Part:BBa_K4221008
mPETase-GSlinker-BslA(42-181aa)
Sequence and Features
- 10INCOMPATIBLE WITH RFC[10]Illegal PstI site found at 783
- 12INCOMPATIBLE WITH RFC[12]Illegal PstI site found at 783
- 21COMPATIBLE WITH RFC[21]
- 23INCOMPATIBLE WITH RFC[23]Illegal PstI site found at 783
- 25INCOMPATIBLE WITH RFC[25]Illegal PstI site found at 783
Illegal NgoMIV site found at 58
Illegal NgoMIV site found at 112
Illegal NgoMIV site found at 139 - 1000COMPATIBLE WITH RFC[1000]
Usage
PET hydrolase (PETase), which hydrolyzes polyethylene terephthalate (PET) into soluble building blocks, provides an attractive avenue for the bioconversion of plastics. mPETase is a complicated mutation of PETase.Our team used the amphiphilicity of BslA to enhance PET degrading efficiency of degrading enzyme mPETase.
Biology
PETase is a plastic degrading enzyme derived from Ideonella sakaiensis, mPETase is a complicated mutation of PETase, which contains 11 mutation sites: S214H-I168R-W159H-S188Q-R280A-A180I-G165A-Q119Y-L117F-T140D-S121E.
BslA is a structurally defined bacterial hydrophobin that was found in the biofilm of Bacillus subtilis. It helps the assembling of TasA (an exopolysaccharide and an amyloid fiber-forming protein), the component of the biofilm matrix. BslA is composed of an Ig-type fold with the addition of an unusual, extremely hydrophobic “cap” region. The central hydrophobic residues of the cap are essential to allow a hydrophobic, nonwetting biofilm to form as they control the surface activity of the BslA protein.[1]
Design Consideration
The construct was cloned into a pET28a plasmid and transformed into BL21 (DE3) E. coli.
References
[1]: “BslA is a self-assembling bacterial hydrophobin that coats the Bacillus subtilis biofilm.” Proceedings of the National Academy of Sciences of the United States of America vol. 110,33 (2013): 13600-5. doi:10.1073/pnas.1306390110
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