Figure 2.

Organization of putative flagella biosynthesis genes on the chromosome of M. jannaschii. The sequence of this region was determined by Bult et al. (2), and, wherever known, the gene names have been shown; these designations have been derived through comparisons to the fla genes of M. voltae (13). The FlaI protein might code for a type II secretion system protein. The filled arrow boxes represent those genes whose polypeptide products were located on the 2-D gels (Fig. 1).