Pre_GI: BLASTP Hits

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Query: NC_005126:3204980:3211074 Photorhabdus luminescens subsp. laumondii TTO1, complete genome

Start: 3211074, End: 3211814, Length: 741

Host Lineage: Photorhabdus luminescens; Photorhabdus; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria

General Information: This strain was isolated on Trinidad and Tobago. It is a symbiont of the nematode Heterorhabditis bacteriophora. Bioluminescent bacterium. This organism is unusual in that it is symbiotic within one insect, and pathogenic in another, the only organism that is known to exhibit this dual phenotype. Enzymes are then released by the bacteria that result in rapid degradation of the insect body, allowing both bacteria and nematode to feed and reproduce. During this period Photorhabdus luminescens releases bacteriocidal products, including antibiotics and bacteriocins, that prevent infection of the larva by competitive microbes. The result is promotion of Photorhabdus luminescens-nematode interactions that result in continuation of the symbiotic relationship. In order to engage in a symbiotic relationship with the nematode and a pathogenic one with the insect larva, the bacterium encodes specific factors that encourage both. These include a large number of genes that code for secreted toxins and enzymes, as well as genes that encode products for the production of antibiotics and bacteriocins. Secretion of these products occurs by an array of systems including type I, type II, and type III secretion systems. The type III system is closely related to the Yersinia plasmid-encoded type III system. Genes that promote symbiotic relationships are also encoded on genomic islands on the chromosome including some that affect nematode development. Virulence genes appear to be active during exponential growth. Symbiotic genes appear to function during stationary phase (post-exponential) growth. The switch from one state to another is controlled. Photorhabdus luminescens is capable of giving off light, a complex process that requires the products of the lux operon.




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SubjectStartEndLengthSubject Host DescriptionCDS descriptionE-valueBit score
NC_014616:862084:874167874167874880714Bifidobacterium bifidum S17 chromosome, complete genomeXhoI-like restriction endonuclease5e-34144
NC_015052:1313311:132866713286671329164498Bifidobacterium longum subsp. infantis 157F, complete genomeendonuclease4e-30131
NC_012796:1600600:161759716175971618337741Desulfovibrio magneticus RS-1, complete genometype II restriction enzyme4e-119427
NC_012918:3558500:357082935708293571587759Geobacter sp. M21 chromosome, complete genometype II site-specific deoxyribonuclease3e-43175
NC_019902:831911:838349838349838567219Thioalkalivibrio nitratireducens DSM 14787, complete genomeType II restriction enzyme like protein7e-1477.8