Team:Bielefeld-Germany

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Revision as of 08:50, 17 October 2012

  • Our Plan
    TOXIC COMPOUNDS IN NATURAL WATER - A CASE FOR LACCASE
    The goal is to develop a biological filter using immobilized laccases to purify municipal and industrial wastewater from synthetic estrogens and other aromatic compounds.

    Click here to read more about our project

  • The Realization
    To realize our plans we first produce the laccases in the different clades and purify them. After this we immobilized and tested their acitivity.

    Click here to read more about our methodes...

  • The Potential
    While working with two different clarification plants we confirmed that our project has the opportunity to solve problems with micro contaminations.

    Click here to read more about the usage in a clarification plants and micro conterminations...

  • Laccases - Our Teammate
    Laccases have the ability to oxidize phenolic and nonphenolic lignin related compounds as well as highly recalcitrant environmental pollutants. This makes them very useful for applications concerning several biotechnological processes.

    Click here to read more about laccases...

Welcome

The birth control pill is a widespread contraception method. However, large amounts of these modified estrogens leave the body again in urine. The conventional methods in sewage treatment plants are unable to treat waste water sufficiently because the most frequently used estrogen ethinyl estradiol is very difficult to break down. As a result, the hormone finds its way into rivers and lakes and accumulates in drinking water with serious consequences for fish and other aquatic life. These range from reproductive and severe developmental disorders to the formation of female sexual characteristics in males. The long-term consequences of increasing estrogen pollution for human beings are still largely unknown. Nonetheless, declining sperm counts and thereby increasing infertility in men living in industrial nations may well relate to this hormonal pollution. In addition, testicular and prostate cancers as well as osteoporosis could be a consequence of overly high concentrations of estrogen in the human body.

The goal of Bielefeld’s iGEM team is to develop a biological filter using immobilized laccases to purify municipal and industrial wastewater from synthetic estrogens and other aromatic compounds. Laccases are copper-containing oxidase enzymes found in many organisms, and one of their properties is the ability to break down a wide range of aromatic and phenolic compounds. For this purpose, genes of various bacterial and eukaryotic laccases should be isolated and expressed in Escherichia coli and Pichia pastoris. The team is aiming to manufacture this enzyme economically and safely with the help of methods from synthetic biology. It should also be possible to extend the concept to other, in part poisonous and carcinogenic pollutants in drinking and waste water, as well as into industrial application, such as in paper and textile industries or even for bioremediation of contaminated soil.

A Case for Laccase!
iGEM Team Bielefeld 2012
Achievements

Bielefeld-Germany2012 Check.jpg
Creation of a database to organize our samples.

Bielefeld-Germany2012 Check.jpg
Production of an active E. coli Laccase.

Bielefeld-Germany2012 Check.jpg
Production of an active B. pumilus Laccase.

Bielefeld-Germany2012 Check.jpg
Production of an active T. thermophilus Laccase.

Bielefeld-Germany2012 Check.jpg
Production of an active B. halodurans Laccase.

Bielefeld-Germany2012 Check.jpg
Successful characterization of the activity of B. pumilus Laccase regarding the oxidization of ABTS under different conditions.

Bielefeld-Germany2012 Check.jpg
Successful characterization of the activity of E. coli Laccase regarding the oxidization of ABTS under different conditions.

Bielefeld-Germany2012 Check.jpg
Successful measurements of enzyme activity of T. thermophilus Laccase.

Bielefeld-Germany2012 Check.jpg
Successful measurements of enzyme activity of B. halodurans Laccase.

Bielefeld-Germany2012 Check.jpg
Successful immobilization of Trametes versicolor-Laccase (named TVEL0) and measurement of its activity.

Bielefeld-Germany2012 Check.jpg
Feasability study of our project.

Bielefeld-Germany2012 Check.jpg
Successful immobilization of E. coli BL21-Laccase (CueO named ECOL) and measurement of its activity.

Bielefeld-Germany2012 Check.jpg
Successful immobilization of Bacillus pumilus DSM 27-Laccase (CotA named BPUL) and measurement of its activity.

Bielefeld-Germany2012 Check.jpg
Improved a BioBrick by clarifying its true function.

Bielefeld-Germany2012 Check.jpg
Successful creation of a modell which simulates the oxidation of ABTS.

Our Partners

120px Logo merck.jpg BioCircle.JPG Bielefeld2012 Evonik.jpg Bielefeld2012 Baxter.png
Logo knauer.jpg Logo iit.jpg Logo biometra.jpg Bielefeld2012 BIEKUBA.jpg Bielefeld2012 Logo ERASynbio.jpg
Logo bio-nrw.png Bielefeld-Germany-CeBiTec.jpg IgemBielefeld 2011 Logo uni.jpg IgemBielefeld Logo biofak.jpg 100px