Pre_GI Gene

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Host: NC_002528 NEIGHBOURS BLASTN Download Island sequence Download Island gene sequence(s)

NC_002528:546500 Buchnera aphidicola str. APS (Acyrthosiphon pisum), complete

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

General Information: This strain is found in the pea aphid, Acyrthosiphon pisum.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
54659454698639350S ribosomal protein L17QuickGO ontologyBLASTP
547031548020990DNA-directed RNA polymerase alpha subunitQuickGO ontologyBLASTP
54804954866962130S ribosomal protein S4QuickGO ontologyBLASTP
54869554909039630S ribosomal protein S11QuickGO ontologyBLASTP
54910854946435730S ribosomal protein S13QuickGO ontologyBLASTP
54955854967411750S ribosomal protein L36QuickGO ontologyBLASTP
5497005510131314preprotein translocase SecYQuickGO ontologyBLASTP
55102455145843550S ribosomal protein L15QuickGO ontologyBLASTP
55146355164218050S ribosomal protein L30QuickGO ontologyBLASTP
55165255215550430S ribosomal protein S5QuickGO ontologyBLASTP
55217155253936950S ribosomal protein L18QuickGO ontologyBLASTP
55254155309855850S ribosomal protein L6QuickGO ontologyBLASTP
55308855348039330S ribosomal protein S8QuickGO ontologyBLASTP
55350955381430630S ribosomal protein S14QuickGO ontologyBLASTP
55383255437154050S ribosomal protein L5QuickGO ontologyBLASTP
55438655470031550S ribosomal protein L24QuickGO ontologyBLASTP
55472655509436950S ribosomal protein L14QuickGO ontologyBLASTP
55520955546025230S ribosomal protein S17QuickGO ontologyBLASTP
55546055565719850S ribosomal protein L29QuickGO ontologyBLASTP
55565755606741150S ribosomal protein L16QuickGO ontologyBLASTP
55608855678970230S ribosomal protein S3QuickGO ontologyBLASTP
55680855714033350S ribosomal protein L22QuickGO ontologyBLASTP
55717655745427930S ribosomal protein S19QuickGO ontologyBLASTP
55747455829582250S ribosomal protein L2QuickGO ontologyBLASTP
55831055861230350S ribosomal protein L23QuickGO ontologyBLASTP
55860955921460650S ribosomal protein L4QuickGO ontologyBLASTP
55923255986163050S ribosomal protein L3QuickGO ontologyBLASTP
55989256020331230S ribosomal protein S10QuickGO ontologyBLASTP
5605355617191185elongation factor EF-TuQuickGO ontologyBLASTP
5617875638952109elongation factor GQuickGO ontologyBLASTP
56401056448047130S ribosomal protein S7QuickGO ontologyBLASTP