| Genome | Super Kingdom | Taxon Group | Released Date | Complete | GC Content | Genome Size |
|---|---|---|---|---|---|---|
| Afipia sp. 1NLS2 | Bacteria | Alphaproteobacteria | June 18, 2010 | 0 | 0.0 | 4.0 |
| Agrobacterium radiobacter K84 | Bacteria | Alphaproteobacteria | Jan. 27, 2009 | 1 | 59.9 | 7.31 |
| Agrobacterium tumefaciens str. C58 | Bacteria | Alphaproteobacteria | Dec. 18, 2001 | 1 | 59.0 | 5.65 |
| Agrobacterium vitis S4 | Bacteria | Alphaproteobacteria | Jan. 27, 2009 | 1 | 57.5 | 6.31 |
| Aurantimonas manganoxydans SI85-9A1 | Bacteria | Alphaproteobacteria | March 23, 2006 | 0 | 66.7 | 5.0 |
| Azorhizobium caulinodans ORS 571 | Bacteria | Alphaproteobacteria | Oct. 16, 2007 | 1 | 67.3 | 5.4 |
| Bartonella bacilliformis KC583 | Bacteria | Alphaproteobacteria | Jan. 4, 2007 | 1 | 38.2 | 1.4 |
| Bartonella grahamii as4aup | Bacteria | Alphaproteobacteria | June 19, 2009 | 1 | - | 2.33 |
| Bartonella henselae str. Houston-1 | Bacteria | Alphaproteobacteria | June 24, 2004 | 1 | 38.2 | 1.93 |
| Bartonella quintana str. Toulouse | Bacteria | Alphaproteobacteria | June 24, 2004 | 1 | 38.8 | 1.58 |
| Bartonella tribocorum CIP 105476 | Bacteria | Alphaproteobacteria | Nov. 25, 2007 | 1 | 38.8 | 2.62 |
| Beijerinckia indica subsp. indica ATCC 9039 | Bacteria | Alphaproteobacteria | April 11, 2008 | 1 | 57.0 | 4.45 |
| Bradyrhizobium japonicum USDA 110 | Bacteria | Alphaproteobacteria | Feb. 25, 2003 | 1 | 64.1 | 9.1 |
| Bradyrhizobium sp. BTAi1 | Bacteria | Alphaproteobacteria | May 11, 2007 | 1 | 64.8 | 8.53 |
| Bradyrhizobium sp. ORS278 | Bacteria | Alphaproteobacteria | May 1, 2007 | 1 | 65.5 | 7.5 |
| Brucella abortus NCTC 8038 | Bacteria | Alphaproteobacteria | Sept. 18, 2009 | 0 | 57.2 | 3.3 |
| Brucella abortus S19 | Bacteria | Alphaproteobacteria | May 22, 2008 | 1 | 57.2 | 3.3 |
| Brucella abortus bv. 1 str. 9-941 | Bacteria | Alphaproteobacteria | April 5, 2005 | 1 | 57.2 | 3.26 |
| Brucella abortus bv. 2 str. 86/8/59 | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.3 | - |
| Brucella abortus bv. 3 str. Tulya | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.2 | - |
| Brucella abortus bv. 4 str. 292 | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.3 | - |
| Brucella abortus bv. 5 str. B3196 | Bacteria | Alphaproteobacteria | April 1, 2010 | 0 | 57.2 | 3.3 |
| Brucella abortus bv. 6 str. 870 | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.2 | - |
| Brucella abortus bv. 9 str. C68 | Bacteria | Alphaproteobacteria | Feb. 18, 2009 | 0 | 57.2 | 0.6 |
| Brucella abortus str. 2308 A | Bacteria | Alphaproteobacteria | May 19, 2009 | 0 | 57.2 | - |
| Brucella canis ATCC 23365 | Bacteria | Alphaproteobacteria | Nov. 29, 2007 | 1 | 57.2 | 3.3 |
| Brucella ceti B1/94 | Bacteria | Alphaproteobacteria | Feb. 18, 2009 | 0 | 57.3 | 0.01 |
| Brucella ceti M13/05/1 | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.3 | - |
| Brucella ceti M490/95/1 | Bacteria | Alphaproteobacteria | Feb. 18, 2009 | 0 | 57.3 | - |
| Brucella ceti M644/93/1 | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.2 | - |
| Brucella ceti str. Cudo | Bacteria | Alphaproteobacteria | March 24, 2009 | 0 | 57.2 | - |
| Brucella melitensis ATCC 23457 | Bacteria | Alphaproteobacteria | March 25, 2009 | 1 | 57.2 | 3.3 |
| Brucella melitensis biovar Abortus 2308 | Bacteria | Alphaproteobacteria | Nov. 22, 2005 | 1 | 57.2 | 3.32 |
| Brucella melitensis bv. 1 str. 16M | Bacteria | Alphaproteobacteria | Jan. 5, 2002 | 1 | 57.2 | 3.29 |
| Brucella melitensis bv. 1 str. 16M | Bacteria | Alphaproteobacteria | Sept. 18, 2009 | 0 | 57.2 | 3.3 |
| Brucella melitensis bv. 1 str. Rev.1 | Bacteria | Alphaproteobacteria | Feb. 18, 2009 | 0 | 57.3 | - |
| Brucella melitensis bv. 2 str. 63/9 | Bacteria | Alphaproteobacteria | Feb. 18, 2009 | 0 | 57.2 | - |
| Brucella melitensis bv. 3 str. Ether | Bacteria | Alphaproteobacteria | Feb. 18, 2009 | 0 | 57.2 | 0.01 |
| Brucella microti CCM 4915 | Bacteria | Alphaproteobacteria | Aug. 18, 2009 | 1 | - | 5.42 |
| Brucella neotomae 5K33 | Bacteria | Alphaproteobacteria | Feb. 18, 2009 | 0 | 57.3 | 0.01 |
| Brucella ovis ATCC 25840 | Bacteria | Alphaproteobacteria | May 30, 2007 | 1 | 57.2 | 3.3 |
| Brucella pinnipedialis B2/94 | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.2 | - |
| Brucella pinnipedialis M163/99/10 | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.3 | - |
| Brucella pinnipedialis M292/94/1 | Bacteria | Alphaproteobacteria | Feb. 18, 2009 | 0 | 57.3 | - |
| Brucella sp. 83/13 | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.2 | - |
| Brucella sp. BO1 | Bacteria | Alphaproteobacteria | Sept. 3, 2010 | 0 | 0.0 | 3.4 |
| Brucella sp. BO2 | Bacteria | Alphaproteobacteria | Sept. 3, 2010 | 0 | 0.0 | 3.3 |
| Brucella sp. F5/99 | Bacteria | Alphaproteobacteria | Jan. 23, 2009 | 0 | 57.3 | - |
| Brucella sp. NF 2653 | Bacteria | Alphaproteobacteria | Sept. 3, 2010 | 0 | 0.0 | 3.1 |
| Brucella sp. NVSL 07-0026 | Bacteria | Alphaproteobacteria | April 1, 2010 | 0 | 57.2 | 3.3 |