Pre_GI Gene

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

NC_005126:1265071 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
12650711265565495hypothetical protein
12655761265686111hypothetical protein
12656541265797144hypothetical protein
12658441266410567hypothetical proteinBLASTP
12666721266932261hypothetical proteinBLASTP
12676991267932234hypothetical protein
127109012722381149hypothetical proteinBLASTP
12745531274753201hypothetical protein
127475012761591410hypothetical proteinBLASTP
12990151299914900Transposase IS982 FamillyQuickGO ontologyBLASTP
13007411301553813hypothetical proteinBLASTP
13019031302790888hypothetical proteinBLASTP
13029201303225306hypothetical proteinBLASTP
13032221304076855hypothetical proteinBLASTP
13040981304553456hypothetical proteinBLASTP
130492913060411113tyrosine recombinaseQuickGO ontologyBLASTP
13094751309813339hypothetical proteinBLASTP
13101931310510318hypothetical proteinBLASTP
13105071311418912hypothetical proteinBLASTP
13118831312503621hypothetical proteinBLASTP
13125781312841264hypothetical proteinBLASTP
13128311313517687hypothetical proteinBLASTP
13135391313805267hypothetical proteinBLASTP
131435713154871131tyrosine recombinaseQuickGO ontologyBLASTP
131547413188003327hypothetical proteinBLASTP