Coding

Part:BBa_K3468011

Designed by: Yufei Zhou   Group: iGEM20_TJUSLS_China   (2020-10-17)


PETase Q182F

The PETase is an enzyme, which can hydrolyze PET and this mutation protein is changed on the basis of the PETase. This protein is changed from Q to F at 182 position which can be more stable in higher temperature compared with the wild type.

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
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]

Hydrophobic interaction is the main driver of protein folding. The phenomenon of hydrophobic groups gathering close to each other to avoid water is called hydrophobic interaction. The protein is stable in water when the hydrophobic side chains of the protein aggregate inside the protein, rather than being solvated by water. Hydrophobic interactions play a major role in maintaining protein conformation because water molecules interact more strongly with each other than with other nonpolar molecules. Nonpolar side chains gather inside protein molecules to avoid water. At the same time, most polar side chains maintain contact with water on the surface of the protein. The hydrophobic properties within the molecule not only explain the accumulation of hydrophobic residues, but also explain the stability of the spiral and fold plates. This mutant has offset aroma effect with F201, enhances the force between residues and stabilizes protein.

The thermal stability improvement result of 0.841143 was obtained by INPS website evaluation, the improvement result of 0.08 was obtained by I-Mutant website evaluation, but the thermal stability decrease result of 6.35841 was obtained by FoldX evaluation.

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