Bioinformatic and partial functional analysis of pEspA and pEspB, two plasmids from Exiguobacterium arabatum sp. nov. RFL1109.
The complete nucleotide sequences of two plasmids from Exiguobacterium arabatum sp. nov. RFL1109, pEspA (4563bp) and pEspB (38,945bp), have been determined. Five ORFs were identified in the pEspA plasmid, and putative functions were assigned to two of them. Using deletion mapping approach, the Rep-independent replication region of pEspA, which functions in Bacillus subtilis, was localized within a 0.6kb DNA region. Analysis of the pEspB sequence revealed 42 ORFs. From these, function of two genes encoding enzymes of the Lsp1109I restriction-modification system was confirmed experimentally, while putative functions of another 18 ORFs were suggested based on comparative analysis. Three functional regions have been proposed for the pEspB plasmid: the putative conjugative transfer region, the region involved in plasmid replication and maintenance, and the region responsible for transposition of the IS21 family-like transposable elements.
Institute of Biotechnology, Graiciuno g. 8, Vilnius LT-02241, Lithuania. arturas.jakubauskas@santa.lt
Arturas
A
Jakubauskas
Edita
E
Kriukiene
Lelija
L
Trinkunaite
Rimantas
R
Sapranauskas
Sonata
S
Jurenaite-Urbanaviciene
Arvydas
A
Lubys
D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D019295:Computational Biology; D004269:DNA, Bacterial / Q000235:genetics; D005822:Genetic Vectors; D006094:Gram-Positive Bacteria / Q000235:genetics* / Q000378:metabolism; D008969:Molecular Sequence Data; D016366:Open Reading Frames / Q000235:genetics*; D010802:Phylogeny; D010957:Plasmids / Q000235:genetics* / Q000378:metabolism; D017422:Sequence Analysis, DNA
D001426:Bacterial Proteins; D004269:DNA, Bacterial