Proven VirB/D Genes are experimental verified genes which are with clearly function description as one component of T4SS , and also with research articles as evidence to support its function. These gene sequences were downloaded from NCBI database.
  Species name Genome ID   Proven VirB/D Genes
        VirB1 VirB2 VirB3 VirB4 VirB5 VirB6 VirB7 VirB8 VirB9 VirB10 VirB11 VirD4
Anaplasma centrale str. Israel NC_013532 0 11 1 2 0 1 0 1 1 1 1 1
Helicobacter pylori P12 NC_011498 0 2 2 1 0 1 2 2 2 2 4 2
Neorickettsia risticii str. Illinois NC_013009 0 2 1 2 0 4 0 2 2 2 1 1
Rickettsia bellii RML369-C NC_007940 0 1 1 2 0 5 0 2 2 1 1 1
Rickettsia massiliae MTU5 NC_009900 0 1 1 2 0 4 0 2 2 1 1 1
Anaplasma phagocytophilum HZ NC_007797 0 0 1 4 0 5 0 0 2 1 1 1
Neorickettsia sennetsu str. Miyayama NC_007798 0 1 1 2 0 4 0 2 2 1 1 1
Rickettsia typhi str. Wilmington NC_006142 0 0 1 2 0 5 0 2 2 1 1 1
Rickettsia africae ESF-5 NC_012633 0 1 1 2 0 4 0 2 2 1 1 1
Ehrlichia chaffeensis str. Arkansas NC_007799 0 0 1 2 0 4 0 2 2 1 1 1
Xanthomonas campestris pv. campestris str. 8004 NC_007086 1 1 1 1 0 4 0 1 1 1 1 2
Rickettsia bellii OSU 85-389 NC_009883 0 1 1 2 0 4 0 1 2 1 1 1
Orientia tsutsugamushi str. Ikeda NC_010793 0 0 1 2 0 5 0 2 1 1 1 1
Helicobacter pylori B8 NC_014256 0 0 0 2 0 2 0 1 2 2 3 1
Xanthomonas campestris pv. campestris str. ATCC 33913 NC_003902 1 1 1 1 0 4 0 1 1 1 1 1