Pre_GI: BLASTP Hits

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Query: NC_005126:3812054:3839720 Photorhabdus luminescens subsp. laumondii TTO1, complete genome

Start: 3839720, End: 3840502, Length: 783

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_012962:3568046:358635635863563587168813Photorhabdus asymbiotica, complete genomehypothetical protein1e-98358
NC_009832:1946401:197100419710041971783780Serratia proteamaculans 568, complete genomehypothetical protein1e-52206
NC_011745:258727:266707266707267483777Escherichia coli ED1a chromosome, complete genomehypothetical protein1e-31136
NC_020829:1307736:132313013231301323909780Pseudomonas denitrificans ATCC 13867, complete genomehypothetical protein2e-1582.8
NC_007511:1094050:110405311040531104976924Burkholderia sp. 383 chromosome 2, complete sequencehypothetical protein1e-0860.1
NC_012721:240000:249883249883250863981Burkholderia glumae BGR1 chromosome 2, complete genomehypothetical protein8e-0857.8