Pre_GI Gene

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

NC_002528:31191 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
311913346722775-methyltetrahydropteroyltriglutamate-- homocysteine methyltransferaseQuickGO ontologyBLASTP
33590351671578IMP cyclohydrolaseQuickGO ontologyBLASTP
3530835586279DNA-binding protein hu-alphaQuickGO ontologyBLASTP
36321405444224DNA-directed RNA polymerase beta subunitQuickGO ontologyBLASTP
40622446504029DNA-directed RNA polymerase beta chainQuickGO ontologyBLASTP
448714523936950S ribosomal protein L7L12QuickGO ontologyBLASTP
453064580349850S ribosomal protein L10QuickGO ontologyBLASTP
460694676469650S ribosomal protein L1QuickGO ontologyBLASTP
467674719542950S ribosomal protein L11QuickGO ontologyBLASTP
4724347788546transcription antitermination protein NusGQuickGO ontologyBLASTP
4779148174384preprotein translocase SecE subunitQuickGO ontologyBLASTP
484884856073tRNA-ThrQuickGO ontology
485764864772tRNA-GlyQuickGO ontology
486704875485tRNA-TyrQuickGO ontology
487704884273tRNA-ThrQuickGO ontology
48981500511071UDP-N-acetylenolpyruvoylglucosamine reductaseQuickGO ontologyBLASTP