataricus 943 1568 571(60%) 182(31%)
Sulfolobus tokodaii 2826 4497 1520(53%) 514(33%)
Thermoplasma acidophilum 1475 2633 1003(68%) 332(33%)
Thermoplasma volcanium 1525 2686 1001(65%) 316(31%)
Aquifex aeolicus 1522 3039 1202(78%) 397(33%)
Bacillus subtilis 4093 7611 2632(64%) 791(30%)
Bifidobacterium longum 1728 3676 1260(72%) 259(20%)
Borrelia burgdorferi 850 1671 572(67%) 168(29%)
Brucella melitensis 2059 3980 1394(67%) 363(26%)
Campylobacter jejuni 1633 3001 1137(69%) 382(33%)
Caulobacter crescentus 3737 7117 2466(65%) 653(26%)
Chlamydia pneumoniae 1052 1938 632(60%) 197(31%)
Chlorobium tepidum 2251 4182 1407(62%) 411(29%)
Chlamydia trachomatis 894 1765 610(68%) 183(30%)
Clostridium acetobutylicum 3843 7350 2515(65%) 669(26%)
Clostridium perfringens 2723 5241 1869(68%) 532(28%)
Deinococcus radiodurans 3102 5883 1996(64%) 488(24%)
Escherichia coli 4280 8225 3044(71%) 903(29%)
Fusobacterium nucleatum 2058 3742 1320(64%) 407(30%)
Haemophilus influenzae 1708 3320 1312(76%) 463(35%)
Helicobacter pylori 1549 2803 1033(66%) 341(33%)
Lactococcus lactis (subsp. lactis) 2266 4153 1539(67%) 484(31%)
Leptospira interrogans 4726 7569 1978(41%) 501(25%)
Listeria innocua 2968 5454 2012(67%) 638(31%)
Listeria monocytogenes 2845 5402 2065(72%) 669(32%)
Mycoplasma genitalium 470 991 367(78%) 107(29%)
Mycobacterium leprae 1605 3346 1109(69%) 254(22%)
Mycoplasma pneumoniae 688 1386 484(70%) 128(26%)
Mycobacterium tuberculosis 4186 8233 2566(61%) 568(22%)
Neisseria meningitidis 2061 3688 1267(61%) 386(30%)
Oceanobacillus iheyensis 3491 6540 2407(68%) 748(31%)
Pasteurella multocida 2014 4057 1633(81%) 556(34%)
Pseudomonas aeruginosa 5562 11058 4032(72%) 1107(27%)
Rickettsia conorii 1374 2283 702(51%) 241(34%)
Rickettsia prowazekii 834 1678 642(76%) 223(34%)
Staphylococcus aureus 2622 4785 1752(66%) 571(32%)
Streptomyces coelicolor 7889 15121 4888(61%) 980(20%)
Streptococcus pyogenes 1845 3395 1230(66%) 387(31%)
Synechococcus elongatus 2473 4928 1688(68%) 458(27%)
Synechocystis PCC6803 3166 6356 2123(67%) 582(27%)
Thermotoga maritima 1844 3608 1391(75%) 440(31%)
Treponema pallidum 1031 2104 693(67%) 173(24%)
Ureaplasma urealyticum 611 1129 380(62%) 104(27%)
Vibrio cholerae 2735 5521 1966(71%) 561(28%)
Xanthomonas campestris (pv. citri) 4312 8271 2819(65%) 740(26%)
Xylella fastidiosa 2766 4738 1389(50%) 355(25%)
Arabidopsis thaliana 25528 61241 16619(65%) 1716(10%)
Caenorhabditis elegans 20244 45427 11736(57%) 1530(13%)
Drosophila melanogaster 14314 33601 8310(58%) 850(10%)
Saccharomyces cerevisiae 6349 13334 3474(54%) 466(13%)
Homo sapiens 36750 93619 22733(61%) 3098(13%)

If you find CHOP useful for your research, please cite:

  • Liu J & Rost B (2004) CHOP proteins into structural domain-like fragments. Proteins, 55(3):678-688 MEDLINE Paper text
  • Liu J & Rost B (2004) CHOP: Domain Dissection Based on Homology Nucleic Acids Research submitted.
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