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. 1986 Nov;83(21):8263–8267. doi: 10.1073/pnas.83.21.8263

Insertion sequence elements of Pseudomonas savastanoi: Nucleotide sequence and homology with Agrobacterium tumefaciens transfer DNA

Tetsuji Yamada *, Ping-Du Lee †, Tsune Kosuge *
PMCID: PMC386908  PMID: 16593778

Abstract

Two types of transposable elements, IS51 and IS52 (IS, insertion sequence), were found in Pseudomonas syringae subsp. savastanoi (P. savastanoi) that spontaneously insert into and inactivate iaaM; the insertion results in the loss of indoleacetic acid production and attenuation of virulence. The nucleotide sequences of both IS elements have sizes and structural features common to other prokaryotic IS elements; IS51 is 1311 base pairs (bp) long and has terminal inverted repeats of 26 bp; IS52 is 1209 bp long and has terminal inverted repeats of 10 bp with a 1 bp mismatch. In the insertion involving IS51, the trinucleotide sequence CAG is duplicated within iaaM sequences at the recombination junction; in those involving IS52 the tetranucleotide sequences TTAG or CTAG are duplicated within iaaM sequences at the recombination junction. A copy of IS51 occurs 2.5 kilobases downstream from IaaH. In contrast to the high copy number of IS51 in the genome of the bacterium, only a few copies of IS52 are present. No nucleotide sequence homology was found between IS51 and IS52. However, a striking nucleotide sequence homology was found between a 531-bp region of IS51 and a portion of the central region of transfer DNA (T-DNA) in the octopine plasmid pTi15955 from Agrobacterium tumefaciens. These observations, together with our earlier finding on the homology between iaaM and iaaH and between gene 1 and gene 2 of transfer DNA, further suggest that genes for indoleacetic acid production in the two systems have a common origin.

Keywords: plant tumorigenicity, transposition, tryptophan monooxygenase, indoleacetamide hydrolase

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Bassel B. A., Mills D. R. Initiation of translation with Pseudomonas aeruginosa phage PP7 RNA: nucleotide sequence of the coat cistron ribosome binding site. Nucleic Acids Res. 1979;6(5):2003–2016. doi: 10.1093/nar/6.5.2003. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Biggin M. D., Gibson T. J., Hong G. F. Buffer gradient gels and 35S label as an aid to rapid DNA sequence determination. Proc Natl Acad Sci U S A. 1983 Jul;80(13):3963–3965. doi: 10.1073/pnas.80.13.3963. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Comai L., Kosuge T. Cloning characterization of iaaM, a virulence determinant of Pseudomonas savastanoi. J Bacteriol. 1982 Jan;149(1):40–46. doi: 10.1128/jb.149.1.40-46.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Comai L., Kosuge T. Transposable element that causes mutations in a plant pathogenic Pseudomonas sp. J Bacteriol. 1983 Jun;154(3):1162–1167. doi: 10.1128/jb.154.3.1162-1167.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Engler J. A., van Bree M. P. The nucleotide sequence and protein-coding capability of the transposable element IS5. Gene. 1981 Aug;14(3):155–163. doi: 10.1016/0378-1119(81)90111-6. [DOI] [PubMed] [Google Scholar]
  6. Kaluza K., Hahn M., Hennecke H. Repeated sequences similar to insertion elements clustered around the nif region of the Rhizobium japonicum genome. J Bacteriol. 1985 May;162(2):535–542. doi: 10.1128/jb.162.2.535-542.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Kosuge T., Heskett M. G., Wilson E. E. Microbial synthesis and degradation of indole-3-acetic acid. I. The conversion of L-tryptophan to indole-3-acetamide by an enzyme system from Pseudomonas savastanoi. J Biol Chem. 1966 Aug 25;241(16):3738–3744. [PubMed] [Google Scholar]
  8. Lichtenstein C., Brenner S. Unique insertion site of Tn7 in the E. coli chromosome. Nature. 1982 Jun 17;297(5867):601–603. doi: 10.1038/297601a0. [DOI] [PubMed] [Google Scholar]
  9. Messing J. New M13 vectors for cloning. Methods Enzymol. 1983;101:20–78. doi: 10.1016/0076-6879(83)01005-8. [DOI] [PubMed] [Google Scholar]
  10. Messing J., Vieira J. A new pair of M13 vectors for selecting either DNA strand of double-digest restriction fragments. Gene. 1982 Oct;19(3):269–276. doi: 10.1016/0378-1119(82)90016-6. [DOI] [PubMed] [Google Scholar]
  11. Rak B., von Reutern M. Insertion element IS5 contains a third gene. EMBO J. 1984 Apr;3(4):807–811. doi: 10.1002/j.1460-2075.1984.tb01889.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Schoner B., Kahn M. The nucleotide sequence of IS5 from Escherichia coli. Gene. 1981 Aug;14(3):165–174. doi: 10.1016/0378-1119(81)90112-8. [DOI] [PubMed] [Google Scholar]
  14. Schröder G., Waffenschmidt S., Weiler E. W., Schröder J. The T-region of Ti plasmids codes for an enzyme synthesizing indole-3-acetic acid. Eur J Biochem. 1984 Jan 16;138(2):387–391. doi: 10.1111/j.1432-1033.1984.tb07927.x. [DOI] [PubMed] [Google Scholar]
  15. Smith H. O. Recovery of DNA from gels. Methods Enzymol. 1980;65(1):371–380. doi: 10.1016/s0076-6879(80)65048-4. [DOI] [PubMed] [Google Scholar]
  16. Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
  17. Temin H. M. Origin of retroviruses from cellular moveable genetic elements. Cell. 1980 Oct;21(3):599–600. doi: 10.1016/0092-8674(80)90420-1. [DOI] [PubMed] [Google Scholar]
  18. Thomashow L. S., Reeves S., Thomashow M. F. Crown gall oncogenesis: evidence that a T-DNA gene from the Agrobacterium Ti plasmid pTiA6 encodes an enzyme that catalyzes synthesis of indoleacetic acid. Proc Natl Acad Sci U S A. 1984 Aug;81(16):5071–5075. doi: 10.1073/pnas.81.16.5071. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Yamada T., Palm C. J., Brooks B., Kosuge T. Nucleotide sequences of the Pseudomonas savastanoi indoleacetic acid genes show homology with Agrobacterium tumefaciens T-DNA. Proc Natl Acad Sci U S A. 1985 Oct;82(19):6522–6526. doi: 10.1073/pnas.82.19.6522. [DOI] [PMC free article] [PubMed] [Google Scholar]

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