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Table 7 Sequence Divergence of Some (A) Chlamydiales-specific vs (B) Broadly-Distributed Proteins

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

A       
Protein Loci/Identity C. tra C. mur C. pneu C. cav C. abo Protochlam
CT007 316/316 (100%) 273/316 (86%) 184/316 (58%) 185/316 (58%) 183/316 (57%) 48/316 (23%)
CT016 242/242 (100%) 205/242 (84%) 146/246 (59%) 153/245 (62%) 148/245 (60%) 83/246 (33%)
CT017 433/433 (100%) 358/440 (81%) 224/401 (55%) 241/432 (55%) 248/432 (57%) 123/415 (29%)
CT021 247/247 (100%) 184/247 (74%) 102/244 (41%) 115/244 (47%) 108/245 (44%) 73/254 (28%)
CT031 100/100 (100%) 84/100 (84%) 65/100 (65%) 63/100 (63%) 63/100 (63%) 36/95 (37%)
CT038 116/116 (100%) 95/114 (83%) 55/112 (49%) 52/98 (53%) 49/98 (50%) 34/94 (36%)
Average 100% 81.5% 55% 56% 55% 31%
B       
Protein Loci/Identity C. tra C. mur C. pneu C. cav C. abo Protochlam
CT008 Ribo. HII 300/300 (100%) 257/301 (85%) 186/301 (61%) 185/300 (61%) 185/300 (61%) 139/301 (45%)
CT009 HthTR 152/152 (100%) 133/151 (87%) 105/143 (69%) 101/143 (66%) 105/143 (69%) 47/162 (28%)
CT013 Cyt. Ox. I 446/446 (100%) 406/445 (91%) 317/448 (70%) 325/446 (72%) 328/446 (73%) 195/465 (41%)
CT015 PhoH 434/434 (100%) 394/434 (90%) 314/424 (72%) 339/430 (78%) 338/430 (77%) 218/433 (49%)
CT019 IleRS 1036/1036 (100%) 923/1036 (89%) 715/1043 (68%) 729/1043 (69%) 729/1043 (69%) 575/1038 (55%)
CT022 Ribo. L31 108/108 (100%) 103/108 (95%) 90/109 (81%) 87/208 (80%) 86/108 (79%) 67/117 (57%)
CT034 YtfF 341/341 (100%) 279/341 (81%) 183/338 (53%) 203/338 (59%) 203/339 (59%) 94/281 (27%)
Average 100% 88% 67% 69% 69% 43%
  1. The pair-wise amino acid sequence identity was determined for various chlamydial species for six C. trachomatis proteins that are specific for Chlamydiales (A) and seven other proteins that are broadly distributed in bacteria (B). The numbers in these Tables indicate the length over which the two sequences match each other as well as the % amino acid identity between the two sequences.
  2. The abbreviations in protein names in part (B) are as follows: Ribo. HII, Ribonuclease HII; HthTR, Helix-turn-helix transcriptional regulator; Cyt. Ox. I, Cytochrome oxidase subunit I; PhoH, PhoH-ATPase; IleRS, Isoleucyl tRNA synthetase; Ribo. L31, Ribosomal L31 protein; YtfF, YytF-cationic amino acid transporter.