Pre_GI: SWBIT SVG BLASTP

Query: NC_017259:480656 Buchnera aphidicola str. Ua (Uroleucon ambrosiae) chromosome,

Lineage: Buchnera aphidicola; Buchnera; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria

General Information: It is believed that the Buchnera provide the essential nutrients the host lacks. Besides a nutritional co-dependence, due to a co-existence of millions of years, Buchnera have lost the ability to produce cell surface components such as lipopolysaccharides. This makes for an obligate endosymbiont relationship between host and Buchnera. Buchnera are prokaryotic cells which belong to the gamma-Proteobacteria, closely related to the Enterobacteriaceae family. Phylogenetic studies using 16S rRNA indicate that the symbiotic relationship was established around 200-250 million years ago. Since Buchnera are closely related to Escherichia coli and Haemophilus influenzae, comparative genomic studies can shed light on the evolutionary mechanisms of intracellular endosymbiosis as well as the different underlying molecular basis between organisms with parasitic behavior and symbionts.

Subject: NC_014363:480049 Olsenella uli DSM 7084 chromosome, complete genome

Lineage: Olsenella uli; Olsenella; Coriobacteriaceae; Coriobacteriales; Actinobacteria; Bacteria

General Information: Isolation: Human gingival crevice; Temp: Mesophile; Temp: 37C. The bacteria are nonmotile, Gram-positive rods that occur singly, in pairs, and in short chains; the central part of the cell may swell particularly when grown on solid medium. This strain is microaerotolerant to anaerobic and grows optimally at 37 degrees Celsius. Olsenella uli (formerly Lactobacillus uli) has been isolated from human gingival crevices and periodontal pockets.