Difference between revisions of "Part:BBa K5293014"

Revision as of 22:26, 1 October 2024

pHREAC_eGFP_ER

This part is a component of a larger collection designed by the 2024 iGEM uOttawa team. These plasmids were developed to facilitate the screening of subcellular localizations in Nicotiana benthamiana and maximise transient expression of recombinant proteins, leveraging the plant's eukaryotic system to perform post translational modifications. All parts within this collection can safely be used in a BSL 1 laboratory to the best of our knowledge. By incorporating signal peptides, we aimed to direct proteins to specific organelles such as the chloroplast, vacuole, cytoplasm, apoplasm and endoplasmic reticulum, optimising recombinant protein accumulation and stability for efficient biomanufacturing.

The plasmids we designed provide a comprehensive, user-friendly toolkit for the plant synthetic biology community, enabling rapid and versatile screening of protein localization while improving the scalability of plant-based peptide production. Each plasmid contains carefully designed elements to maximise target protein concentrations and streamline purification processes, making them suitable for both beginners and experienced users. They were designed for and used to perform agrobacterium mediated infiltration of Nicotiana benthamiana.

Information on each of the 5 plasmids can be found here:

Endoplasmic Reticulum - BBa_K5293014

Vacuole - BBa_K5293015

Chloroplasts - BBa_K5293016

Cytoplasm - BBa_K5293017

Apoplasm - BBa_K5293018

For detailed information on the design of each plasmid, including the rationale behind specific components, please refer to the Design tab.

These plasmids were extensively tested with various inserts, primarily focusing on the expression of fusion proteins such as His-mScarlet-TEV-Semaglutide (BBa_K5293006) and His-Semaglutide (BBa_K5293005) for the biomanufacturing of GLP-1 Agonists. Notably, the plasmid targeting the chloroplasts (BBa_K5293016) yielded the highest protein expression levels, which is why our results page contains the most information on this plasmid. Our experiences with this plasmid, as well as the others, are thoroughly documented in the Experience tab.

We designed these plasmids using Benchling for easy DNA synthesis, enabling any iGEM team to quickly begin experimentation. To use these plasmids, simply order your CDS of interest as a gene block and assemble it using Gibson Assembly. We recommend ordering the entire plasmid with mCherry (BBa_K5293011) inside the SapI restsriction sites. The Lac promoter was used as its leaky nature allows unsuccessful colonies to express mCherry and successful transformations can be easily delected by the absence of mCherry expression.

Sequence and Features