Objective
Metallothioneins (MTs) are low-molecular-weight metalloproteins (MPs) with high cysteine (Cys) content. They are involved in a wide range of biochemical processes. In human MT-1 and MT-2 isoforms are found in all organs, whereas MT-3 is expressed mainly in the brain. Human exposure to organotin compounds (OTs) stems from their use as polyvinyl chloride heat stabilizers and as marine biocides. Certain OTs have already been detected in blood, liver or urine samples from individuals. Acute exposures can result in either neurotoxicity or immunotoxicity depending on the specific compound involved. Recently, attention has been focused on the biological chemistry of OTs. It has been shown, that Cys is one of the primary biological ligands for OTs. Regarding to its high Cys content, it is likely that main target of OTs in brain cells is MT-3.
The objective of this project is to study the interaction of human MT-3 towards four neuro- and immunotoxic OTs detected in drinking water and in biological samples from human b ody. The conditions of the over-expression, purification and the conversion to an air-stable derivative of recombinant MT-3 will be optimised first. Incorporation of OTs into MTs, composition of the resulting new MP(s) will be studied by electrospray ionisation mass spectrometry (ESI MS), inductively coupled plasma atom emission spectrometry (ICP AES), circular dicroism (CD) and ultraviolet-visible (UV-Vis) spectrophotometry. The incorporation of OTs into Zn-MT-3 under physiological conditions will also be studied. Finally, the inductive effect of OTs on the over-expression of MT-3 will be monitored as a control.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences biochemistry
- engineering and technology environmental engineering water treatment processes drinking water treatment processes
- natural sciences chemical sciences analytical chemistry mass spectrometry
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2004-MOBILITY-11
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
SZEGED
Hungary
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