GIB (Genome Information Broker) provides an integrated search of Bacteria, Archaea, Eukaryota complete genome sequences.Because the genome sequence data of Shigella flexneri 2a 2457T, Nitrosomonas europaea ATCC 19718, and Bacillus anthracis Ames were released, we incorporated them to GIB, and now you can search those data.
References(Institutes):
-Shigella flexneri 2a 2457T(University of Wisconsin):
Complete Genome Sequence of the Q-fever Pathogen, Coxiella burnetii, Proc. Natl. Acad. Sci. U.S.A. (2003) In press

-Nitrosomonas europaea ATCC 19718(JGI):
Complete genome sequence of the ammonia oxidizing bacterium and obligate chemolithoautotroph Nitrosomonas europaea, J. Bacteriol. 185(9), 2759-2773 (2003)

-Bacillus anthracis Ames(TIGR):
Comparative genome sequencing for discovery of novel polymorphisms in Bacillus anthracis, Science 296 (5575), 2028-2033 (2002)

Sequence and organization of pXO1, the large Bacillus anthracis plasmid harboring the anthrax toxin genes, J. Bacteriol. 181 (20), 6509-6515 (1999)
The Genome Sequence of Bacillus anthracis Ames and Comparison to Closely-Related Bacteria, Nature 423, 81-86 (2003)