Pre_GI: SWBIT SVG BLASTN

Query: NC_017429:639530 Chlamydia trachomatis G/9768 chromosome, complete genome

Lineage: Chlamydia trachomatis; Chlamydia; Chlamydiaceae; Chlamydiales; Chlamydiae; Bacteria

General Information: Bacteria belonging to the Chlamydiales group are obligate intracellular parasites of eukaryotic cells. They are found within vertebrates, invertebrate cells, and amoebae hosts. Chlamydiae are one of the commonest causes of sexually transmitted diseases (STDs) and if left untreated may cause infertility in women. They are transmitted by direct contact or aerosols, and can cause various diseases, while also being able to coexist with the host in an apparently asymptomatic state. This species causes infection that leads to blindness and sexually transmitted diseases in humans. There are 15 serovariants that preferentially cause disease in either the eye or the urogenital tract. The trachoma (infection of the mucous membrane of the eyelids) biovars are noninvasive and can cause blinding trachoma (variants A, B, Ba, and C), or sexually transmitted diseases (variants, D, E, F, G, H, I, J, and K). The lymphogranuloma venereum biovars (variants L1, L2, and L3) can cross the epithelial cells of mucous membranes and then travel through the lymphatic system where they multiply within mononuclear phagocytes found within the lymph nodes.

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BLASTN Alignment.txt

Subject: NC_009727:1542000 Coxiella burnetii Dugway 7E9-12, complete genome

Lineage: Coxiella burnetii; Coxiella; Coxiellaceae; Legionellales; Proteobacteria; Bacteria

General Information: Coxiella burnetii Dugway 5J108-111 was isolated from rodents in Utah, USA. This organism is widely distributed in nature and can cause infections in reptiles, birds, and mammals. It causes Q fever, or 'query' fever, an atypical pneumonia first associated with abattoir workers in Australia. Transmission may be through insect vectors such as ticks that have bitten an infected wild or domesticated animal, or through an aerosol produced by domesticated animals such as sheep or cattle. The presence of a plasmid is believed to be associated with virulence and pathogenicity, however C. burnetii isolates containing plasmid QpDG are avirulent in guinea pigs and plasmidless isolates have been associated with endocarditis in humans. Coxiella burnetii has a developmental life cycle, and can grow vegetatively through binary fission, or asymmetrically and produce a spore-like cell. The spore-like cell may enable the organism to exist extracellularly for small amounts of time. This bacterium is an obligate intracellular pathogen. It is endocytosed by a host cell, a macrophage for example, and lives and replicates inside the phagolysozome, a unique property of this organism. The genome encodes proteins that have a higher than average pI, which may enable adaptation to the acidic environment of the phagolysozome. The chromosome also contains genes for a number of detoxification and stress response proteins such as dismutases that allow growth in the oxidative environment. The type IV system is similar to the one found in Legionella, which may be important for intracellular survival. This organism produces numerous ankyrin-repeat proteins that may be involved in interactions with the host cell. The genome has 83 pseudogenes, which may be a result of the typical genome-wide degradation observed with other intracellular organisms and also has a group I intron in the 23S ribosomal RNA gene.