Part:BBa_K1921015

INPNC

Sequence and Features

Assembly Compatibility:

• 10
  COMPATIBLE WITH RFC[10]
• 12
  COMPATIBLE WITH RFC[12]
• 21
  COMPATIBLE WITH RFC[21]
• 23
  COMPATIBLE WITH RFC[23]
• 25
  INCOMPATIBLE WITH RFC[25]

  Illegal NgoMIV site found at 72
  Illegal NgoMIV site found at 405
  
• 1000
  COMPATIBLE WITH RFC[1000]

Usage

This part is the fusion of N-terminal and C-terminal domain of the ice nucleation protein. Here we established an approach to display PETase on the surface of Escherichia coli (E. coli) using N-terminal and C-terminal of ice nucleation protein as anchoring motif. Bacteria cell surface display means we fix the enzyme onto the out membrane of E.coli. According to the immobilization the enzyme are capable to stay at a proper orientation so that they get more possibilities to combine with the PET. Because the highly hydrophilic C-terminal of INP can combine with the out membrane, the display of our passenger protein, PETase, are allowed to be more stable.Besides, our method solve the problem of the degradation PETase. The enzyme will be stable in the cell surface display system.

Biology

Surface expression of recombinant proteins was first described more than 30 years ago.INP is an OMP that is found in several plant pathogenic bacteria. Our inaK is from Pseudomonas. INP has several unique structural and functional features that make it highly suitable for use in a bacterial surface display system. The specific amino acids of the N-terminal domain are relatively hydrophobic and link the protein to the OM via a glycosylphosphatidylinositol anchor. The C-terminal domain of the protein is highly hydrophilic and exposed to the medium. The central part of INP comprises a series of repeating domains that act as templates for ice crystal formation.

Reference

[1] Shosuke, Yoshida, 1, 2*, Kazumi, Hiraga, 1, Toshihiko, Takehana, 3, Ikuo, Taniguchi, 4, Hironao, Yamaji, 1, Yasuhito, Maeda, 5, Kiyotsuna, Toyohara, 5, Kenji, Miyamoto, 2†, Yoshiharu, Kimura, 4, Kohei, Oda1. A bacterium that degrades and assimilates poly(ethylene terephthalate)[J]. SCIENCE, 2016: 1196-1199 [2]Edwin, van, Bloois1, Remko, T, Winter1, Harald, Kolmar2, and, Marco, W, Fraaije. Decorating microbes: surface display of proteins on Escherichia coli[J]. CELL Press, 2011, 29(2): 79-86

Additional supplements

The data below is updated by TJU_China of iGEM 2017.