Accession Numbers The EMBL Nucleotide Sequence Database http://www.ebi.ac.uk/embl accession number for the H. pylori strain B38 chromosome is [EMBL:FM991728]. All data and comparative genomics concerning the H. pylori B38 genome are stored in PyloriScope http://www.genoscope.cns.fr/agc/mage, a related database that is available to the public.