Pre_GI Gene

Some Help

Host: NC_004061 NEIGHBOURS BLASTN Download Island sequence Download Island gene sequence(s)

NC_004061:498483 Buchnera aphidicola str. Sg (Schizaphis graminum), complete genome

Host Lineage: Buchnera aphidicola; Buchnera; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria

General Information: This strain is the symbiont of the aphid Schizaphis graminum and contains a large circular chromosome. Aphid endosymbiont. Almost all aphids contain maternally transmitted bacteriocyte cells, which themselves contain bacteria called Buchnera. The aphids live on a restricted diet (plant sap), rich in carbohydrates, but poor in nitrogenous or other essential compounds. It is believed that the Buchnera provide the essential nutrients the host lacks. Besides a nutritional co-dependence, due to a co-existence of millions of years, Buchnera have lost the ability to produce cell surface components such as lipopolysaccharides. This makes for an obligate endosymbiont relationship between host and Buchnera. Buchnera are prokaryotic cells which belong to the gamma-Proteobacteria, closely related to the Enterobacteriaceae family. Phylogenetic studies using 16S rRNA indicate that the symbiotic relationship was established around 200-250 million years ago. Since Buchnera are closely related to Escherichia coli and Haemophilus influenzae, comparative genomic studies can shed light on the evolutionary mechanisms of intracellular endosymbiosis as well as the different underlying molecular basis between organisms with parasitic behavior and symbionts.

This island contains ribosomal proteins or RNA related elements and may indicate a False Positive Prediction!

StartEndLengthCDS descriptionQuickGO ontologyBLASTP
4953344985193186exodeoxyribonuclease V 125 kDa polypeptideQuickGO ontologyBLASTP
4984835020223540exodeoxyribonuclease V 135 kDa polypeptideQuickGO ontologyBLASTP
5020345038421809exodeoxyribonuclease V 67 kDa polypeptideQuickGO ontologyBLASTP
5038635051911329N-acetylglutamate synthaseQuickGO ontologyBLASTP
50538550545874tRNA-MetQuickGO ontology
5055935066931101membrane-bound lytic murein transglycosylaseQuickGO ontologyBLASTP
50672450720348067-dimethyl-8-ribityllumazine synthaseQuickGO ontologyBLASTP
507207508178972thiamine-monophosphate kinaseQuickGO ontologyBLASTP
508202508645444riboflavin biosynthesis protein RibDQuickGO ontologyBLASTP
508664509317654riboflavin biosynthesis protein RibDQuickGO ontologyBLASTP
509330509758429transcription antitermination protein NusBQuickGO ontologyBLASTP
50978551154217581-deoxy-D-xylulose-5-phosphate synthaseQuickGO ontologyBLASTP
511562512446885geranyltranstransferaseQuickGO ontologyBLASTP
5125435137031161hypothetical 490 kDa proteinQuickGO ontologyBLASTP
513763514107345hypothetical 124 kDa proteinQuickGO ontologyBLASTP
514111514965855protoheme IX farnesyltransferaseQuickGO ontologyBLASTP
514996515322327cytochrome O ubiquinol oxidase DQuickGO ontologyBLASTP
515322515891570cytochrome O ubiquinol oxidase CQuickGO ontologyBLASTP
5158885178671980cytochrome O ubiquinol oxidase BQuickGO ontologyBLASTP
517907518779873cytochrome O ubiquinol oxidase AQuickGO ontologyBLASTP
519108519443336BolA proteinQuickGO ontologyBLASTP
5196985210261329trigger factorQuickGO ontologyBLASTP
521153521746594ATP-dependent Clp protease proteolytic subunitQuickGO ontologyBLASTP
5218325231151284ATP-dependent protease ATP-binding subunitQuickGO ontologyBLASTP