Team:HokkaidoU Japan/Project/Test

From 2010.igem.org

Revision as of 18:10, 26 October 2010 by Sprkata (Talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Type III Secretion System

What

   Type III Secretion Apparatus is a syringe-like organelle which can inject a whole protein molecule from a bacterial cell to a target eukaryotic cell. This apparatus is one of the members of Type III Secretion System (T3SS), which is essential for the pathogenicity of many pathogenic bacteria such as Salmonella and Yersinia.


Why

   Currently, methods to introduce proteins directly into cells are complicated, although there are several entrenched transfection methods to introduce nucleic acid into cells. Moreover, introduction of DNA changes cell genetic makeup permanently, but introduction of proteins chage the cell state temporary and afterwards the injected protein will be degraded leaving no permanent information in the target cell. In this regard, introduction of RNA ~

   In nature Type III Secretion Apparatus is used to secrete proteins that help the bacteria infect eukaryotic organisms however, this tecnology has huge potential. For example, the bacteria which can inject Yamanaka factors will be iPS cells generator E. coli.

How

References

  1. Chen LM, Briones G, Donis RO, Galán JE. 2006. Optimization of the delivery of heterologous proteins by the Salmonella enterica serovar Typhimurium type III secretion system for vaccine development. Infect Immun. Vol.74:5826-5833. [http://www.ncbi.nlm.nih.gov/pubmed/16988261 PubMed]
  2. Galán JE, Wolf-Watz H. 2006. Protein delivery into eukaryotic cells by type III secretion machines. Nature. Vol.444:567-573. Review. [http://www.ncbi.nlm.nih.gov/pubmed/17136086 PubMed]
  3. Hansen-Wester I, Chakravortty D, Hensel M. 2004. Functional transfer of Salmonella pathogenicity island 2 to Salmonella bongori and Escherichia coli. Infect Immun. Vol.72:2879-2888. [http://www.ncbi.nlm.nih.gov/pubmed/15102800 PubMed]
  4. Jacobi CA, Roggenkamp A, Rakin A, Zumbihl R, Leitritz L, Heesemann J. 1998. In vitro and in vivo expression studies of yopE from Yersinia enterocolitica using the gfp reporter gene. Mol Microbiol. Vol.30:865-882. [http://www.ncbi.nlm.nih.gov/pubmed/10094634 PubMed]
  5. Miao EA, Miller SI. 2000. A conserved amino acid sequence directing intracellular type III secretion by Salmonella typhimurium. Proc Natl Acad Sci U S A. Vol.97:7539-7544. [http://www.ncbi.nlm.nih.gov/pubmed/10861017 PubMed]
  6. Rappl C, Deiwick J, Hensel M. 2003. Acidic pH is required for the functional assembly of the type III secretion system encoded by Salmonella pathogenicity island 2. FEMS Microbiol Lett. Vol.226:363-372. [http://www.ncbi.nlm.nih.gov/pubmed/14553934 PubMed]
  7. Waterman SR, Holden DW. 2003. Functions and effectors of the Salmonella pathogenicity island 2 type III secretion system. Cell Microbiol. Vol.5:501-511. Review. [http://www.ncbi.nlm.nih.gov/pubmed/12864810 PubMed]
  8. Wilson JW, Coleman C, Nickerson CA. 2007. Cloning and transfer of the Salmonella pathogenicity island 2 type III secretion system for studies of a range of gram-negative genera. Appl Environ Microbiol. Vol.73:5911-5918. [http://www.ncbi.nlm.nih.gov/pubmed/17675443 PubMed]
  9. Yu XJ, McGourty K, Liu M, Unsworth KE, Holden DW. 2010. pH sensing by intracellular Salmonella induces effector translocation. Science. Vol.328:1040-1043. [http://www.ncbi.nlm.nih.gov/pubmed/20395475 PubMed]
  10. Yu XJ, Liu M, Holden DW. 2004. SsaM and SpiC interact and regulate secretion of Salmonella pathogenicity island 2 type III secretion system effectors and translocators. Mol Microbiol. Vol.54:604-619. [http://www.ncbi.nlm.nih.gov/pubmed/15491354 PubMed]
Retrieved from "http://2010.igem.org/Team:HokkaidoU_Japan/Project/Test"