Characterization of the Replication and Stability Regions of Agrobacterium Tumefaciens Plasmid PTAR
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A 5.4-kilobase region containing the origin of replication and stability maintenance of the 44-kilobase Agrobacterium tumefaciens plasmid pTAR has been mapped and characterized. Within this region is a 1.3-kilobase segment that is capable of directing autonomous replication. The remaining segment contains the stability locus for maintenance of pTAR during nonselective growth. Approximately 35% of pTAR shares sequence homology with pAg119, a 44-kilobase cryptic plasmid in grapevine strain 1D1119. However, no homology was detected between pTAR DNA and several Ti plasmids or several other small cryptic plasmids in many A. tumefaciens strains. A recombinant plasmid containing the origin of replication and stability maintenance region of pTAR was compatible with pTiC58, pTi15955, and pTi119 and incompatible with pAg119. A new compatibility group, Inc Ag-1, is discussed.
Zhi L, TeRonde S, Meyer S, Arling M, Register 3rd J, Zhao Z Plant Cell Rep. 2015; 34(5):745-54.
PMID: 25558819 DOI: 10.1007/s00299-014-1734-0.
Cho H, Winans S Proc Natl Acad Sci U S A. 2005; 102(41):14843-8.
PMID: 16195384 PMC: 1253548. DOI: 10.1073/pnas.0503458102.
pTAR-encoded proteins in plasmid partitioning.
Kalnin K, Stegalkina S, Yarmolinsky M J Bacteriol. 2000; 182(7):1889-94.
PMID: 10714993 PMC: 101871. DOI: 10.1128/JB.182.7.1889-1894.2000.
Feldstein P, Hu Y, Owens R Proc Natl Acad Sci U S A. 1998; 95(11):6560-5.
PMID: 9601006 PMC: 27879. DOI: 10.1073/pnas.95.11.6560.
Lee C, Langlois B, Dawson K Appl Environ Microbiol. 1993; 59(5):1467-72.
PMID: 8517740 PMC: 182105. DOI: 10.1128/aem.59.5.1467-1472.1993.