Pre_GI Gene

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

NC_004061:540354 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
540354543274292123S ribosomal RNAQuickGO ontologyBLASTP
54345254352372tRNA-GluQuickGO ontology
543669544490822shikimate 5-dehydrogenaseQuickGO ontologyBLASTP
544483545055573hypothetical 208 kDa proteinQuickGO ontologyBLASTP
545080545553474Smg proteinQuickGO ontologyBLASTP
545791546294504polypeptide deformylaseQuickGO ontologyBLASTP
546330547274945methionyl-tRNA formyltransferaseQuickGO ontologyBLASTP
54739754781341750S ribosomal protein L17QuickGO ontologyBLASTP
547868548857990DNA-directed RNA polymerase alpha subunitQuickGO ontologyBLASTP
54888654950662130S ribosomal protein S4QuickGO ontologyBLASTP
54953254992439330S ribosomal protein S11QuickGO ontologyBLASTP
54994255029835730S ribosomal protein S13QuickGO ontologyBLASTP
55041155052711750S ribosomal protein L36QuickGO ontology
5505615518801320preprotein translocase SecYQuickGO ontologyBLASTP
55189155232543550S ribosomal protein L15QuickGO ontologyBLASTP
55233055250918050S ribosomal protein L30QuickGO ontologyBLASTP
55251855302150430S ribosomal protein S5QuickGO ontologyBLASTP
55303755340236650S ribosomal protein L18QuickGO ontologyBLASTP
55340455397957650S ribosomal protein L6QuickGO ontologyBLASTP
55395155434339330S ribosomal protein S8QuickGO ontologyBLASTP
55437455467930630S ribosomal protein S14QuickGO ontologyBLASTP
55469755523654050S ribosomal protein L5QuickGO ontologyBLASTP
55525255556631550S ribosomal protein L24QuickGO ontologyBLASTP
55559055595836950S ribosomal protein L14QuickGO ontologyBLASTP
55609055634425530S ribosomal protein S17QuickGO ontologyBLASTP
55634155653819850S ribosomal protein L29QuickGO ontologyBLASTP
55653855694841150S ribosomal protein L16QuickGO ontologyBLASTP
55696155766270230S ribosomal protein S3QuickGO ontologyBLASTP
55768255801433350S ribosomal protein L22QuickGO ontologyBLASTP
55803355831127930S ribosomal protein S19QuickGO ontologyBLASTP
55832855914982250S ribosomal protein L2QuickGO ontologyBLASTP
55916555946730350S ribosomal protein L23QuickGO ontologyBLASTP
55946456006960650S ribosomal protein L4QuickGO ontologyBLASTP
56008756071663050S ribosomal protein L3QuickGO ontologyBLASTP
56075356106431230S ribosomal protein S10QuickGO ontologyBLASTP
5613275625111185elongation factor TuQuickGO ontologyBLASTP
5625705646782109elongation factor GQuickGO ontologyBLASTP