FIGURE 1.

Survey of RNA processing sites in operons. + indicates regions with processing observed (exact sites are in Table 1); −, regions with processing not observed; and n.d., experiment not done. Promoters are indicated with a bent arrow. In particular, note that there is a promoter upstream of MJ0217, inside the MJ0218 gene. Operons surveyed: (A) MJ0035–34, iron-sulfur cluster assembly proteins SufC and SufB; (B) MJ0113–112, CO dehydrogenase/acetyl-CoA synthase subunit delta, and 5-tetrahydromethanopterin:corrinoid iron-sulfur protein methyltransferase/CO dehydrogenase/acetyl-CoA synthase subunit γ; (C) MJ0891–893, Flagellins B1, B2, and B3; (D) MJ0842–846, Methyl coenzyme M reductase β subunit, operon protein D, operon protein C, γ subunit, and α subunit; (E) MJ0847–854, N5-methyltetrahydromethanopterin:coenzyme M methyltransferase subunits E, D, C, B, A, F, G, and H; and (F) MJ0223–216, V-type ATP synthase subunits G, I, K, E, C, F, A, and B.