Difference between revisions of "Part:BBa K936013"
 
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pelB leader sequence attached to enzyme LC-Cutinase protein coding sequence in order to allow the cell to bring the enzyme to the periplasm for easier secretion.  
 
pelB leader sequence attached to enzyme LC-Cutinase protein coding sequence in order to allow the cell to bring the enzyme to the periplasm for easier secretion.  
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https://static.igem.org/mediawiki/2012/a/aa/UC_Davis_First_pNPB_Run.png <br>(Above Graph) Results of pNPB assay detailing the constitutive construct as having the highest esterase activity.https://static.igem.org/mediawiki/2012/6/62/UC_Davis_Third_pNPB_Run.png<br>(Above Graphs) The graphs above detail higher activity among the constitutive construct and some mutant variants in esterase activity compared to the control and wild type per unit cell. <br>https://static.igem.org/mediawiki/2012/5/59/UC_Davis_Last_pNPB_Run.png<br> (Above graph) This graph represents a possible production of cutinase by the cells upon entering stationary phase.<br><br>
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Through p-nitrophenyl butyrate (pNPB) assays, the UC Davis team gathered enough data to determine that the LC-Cutinase part (BBa_K936000) incorporated in this part most likely exhibits its intended function as an esterase. Additionally, the Cutinase part with a pelB tag (BBa_K936013) has been found to be secreted from the cells expressing it. A detailed description of these assays can be found on the Module Engineering Project page: http://2012.igem.org/Team:UC_Davis/Project/Catalyst.  
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https://static.igem.org/mediawiki/2012/d/d9/UCDavisParts2.png
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Western data of media samples probed for a his-tag shows that a protein of the length corresponding to cutinase (~30 kDa) is being secreted from the cell.
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https://static.igem.org/mediawiki/2012/c/c4/UCDavisParts1.png
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Quantitative measure of protein secretion into the media at different points after induction.
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https://static.igem.org/mediawiki/2012/0/0b/UCDavisParts3.png https://static.igem.org/mediawiki/2012/6/63/UCDavisParts4.png https://static.igem.org/mediawiki/2012/2/28/UCDavisParts5.png
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The above plots show the results on pNPB assays in which esterase activity is measured by the absorbance at 405 nm. It is clearly shown that the activity of cells expressing cutinase is much higher the background (negative control).
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===Usage and Biology===
 
===Usage and Biology===
  
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===Functional Parameters===
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==Functional Parameters: Austin_UTexas==
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<partinfo>BBa_K936013 parameters</partinfo>
 
<partinfo>BBa_K936013 parameters</partinfo>
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<h3><center>Burden Imposed by this Part:</center></h3>
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<center><img src = "https://static.igem.org/mediawiki/parts/f/fa/T--Austin_Utexas--no_burden_icon.png" style = "width:160px;height:120px"></center>
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<figcaption><center><b>Burden Value: -0.8 ± 2.2% </b></center></figcaption>
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<p> Burden is the percent reduction in the growth rate of <i>E. coli</i> cells transformed with a plasmid containing this BioBrick (± values are 95% confidence limits). This BioBrick did not exhibit a burden that was significantly greater than zero (i.e., it appears to have little to no impact on growth). Therefore, users can depend on this part to remain stable for many bacterial cell divisions and in large culture volumes. Refer to any one of the
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<a href="https://parts.igem.org/Part:BBa_K3174002">BBa_K3174002</a> - <a href="https://parts.igem.org/Part:BBa_K3174007">BBa_K3174007</a> pages for more information on the methods, an explanation of the sources of burden,  and other conclusions from a large-scale measurement project conducted by the <a href="http://2019.igem.org/Team:Austin_UTexas">2019 Austin_UTexas team</a>.</p>
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<p>This functional parameter was added by the <a href="https://2020.igem.org/Team:Austin_UTexas/Contribution">2020 Austin_UTexas team.</a></p>
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Latest revision as of 03:35, 25 August 2020

pelB-LC-Cutinase fusion protein

pelB leader sequence attached to enzyme LC-Cutinase protein coding sequence in order to allow the cell to bring the enzyme to the periplasm for easier secretion.

Through p-nitrophenyl butyrate (pNPB) assays, the UC Davis team gathered enough data to determine that the LC-Cutinase part (BBa_K936000) incorporated in this part most likely exhibits its intended function as an esterase. Additionally, the Cutinase part with a pelB tag (BBa_K936013) has been found to be secreted from the cells expressing it. A detailed description of these assays can be found on the Module Engineering Project page: http://2012.igem.org/Team:UC_Davis/Project/Catalyst.

UCDavisParts2.png
Western data of media samples probed for a his-tag shows that a protein of the length corresponding to cutinase (~30 kDa) is being secreted from the cell.

UCDavisParts1.png
Quantitative measure of protein secretion into the media at different points after induction.

UCDavisParts3.png UCDavisParts4.png UCDavisParts5.png
The above plots show the results on pNPB assays in which esterase activity is measured by the absorbance at 405 nm. It is clearly shown that the activity of cells expressing cutinase is much higher the background (negative control).


Usage and Biology

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 54
    Illegal AgeI site found at 666
  • 1000
    COMPATIBLE WITH RFC[1000]


Functional Parameters: Austin_UTexas

BBa_K936013 parameters

Burden Imposed by this Part:

Burden Value: -0.8 ± 2.2%

Burden is the percent reduction in the growth rate of E. coli cells transformed with a plasmid containing this BioBrick (± values are 95% confidence limits). This BioBrick did not exhibit a burden that was significantly greater than zero (i.e., it appears to have little to no impact on growth). Therefore, users can depend on this part to remain stable for many bacterial cell divisions and in large culture volumes. Refer to any one of the BBa_K3174002 - BBa_K3174007 pages for more information on the methods, an explanation of the sources of burden, and other conclusions from a large-scale measurement project conducted by the 2019 Austin_UTexas team.

This functional parameter was added by the 2020 Austin_UTexas team.