Genomic highlights for the oral taxon 439, Chl1-2. Inferred N-acetylglucosamine (GlcNAc) and sialic acid N-acetylneuraminate (Neu5Ac) metabolism in oral chloroflexi. Enzymes for which coding genes were not found in the Chl1-2 dataset are indicated by dotted arrows. IM, inner membrane; CPS, capsular polysaccharide; LPS, lipopolysaccharide; pyr, pyruvate; PTS, mannose-type phosphotransferase system; ManNAc, N-acetylmannosamine; GlcN-6-P, glucosamine-6-phosphate; Fru-6-P, fructose-6-phosphate; EMP, Embden-Meyerhof-Parnas glycolytic pathway.