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Table 1 General features of different H. pylori genomes.

From: Sequencing, annotation, and comparative genome analysis of the gerbil-adapted Helicobacter pylori strain B8

H. pylori
strain
B8 26695 J99 HPAG1 P12
accession
number
FN598874 NC_000915 NC_000921 NC_008086 NC_011498
Basic Features
chromosome
length
1,673,997 bp 1,667,867 bp 1,643,831 bp 1,596,366 bp 1,673,813 bp
plasmid pHPB8 (6,032 bp,
GC 35.9%)
   pHPAG1 (9,370 bp,
GC 36.4%)
pHPP12 (10,225 bp,
GC 35.1%)
GC content 38.8% 38.9% 39.2% 39.1% 38.8%
CDS density 91.8% 90.2% 90.2% 91.9% 89.7%
number of CDS 1,711 1,576 1,489 1,536 1,568
average length 897 955 990 954 957
annotated 929 (54.3%) 918 (58.2%) 712 (47.8%) 1,013 (66.0%) 1,111 (70.9%)
strain-specific
CDS
293 204 112 152 202
thereof
annotated
3 9 1 8 2
Type IV Secretion Systems #
cag PAI 670,637 - 720,370
HPB8_696 - HPB8_741
+ + + 552,705 - 589,225
HPP12_0527 - HPP12_0555
com B I: 1,575,414 - 1,578,323
HPB8_1608 - HPB8_1610*
+    I: 13,587 - 16,496
HPP12_0013 - HPP12_0015
  II: 1,551,606 - 1,554,461
HPB8_1583 - HPB8_1585*
  II: 37,867 - 40,719
jhp0034 - jhp0036
II: 38,692 - 41,645
HPAG1_0036 - HPAG1_0039
II: 36,339 - 40,378
HPP12_0033 - HPP12_0037
T4SS-3 (tfs 3) 510,833 - 526,789
HPB8_538 - HPB8_554*
fragmented - - 1,394,833 - 1,411,026
HPP12_1320 - HPP12_1337
T4SS-4 (tfs 4) fragmented, surrounding T4SS-3   ? ? 452,423 - 492,710
HPP12_0437 - HPP12_0473
Plasticity Zones #
  PZ1:452,011 - 533,220
HPB8_481 - HPB8_564
left: 449,150 - 479,531
HP_0428 - HP_0460
I: 1,012,090 - 1,057,038
jhp0914 - jhp0951
  PZ1:452,423 - 492,710
HPP12_0437 - HPP12_0473
   right: 1,044,552 - 1,071,068
HP_0980 - HP_1009
   PZ2: 1,043,356 - 1,053,784
HPP12_0980 - HPP12_0993
      PZ3: 1,394,833 - 1,423,818
HPP12_1320 - HPP12_1353
RNA Elements §
rRNA 23S | 16S | 5S 2 | 2 | 2 2 | 2 | 2+1 2 | 2 | 2 2 | 2 | 2 2 | 2 | 2
tRNA 36 36 36 36 36
  1. # notation for nucleotide range: first position last position; notation for gene range: first_gene-last_gene
  2. * genes occur on reverse strand
  3. § number of gene copies
  4. ‡ strain 26695 contains two sets of 23S and 5S rRNA and one additional 5S rRNA without associated 23S rRNA