Nd J.W.T. contributed new reagents/analytic tools; W.D.S., M.C., P.C.C., A.L.C., L.C.D., B.M.H., L.E.K., A.K., S.L., S.D.M., H.M., L.P., P.R., S.S., W.M.S., Y.S., H.L.T., T. Tomo, T. Tsuchiya, Z.T.W., and R.E.B. analyzed data; and W.D.S. and M.C. wrote the paper. The authors declare no conflict of interest. This article is a PNAS Direct Submission. Data deposition: The sequences reported in this p
Nd J.W.T. contributed new reagents/analytic tools; W.D.S., M.C., P.C.C., A.L.C., L.C.D., B.M.H., L.E.K., A.K., S.L., S.D.M., H.M., L.P., P.R., S.S., W.M.S., Y.S., H.L.T., T. Tomo, T. Tsuchiya, Z.T.W., and R.E.B. analyzed data; and W.D.S. and M.C. wrote the paper. The authors declare no conflict of interest. This article is a PNAS Direct Submission. Data deposition: The sequences reported in this p
Cystis and Nostoc at 8.4 (28.1 ) and 9.8 (36.1 ), respectively. Another possible influence on the expansion is the presence of duplicate copies of recA, an important multifunctional DNA repair and recombination enzyme found in nearly every organism (reviewed in ref. 22). There are an astounding seven distinct copies of this gene (recA) found in the A. marina genome, far greater than the previous
Cystis and Nostoc at 8.4 (28.1 ) and 9.8 (36.1 ), respectively. Another possible influence on the expansion is the presence of duplicate copies of recA, an important multifunctional DNA repair and recombination enzyme found in nearly every organism (reviewed in ref. 22). There are an astounding seven distinct copies of this gene (recA) found in the A. marina genome, far greater than the previous
Ed in Na -transport. However, it is clear that this class of ATP synthase does not share any greater degree of similarity to Na -transport systems in Ilyobacter tartaricus and others (27) than to other ATP synthases. The primary sequences of these proteins are so divergent from other ATP synthases that a thorough biochemical study is needed to confidently propose a functional role.Chlorophyll Bios
Ed in Na -transport. However, it is clear that this class of ATP synthase does not share any greater degree of similarity to Na -transport systems in Ilyobacter tartaricus and others (27) than to other ATP synthases. The primary sequences of these proteins are so divergent from other ATP synthases that a thorough biochemical study is needed to confidently propose a functional role.Chlorophyll Bios
E homologs to all known chlorophyll a biosynthesis genes. The two proteins responsible for the biosynthesis of Chl a from protoporphyrin IX, magnesium-protoporphyrin IX monomethyl ester oxidative cyclase (AcsF) and chlorophyll synthase (ChlG) (30), are highly homologous to those in other cyanobacteria, including a common conserved duplication of acsF. This indicates that Chl d is likely synthesize
Tegory (rings 1 and 2), deviation from average GC content (ring 3), and GC skew (ring 4). All plasmids are represented at 10 scale for visualization except pREB9 at 500. Color codes are as follows: turquoise, small-molecule biosynthesis; yellow, central or intermediary metabolism; orange, energy metabolism; red, signal transduction; light blue, DNA metabolism; blue, transcription; purple, protein