Pre_GI Gene

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Host: NC_005126 NEIGHBOURS BLASTN Download Island sequence Download Island gene sequence(s)

NC_005126:1613818 Photorhabdus luminescens subsp. laumondii TTO1, complete genome

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.

StartEndLengthCDS descriptionQuickGO ontologyBLASTP
16152011615713513hypothetical proteinBLASTP
16159001616244345hypothetical proteinBLASTP
16171131617568456hypothetical proteinBLASTP
16175721617919348hypothetical proteinBLASTP
16181931618849657hypothetical proteinBLASTP
16188971619028132hypothetical protein
16190691619524456hypothetical proteinBLASTP
16195211619934414hypothetical proteinBLASTP
16198821620349468hypothetical proteinBLASTP
16203711620637267hypothetical proteinBLASTP
16204061620831426hypothetical proteinBLASTP
162119216223221131tyrosine recombinaseQuickGO ontologyBLASTP
16272601627598339hypothetical proteinBLASTP
16279781628295318hypothetical proteinBLASTP
16282921629104813hypothetical proteinBLASTP
163874016404041665hypothetical proteinBLASTP
16419881642788801hypothetical proteinBLASTP
164910516514382334Penicillin-binding protein 1C PBP-1CQuickGO ontologyBLASTP