Team:Duke/Safety/Ecoli and Scerevisiae
From 2013.igem.org
1. Please describe the chassis organism(s) you will be using for this project. If
you will be using more than one chassis organism, provide information on
each of them:
• Species: E. Coli (K12) and Saccharomyces Cerevisiae
• DH5 alpha and DBY12397
• Risk Group: 1
2. Highest Risk Group Listed: Risk Group 1
3. List and describe all new or modified coding regions you will be using in your
project.
• TEF1pr-synthetic binding site-YFP
• Z4EVpr-iTAL-mCherry
• Z4EVpr-dCas9
• SNR52pr-gRNA-synthetic binding sequence
o Source: Buchler Lab and PCR of oligos from IDT
o Risk Group 1
o Botstein Lab and Addgene
o Risk Group 2 due to iTAL origin in Xanthomonas
o Botstein and Gersbach Labs
o Risk Group 1
o Gersbach Lab and PCR of oligos from IDT
o Risk Group 1
4. Do the biological materials using in your lab work pose any of the following
risks?
1. Risks to the safety and health of team members or others working in
2. Risks to the safety and health of the general public, if released by
3. Risks to the environment, if released by design or by accident?
4. Risks to security through malicious misuse by individuals, groups, or
the lab?
• No. Our E. coli strain is not virulent and the yeast pose no threat to
humans. The iTALs are derived from Xanthomonas bacteria, but
we did not ever use them as a chassis.
design or by accident?
• No. We are simply aiming to make synthetic gene circuits in yeast
using fluorescent reporters. The already non-virulent E. coli and
yeast are not being programmed to make anything that would
make them virulent or toxic.
• No. In the event of exposure of our yeast or E. coli to the
environment, there would be no effect.
countries?
• No. We are unable to foresee any malicious misuse of our yeast or
E. coli.
5. If your project moved from a small-scale lab study to become widely used
as a commercial/industrial product, what new risks might arise? Also, what
risks might arise if the knowledge you generate or the methods you develop
became widely available?
• Since the expression of the genes of interest is very tunable in
our system, there should be very little problems using one of the
gene circuits in a commercial/industrial manner. If a gene used
in one of these circuits were dangerous if over-expressed. Beta
estradiol could be used to control for this. The entire purpose of
these tunable gene circuits is to give control of the system to the
scientist not the system itself.
6. Does your project include any design features to address safety risks?
• As discussed previously, the tunable expression of our promoters
is a design feature of the project that addresses safety risks. All of
the chassis we use are also auxotrophic.
7. What safety training have you received?
• All iGEM team members completed Duke’s General Laboratory
Safety, Chemical Safety, and Fire/Life Safety training before
beginning any lab work
• Information can be found at safety.duke.edu
8. Under what biosafety provisions will/do you work?
a. Please provide a link to your institution biosafety guidelines.
b. Does your institution have an Institutional Biosafety Committee, or an
c. Does your country have national biosafety regulations or guidelines?
d. According to the WHO Biosafety Manuel, what is the BioSafety Level
e. What is the Risk Group of your chassis organism(s), as you stated in
• www.safety.duke.edu/BioSafety
equivalent group? If yes, have you discussed your project with them?
Describe any concerns they raised with your project, and any changes
you made to your project plan based on their review.
• Yes and our project met their standards for safety
If so, please provide a link to these regulations or guidelines if
possible.
• www.cdc.gov/biosafety
rating of your lab?
• Our lab has a BioSafety Level rating of 2 due to its ability to handle
mammalian cell cultures.
question 1? If it does not match the BSL rating of your laboratory,
please explain what additional safety measures you are taking.
• Risk Group 1 and it is below the safety rating of our lab. There is
no need for additional safety measures.