Abstract:
:The linear plasmid SCP1 of Streptomyces coelicolor A3(2) is one of the genetically more studied linear streptomycete replicons. Although the genetics of SCP1 and its interaction with the host chromosome have been analyzed for nearly three decades no information exists on its replication. With the help of an ordered cosmid contig for the complete 360-kb element, we have localized a 5439-bp fragment from the central region that confers autonomous replication in Streptomyces lividans. The minimal origin contains two overlapping ORFs which are separated from an AT-rich region which might correspond to the replication start point. ORF1 revealed intensive similarity to a class of DNA-primase/helicases of actinophages and archael plasmids. In addition, we have identified a region in both terminal inverted repeats of SCP1 that shows significant homology to the transposable element Tn4811 located near the ends of the S. lividans 66 chromosome.
journal_name
Plasmidjournal_title
Plasmidauthors
Redenbach M,Bibb M,Gust B,Seitz B,Spychaj Adoi
10.1006/plas.1999.1419keywords:
subject
Has Abstractpub_date
1999-11-01 00:00:00pages
174-85issue
3eissn
0147-619Xissn
1095-9890pii
S0147-619X(99)91419-1journal_volume
42pub_type
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