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. 1988 May;85(9):2939–2943. doi: 10.1073/pnas.85.9.2939

Role of domain II of Pseudomonas exotoxin in the secretion of proteins into the periplasm and medium by Escherichia coli.

V K Chaudhary 1, Y H Xu 1, D FitzGerald 1, S Adhya 1, I Pastan 1
PMCID: PMC280118  PMID: 3283735

Abstract

Pseudomonas exotoxin (PE) is composed of structural domains I, II, and III; when interacting with mammalian cells the function of domain I is cell recognition, the function of domain II is membrane translocation, and domain III functions in ADP ribosylation. PE is secreted by Pseudomonas aeruginosa into its growth medium. The domain responsible for secretion has been examined by expressing modified PE genes in Escherichia coli under the control of a T7 promoter. Without a signal sequence, PE accumulates within the cell, but PE is secreted into the periplasm when part or all of domain I is removed. PE appears in the periplasm and medium when domain I and part of domain II are removed. Domain II alone is secreted into the periplasm, whereas domain III alone remains within the cell. Addition of an OmpA signal sequence results in secretion of mature PE into the periplasm and secretion of domains II-III into the medium. A protein composed of transforming growth factor alpha fused to the amino terminus of domains II-III is secreted into the periplasm without a signal sequence and into the medium with a signal sequence. A protein composed of domain(s) II or II-III fused to the amino terminus of alkaline phosphatase is secreted into the periplasm and the medium with or without a signal sequence. We conclude that domain II contains important information for protein secretion.

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Selected References

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

  1. Allured V. S., Collier R. J., Carroll S. F., McKay D. B. Structure of exotoxin A of Pseudomonas aeruginosa at 3.0-Angstrom resolution. Proc Natl Acad Sci U S A. 1986 Mar;83(5):1320–1324. doi: 10.1073/pnas.83.5.1320. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Beckwith J., Ferro-Novick S. Genetic studies on protein export in bacteria. Curr Top Microbiol Immunol. 1986;125:5–27. doi: 10.1007/978-3-642-71251-7_2. [DOI] [PubMed] [Google Scholar]
  3. Benson S. A., Hall M. N., Silhavy T. J. Genetic analysis of protein export in Escherichia coli K12. Annu Rev Biochem. 1985;54:101–134. doi: 10.1146/annurev.bi.54.070185.000533. [DOI] [PubMed] [Google Scholar]
  4. Brickman E., Beckwith J. Analysis of the regulation of Escherichia coli alkaline phosphatase synthesis using deletions and phi80 transducing phages. J Mol Biol. 1975 Aug 5;96(2):307–316. doi: 10.1016/0022-2836(75)90350-2. [DOI] [PubMed] [Google Scholar]
  5. Chaudhary V. K., FitzGerald D. J., Adhya S., Pastan I. Activity of a recombinant fusion protein between transforming growth factor type alpha and Pseudomonas toxin. Proc Natl Acad Sci U S A. 1987 Jul;84(13):4538–4542. doi: 10.1073/pnas.84.13.4538. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Douglas C. M., Guidi-Rontani C., Collier R. J. Exotoxin A of Pseudomonas aeruginosa: active, cloned toxin is secreted into the periplasmic space of Escherichia coli. J Bacteriol. 1987 Nov;169(11):4962–4966. doi: 10.1128/jb.169.11.4962-4966.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Ferenci T., Silhavy T. J. Sequence information required for protein translocation from the cytoplasm. J Bacteriol. 1987 Dec;169(12):5339–5342. doi: 10.1128/jb.169.12.5339-5342.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Ghrayeb J., Kimura H., Takahara M., Hsiung H., Masui Y., Inouye M. Secretion cloning vectors in Escherichia coli. EMBO J. 1984 Oct;3(10):2437–2442. doi: 10.1002/j.1460-2075.1984.tb02151.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Hoffman C. S., Wright A. Fusions of secreted proteins to alkaline phosphatase: an approach for studying protein secretion. Proc Natl Acad Sci U S A. 1985 Aug;82(15):5107–5111. doi: 10.1073/pnas.82.15.5107. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Hwang J., Fitzgerald D. J., Adhya S., Pastan I. Functional domains of Pseudomonas exotoxin identified by deletion analysis of the gene expressed in E. coli. Cell. 1987 Jan 16;48(1):129–136. doi: 10.1016/0092-8674(87)90363-1. [DOI] [PubMed] [Google Scholar]
  11. Inouye S., Soberon X., Franceschini T., Nakamura K., Itakura K., Inouye M. Role of positive charge on the amino-terminal region of the signal peptide in protein secretion across the membrane. Proc Natl Acad Sci U S A. 1982 Jun;79(11):3438–3441. doi: 10.1073/pnas.79.11.3438. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Kaiser C. A., Preuss D., Grisafi P., Botstein D. Many random sequences functionally replace the secretion signal sequence of yeast invertase. Science. 1987 Jan 16;235(4786):312–317. doi: 10.1126/science.3541205. [DOI] [PubMed] [Google Scholar]
  13. Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
  14. Lorberboum-Galski H., FitzGerald D., Chaudhary V., Adhya S., Pastan I. Cytotoxic activity of an interleukin 2-Pseudomonas exotoxin chimeric protein produced in Escherichia coli. Proc Natl Acad Sci U S A. 1988 Mar;85(6):1922–1926. doi: 10.1073/pnas.85.6.1922. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Michaelis S., Hunt J. F., Beckwith J. Effects of signal sequence mutations on the kinetics of alkaline phosphatase export to the periplasm in Escherichia coli. J Bacteriol. 1986 Jul;167(1):160–167. doi: 10.1128/jb.167.1.160-167.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Studier F. W., Moffatt B. A. Use of bacteriophage T7 RNA polymerase to direct selective high-level expression of cloned genes. J Mol Biol. 1986 May 5;189(1):113–130. doi: 10.1016/0022-2836(86)90385-2. [DOI] [PubMed] [Google Scholar]
  17. Vlasuk G. P., Inouye S., Ito H., Itakura K., Inouye M. Effects of the complete removal of basic amino acid residues from the signal peptide on secretion of lipoprotein in Escherichia coli. J Biol Chem. 1983 Jun 10;258(11):7141–7148. [PubMed] [Google Scholar]
  18. Watson M. E. Compilation of published signal sequences. Nucleic Acids Res. 1984 Jul 11;12(13):5145–5164. doi: 10.1093/nar/12.13.5145. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Wickner W. T., Lodish H. F. Multiple mechanisms of protein insertion into and across membranes. Science. 1985 Oct 25;230(4724):400–407. doi: 10.1126/science.4048938. [DOI] [PubMed] [Google Scholar]
  20. von Heijne G. Signal sequences. The limits of variation. J Mol Biol. 1985 Jul 5;184(1):99–105. doi: 10.1016/0022-2836(85)90046-4. [DOI] [PubMed] [Google Scholar]

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