Query: NC_010503:327517 Ureaplasma parvum serovar 3 str. ATCC 27815 chromosome, complete Lineage: Ureaplasma parvum; Ureaplasma; Mycoplasmataceae; Mycoplasmatales; Tenericutes; Bacteria General Information: This organism (Ureaplasma urealyticum biovar 1) is normally found as a commensal organism in the human genital tract. As an opportunistic pathogen, it can cause a sexually-transmitted disease and is recognized as causing non-chlamydial non-gonococcal urethritis. It can also cause obstetric complications in pregnant women, severe infections in infants, as well as meningitis. Like other Mollicutes, it is a wall-less bacterium and has undergone marked genome reduction. This organism appears to generate ATP through the hydrolysis of urea by the urease enzyme.
- Sequence; - BLASTN hit (Low score = Light, High score = Dark) - hypothetical protein; - cds: hover for description
General Information: This strain is found in the cedar aphid, Cinara cedri. Aphid endosymbiont. Almost all aphids contain maternally transmitted bacteriocyte cells, which themselves contain bacteria called Buchnera. The aphids live on a restricted diet (plant sap), rich in carbohydrates, but poor in nitrogenous or other essential compounds. 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.