Team:Groningen/Parts/Used Parts

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Used Parts

  • To get to the partsregistry site of a particular part one can click on the name of the part.
  • To see what our main findings were (no details or derivations) regarding a particular part one can click on more information.

Miscellaneous

RBS ((Elowitz 1999) -- defines RBS efficiency)

iGEM Groningen 2009

The ligation of part behind the RBS was successful, confirmed by gel (correct vector size after digestion with EcoRI and PstI) and sequencing with VF2 primer. We used this part in combination with several biobricks for building our constructs e.g. .

Double terminator (B0012-B0011)

iGEM Groningen 2009

The plasmid containing part was successfully transformed into E. coli TOP10 cells (confirmed by single and double digestion). The original plan was to use the terminator behind one of our own designed parts , and in front of pArsR-RFP. The MBP-ArsR fusion protein was thought to have a regulating effect on the arsenic promotor pArsR in the same way as ArsR regulates the promotor. The terminator separated the two parts on the plasmid. The construct was not used due to time constraints, and not sequenced.

GVP Gas Vesicle Proteins

iGEM Groningen 2009

Part was one of our main focus points during our project. The part was originally submitted by Melbourne in 2007 with a very limited amount of information (short description and sequence mutations). On their site it was mentioned the cluster was difficult to use and ligation into a plasmid was hard, in contrast we found the cluster to be easily cut and ligated into different plasmids and behind several promotors. We used this part in combination with several biobricks for building our constructs e.g. and . Pictures of our cells with induced gas vesicle formation confirmed the production of vesicles in the expected shape and size. In addition, we characterized the part to improve the use in the future and added a lot of information on the registry.

ccdB cell death gene

iGEM Groningen 2009

P1010 is used when putting BioBrick parts into BioBrick plasmids. The part to be inserted and the plasmid are cut with BioBrick enzymes and mixed. The mixture will include both the original uncut or self ligated plasmid and the desired structure. However, because of CcdB, all of the cells containing the original plasmid die and the surviving colonies are the desired result. The ccdB cell death gene worked as expected killing our E. coli TOP10 cells, and keeping our E. coli DB3 cells alive. After noticing the inconsistent sequencing result for the pSB2K3 plasmid with ccdB cell death gene, we decided to choose a different pSB2K3 plasmid with random part to continue with our assemblies. This to minimize the chance of unwanted surprises in the end.

Promotors

Constitutive promoter family member (high expression)
pHigh is a high consituative promotor. It consists of about 35 base pairs. It has been placed in the following vectors. , and

Constitutive promoter family member (high expression, reference)
pHigh is a high consituative promotor. It consists of about 35 base pairs. It has been placed in the following vectors. , and

Constitutive promoter family member (medium expression)
pMed is a medium consituative promotor. It consists of about 35 base pairs. It has been placed in the following vectors. , and

Constitutive promoter family member (low expression)
pLow is a Low consituative promotor. It consists of about 35 base pairs. It has been placed in the following vectors. , and

Promoter (lacI regulated)
This part is an inverting regulator sensitive to LacI and CAP. It contains two protein binding sites. The first binds the CAP protein, which is generally present in E.coli and is asocciated with cell health and availability of glucose. The second binds LacI protein.

pBad/araC
This part is

Vectors

High copy BioBrick assembly plasmid

iGEM Groningen 2009

pSB1AC3 is a high copy number plasmid carrying ampicillin and chloramphenicol resistance. Together with pSB1A2 the vector was used for most assemblies of our team, because the high copy number made it easy to work with and easy isolation. The transformations with pSB1AC3 (containing different biobricks of own design) into E. coli TOP10 cells, growth on both antibiotics, and gel analysis (undigested and digested with the EcoRI and PstI) worked as expected. The high (copy) number of plasmids per cell make it an easy to work with plasmid, ideal for cloning and assembly work.

pSB1A2 (Replaced by pSB1A3 in registry)
pSB1A2 is a high copy number plasmid carrying ampicillin resistance. Together with pSB1AC3 the vector was used for most assemblies of our team, because the high copy number made it easy to work with and easy isolation.

A low copy number base vector
A low copy number base vector which as a resistance against Kanamycin

A low copy number base vector
A low copy number base vector which as a resistance against Kanamycin

A normal base vector
A normal base vector which has a resistance against Ampicillin

Vector we get with GVP
It's the backbone of our GVP part is and it a resistance against Ampicillin/Gentamycin