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Table 1 List of the Chlamydiales-specific proteins

From: BLAST screening of chlamydial genomes to identify signature proteins that are unique for the Chlamydiales, Chlamydiaceae, Chlamydophila and Chlamydia groups of species

Protein Loci Protein (Name/Size) C. tra C. mur C. pne C. cav C. abo Protochlam. Next best BLAST Hit (E value, protein length)
CT007 (AAC67597) hypoth, 316aa 0 8e-164 8e-108 6e-108 3e-105 8e-10, 320aa Plasmodium yoelii (0.063, 1491aa)
CT011 (AAC67601) hypoth, 418aa 0 0 7e-151 2e-155 1e-157 7e-47, 445aa Desulfotalea psychrophila (1e-06, 337aa)
CT016 (AAC67606) hypoth, 242aa 2e-139 3e-119 1e-82 4e-89 3e-86 2e-37, 233aa Rickettsia sibirica (0.20, 1851aa)
CT017 (AAC67607) hypoth. 433aa 0 0 1e-122 7e-133 9e-135 4e-52, 431aa Thermo. tengcongensis (1e-06, 306 aa)
CT021 (AAC67611) hypoth, 247aa 2e-139 4e-107 1e-47 3e-56 4e-53 2e-13, 245aa Xenopus laevis (1.7, 600aa)
CT031 (AAC67621) hypoth, 100aa 4e-51 4e-42 2e-25 4e-26 2e-26 0.010, 107aa Mus musculus (3.6, 384aa)
CT038 (AAC67628) hypoth, 116aa 1e-63 2e-49 4e-25 1e-25 2e-23 2e-09, 109aa Neurospora crassa (2.8, 1223aa)
CT053 (AAC67644) hypoth, 148aa 2e-61 4e-57 2e-51 1e-50 1e-48 5e-29, 155aa Xenopus tropicalis (4.7, 1049aa)
CT066 (AAC67657) hypoth, 158aa 3e-77 1e-75 8e-65 3e-65 5e-65 6e-41, 165aa Vibrio parahaemolyticus (1.8, 92aa)
CT079 (AAC67670) hypoth, 147aa 4e-81 1e-71 2e-06 1e-29 1e-29 3e-06, 172aa Leuconostoc mesenteroides (0.11, 263aa)
CT131 (AAC67722) PTMP, 1138aa 0 0 0 0 0 3e-33, 1348aa Plasmodium yoelii (0.31, 592aa)
CT181 (AAC67772) hypoth, 236aa 7e-131 1e-113 3e-77 7e-81 4e-80 2e-10, 200aa Acinetobacter sp. (0.94, 371aa)
CT260 (AAC67853) hypoth, 163aa 9e-91 9e-81 5e-62 3e-68 1e-67 4e-22, 159aa Sinorhizobium meliloti (0.18, 166aa)
CT266 (AAC67859) hypoth, 393aa 0 5e-179 9e-103 5e-120 2e-119 4e-08, 498aa Xanthomonas axonopodis (2.8, 189aa)
CT271 (AAC67864) hypoth, 95aa 1e-39 2e-36 7e-25 1e-25 9e-26 1e-10, 97aa Gibberella zeae (3.6, 1362)
CT273 (AAC67866) hypoth, 188aa 2e-89 1e-77 2e-60 5e-63 2e-63 0.001, 149aa Corynebacterium efficiens (0.34, 640aa)
CT274 (AAC67867) type III secretion chaperone, 139aa 3e-74 3e-70 1e-61 1e-62 1e-61 3e-31, 131aa Synechococcus elongatus (2e-05, 363aa)
CT303 (AAC67896) hypoth, 171aa 2e-81 5e-66 2e-40 2e-47 6e-47 3e-04, 177aa Yersinia pestis (1.3, 373aa)
CT309 (AAC67902) hypoth, 266aa 2e-144 2e-129 8e-86 1e-93 5e-94 2e-29, 263aa Methanococcus jannaschii (2.6, 434aa)
CT312 (AAC67905) pred. ferredoxin, 123aa 6e-67 6e-54 1e-30 7e-36 1e-35 1e-04, 130aa Pan troglodytes (1.2, 1524aa)
CT350 (AAC67945) hypoth, 566aa 0 0 2e-141 3e-157 1e-157 2e-30, 561aa Nostoc sp. PCC 7120 (7e-06, 1547aa)
CT351 (AAC67946) hypoth, 697aa 0 0 0 0 0 5e-53, 720aa Rattus norvegicus (3.4, 389aa)
CT355 (AAC67950) hypoth, 353aa 0 3e-161 3e-101 8e-101 1e-102 1e-21, 375aa Chromobacterium violaceum (0.82, 556aa)
CT384 (AAC67980) hypoth, 539aa 0 0 9e-106 4e-113 1e-111 2e-14, 580aa Pseudomonas fluorescens (0.29, 314aa)
CT387 (AAC67984) hypoth, 691aa 0 0 0 0 0 4e-160, 740aa Rubrobacter xylanophilus (5e-10, 263aa)
CT421.2 (AAC68031) hypoth, 53aa 5e-23 2e-22 5e-19 7e-20 4e-19 2e-12, 52aa no other BLAST hits
CT425 (AAC68022) hypoth, 621aa 0 0 0 0 0 0, 665aa Bordetella parapertussis (4e-10, 767aa)
CT429 (AAC68026) hypoth, 329aa 4e-165 4e-162 5e-149 2e-151 7e-151 8e-96, 388aa Geobacter sulfurreducens (2e-04, 146aa)
CT443 (AAC68042) OmcB, 553aa 0 0 0 0 0 4e-66, 558aa Rhodopirellula baltica (3e-25, 907aa)
CT446 (AAC68045) EUO protein, 183aa 1e-78 8e-72 1e-50 2e-53 1e-52 4e-41, 139aa Magnaporthe grisea (2.1, 1259aa)
CT474 (AAC68074) LysM protein, 336aa 2e-168 9e-116 5e-59 9e-71 7e-71 3e-04, 482aa no other BLAST hits
CT504 (AAC68105) hypoth, 288aa 2e-127 1e-105 4e-64 2e-69 2e-68 1e-23, 376aa Mus musculus (3.0, 961aa)
CT538 (AAC68140) hypoth, 238aa 8e-124 1e-120 5e-105 1e-108 1e-108 9e-65, 244aa Fritschea bemisiae (3e-59, 241aa) Enterococcus faecalis (0.067, 541aa)
CT546 (AAC68148) predicted OMP, 289aa 3e-163 4e-157 6e-87 1e-92 1e-93 3e-23, 249aa Legionella pneumophila (0.042, 254aa)
CT547 (AAC68149) hypoth, 318aa 2e-175 7e-158 8e-90 1e-92 2e-93 8e-29, 468aa Caenorhabditis elegans (4e-04, 1168aa)
CT548 (AAC68150) hypoth, 194aa 3e-89 2e-67 1e-48 2e-49 3e-48 0.004, 185aa Drosophila melanogaster (0.17, 826aa)
CT556 (AAC68158) hypoth, 159aa 1e-92 1e-82 9e-59 1e-60 1e-59 2e-06, 157aa Xenopus laevis (1.8, 1636aa)
CT560 (AAC68162) hypoth, 278aa 1e-135 2e-125 1e-86 4e-94 5e-93 0.002, 281aa no other BLAST hits
CT573 (AAC68175) hypoth, 409aa 0 1e-179 9e-90 3e-113 2e-106 1e-43, 472aa Pseudomonas syringae (0.46, 9376aa)
CT583 (AAC68185) Virulence plasmid pGP6 related protein, 263aa 5e-134 6e-118 4e-82 4e-91 2e-92 1e-46, 245aa Crocosphaera watsonii (0.036, 333aa)
CT590 (AAC68192) hypoth, 954aa 0 0 0 0 0 8e-96, 989aa Porphyromonas gingivalis (0.003, 645aa)
CT602 (AAC68205) hypoth, 130aa 5e-60 1e-55 2e-35 3e-37 1e-37 2e-19, 131aa Actinobacillus pleuropneumoniae (2.8, 300aa)
CT616 (AAC68220) hypoth, 429aa 0 0 2e-101 8e-115 3e-114 2e-09, 435aa Giardia lamblia (0.003, 1024aa)
CT623 (AAC68227) 76 kDa Homolog, 446aa 0 2e-155 5e-152 1e-154 1e-157 1e-28, 470aa Mycobacterium tuberculosis (0.18, 550aa)
CT631 (AAC68235) hypoth, 84aa 1e-32 2e-31 1e-24 3e-28 8e-28 1e-11, 82aa No other BLAST hits
CT635 (AAC68239) hypoth, 144aa 2e-62 5e-58 6e-45 1e-50 2e-51 4e-04, 146aa Gallus gallus (0.003, 1748aa)
CT642 (AAC68246) hypoth, 271aa 2e-134 2e-116 2e-74 2e-79 8e-81 2e-22, 300aa Rattus norvegicus (1.6, 509aa)
CT652.1 (AAC68830) hypoth, 59aa 5e-26 3e-24 7e-12 3e-12 7e-13 3e-05, 75aa Parachlamydia sp. (0.12, 70aa)
CT666 (AAC68261) hypoth, 83aa 5e-40 9e-31 3e-35 1e-36 9e-37 0.43, 92aa Sacchromyces cerevisiae (3.7, 604aa)
CT667 (AAC68262) hypoth, 149aa 3e-78 1e-65 3e-51 9e-55 4e-55 8e-16, 154aa Legionella pneumophila (0.005, 577aa)
CT670 (AAC68265) hypoth, 168aa 1e-29 1e-27 2e-23 4e-24 3e-23 9e-10, 165aa No other BLAST hits
CT734 (AAC68329) hypoth, 221aa 7e-106 1e-95 2e-51 1e-56 2e-57 1e-08, 240aa Caenorhabditis briggsae (1.1, 1072aa)
CT764 (AAC68359) hypoth, 268aa 2e-154 4e-113 1e-46 7e-59 4e-59 2e-05, 256aa Tetraodon nigroviridis (1.5, 388aa)
CT788 (AAC68383) leader (60) peptide-periplasmic, 166aa 1e-79 3e-61 9e-25 4e-34 1e-32 0.003, 158aa Caenorhabditis elegans (0.19, 2271aa)
CT809 (AAC68405) hypoth, 103aa 1e-55 2e-44, 146aa 5e-17 2e-23 2e-21 4e-05, 158aa Canis familiaris (2.1, 1831aa)
CT838 (AAC68435) YjgP/YjgQ family protein, 366aa 0 0 e-126 e-130 3e-128 6e-24, 360aa Prochlorococcus marinus (0.18, 592aa)
CT845 (AAC68442) hypoth, 92aa 2e-46 7e-33 1e-19 2e-17 1e-17 8e-10, 85aa Candida albicans (2.7, 557aa)
CT849.1 (AAC68455) hypoth, 62aa 2e-28 9e-24 5e-10 2e-09 1e-08 1e-05, 81aa No other BLAST hits
CT865 (AAC68463) hypoth, 329aa 2e-180 8e-146 7e-76 1e-77 4e-78 9e-23, 352aa Bacteroides thetaiotaomicron (0.20, 808aa)
  1. The Chlamydiales-specific proteins were identified by systematic BLASTP searches using Chl. trachomatis ORFs as probes, where the only significant BLAST hits obtained were for chlamydiae species (see Methods section). Accession numbers of the query sequences are shown beside the Chl. trachomatis loci (CT number) in the first column. The observed expected (E) values for various chlamydiae homologs as well as the first non-chlamydial hit in the BLAST results are given. E values of 0.0 indicate an extremely high degree of similarity between proteins sequences. The second column describes the function and the size of each query protein (protein sizes are described for other chlamydiae only if they noticeably differ from the query protein). Abbreviations are: C. tra, Chl. trachomatis; C. mur; Chl. muridarum; C. pne, Chlam. pneumoniae; C. cav, Chlam. caviae; C. abo, Chlam. abortus; hypoth, hypothetical protein; Omc; Outer membrane cytochrome; OMP, outer membrane protein; Protochlam, Protochlamydia; Pred., Predicted; PTMP, Possible transmembrane protein.
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BMC Genomics

ISSN: 1471-2164

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