Pre_GI Gene

Some Help

Host: NC_003155 NEIGHBOURS BLASTN Download Island sequence Download Island gene sequence(s)

NC_003155:3994 Streptomyces avermitilis MA-4680, complete genome

Host Lineage: Streptomyces avermitilis; Streptomyces; Streptomycetaceae; Actinomycetales; Actinobacteria; Bacteria

General Information: This strain (ATCC 31267) was isolated and characterized in 1978 by R. Burg and colleagues from a soil sample collected in Shizuoka Prefecture, Japan. Antibiotic-producing bacterium. The characteristic earthy smell of freshly plowed soil is actually attributed to the aromatic terpenoid geosmin produced by species of Streptomyces. There are currently 364 known species of this genus, many of which are the most important industrial producers of antibiotics and other secondary metabolites of antibacterial, antifungal, antiviral, and antitumor nature, as well as immunosuppressants, antihypercholesterolemics, etc. Streptomycetes are crucial in the soil environment because their diverse metabolism allows them to degrade the insoluble remains of other organisms, including recalcitrant compounds such as lignocelluloses and chitin. Streptomycetes produce both substrate and aerial mycelium. The latter shows characteristic modes of branching, and in the course of the streptomycete complex life cycle, these hyphae are partly transformed into chains of spores, which are often called conidia or arthrospores. An important feature in Streptomyces is the presence of type-I peptidoglycan in the cell walls that contains characteristic interpeptide glycine bridges. Another remarkable trait of streptomycetes is that they contain very large (~8 million base pairs which is about twice the size of most bacterial genomes) linear chromosomes with distinct telomeres. These rearrangements consist of the deletion of several hundred kilobases, often associated with the amplification of an adjacent sequence, and lead to metabolic diversity within the Streptomyces group. Sequencing of several strains of Streptomyces is aimed partly on understanding the mechanisms involved in these diversification processes. This organism is a well known producer of the anti-parasitic agent avermectin which is widely used to rid livestock of worm and insect infestations and to protect large numbers of people from river blindness in sub-Saharan Africa.


StartEndLengthCDS descriptionQuickGO ontologyBLASTP
39944932939hypothetical proteinBLASTP
493675632628helicaseQuickGO ontologyBLASTP
755496262073transposaseQuickGO ontologyBLASTP
988610635750hypothetical proteinBLASTP
1063210805174hypothetical proteinBLASTP
11101134972397hypothetical proteinBLASTP
13376155232148hypothetical proteinBLASTP
15815177011887hypothetical proteinBLASTP
17828189221095hypothetical proteinBLASTP
1944620279834hypothetical proteinBLASTP
2156222080519hypothetical proteinBLASTP
2224322770528hypothetical proteinBLASTP
2345723621165hypothetical protein
2367524559885IS1647-like transposaseQuickGO ontologyBLASTP