Tuberculosis (TB) |
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| is one of the most
long-standing epidemics of humanity. Despite all advances in medicine
since the discovery of the mycobacterium tuberculosis pathogen by Robert
Koch 120 years ago TB remains one of the most wide spread lethal bacterial
diseases. According to estimates by the World
Health Organisation (WHO), about one third or the earth's
population is infected with MTB. Each year, there are about eight million
new cases, and more than two million people per annum die from tuberculosis.
Tuberculosis is becoming an increasing threat even in developed parts
of the world because of a number of developments during the most recent
decades. • About 15 % of HIV-infected patients die from secondary infections by MTB. • Drug-resistant MTB strains have emerged mostly because of deficient • performance of TB programs. • The increasing global mobility of the human population supports the • rapid spreading of different MTB strains, including drug-resistant strains. This situation has led to a renewed interest into MTB research. Since 1972, only one new drug (Rifapentine®) has been developed and introduced on the market in 1998. To stop this trend, several initiatives have been supported by the WHO and other organisations, to support new avenues of drug development by the pharmaceutical industry, such as the Global Alliance for TB Drug Development. |
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XMTB Structural Proteomics Consortium |
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The approach of the XMTB
Structural Proteomics Consortium is based on the knowledge of
the complete
genome of Mycobacterium tuberculosis. It integrates a range
of proteomics-oriented key technologies in the area of bioinformatics,
screening of large ligands libraries, structural biology methods such
as X-ray crystallography and NMR-spectroscopy, and proteomics based in
vivo screening methods. We are aiming to determine 35 molecular structures
of selected XMTB target proteins and 70 target – small molecular
weight ligand. Five of these target proteins will be selected for the
development of potential drugs. Within the R&D part of the project, we are aiming to develop complementary structure-based high-throughput technologies using NMR spectroscopy and X-ray crystallography. While NMR is used to structurally map ligand binding sites on the selected targets, X-ray crystallography is applied for the determination of the target-ligand complex structures. Using these data, identified ligands are further investigated with the aim to directed drug discovery. The process is carried out by the combined application of structural proteomics methods and in vivo screens. To ensure the highest efficiency of this integrated approach a number of techniques and tools will be developed. A major focus is on the implementation of a large scale high-throughput crystallisation facility in Hamburg. |
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The
XMTB consortium consists of three regional competence centres. |
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Hamburg |
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The Hamburg
competence centre is presented by the Hamburg-Unit
of the European Molecular Biology Laboratory (EMBL), the
Max-Planck
Groups for Structural Molecular Biology (MPG-ASMB) and the
enterprise MarResearch
GmbH. EMBL and MPG-ASMB are situated on campus of the German
Electron Synchrotron (DESY) and are operating experimental
stations for applications in life sciences using synchrotron radiation.
MarResearch is one of the world-leading producers of detectors and other
equipment for applications in X-ray crystallography. The company develops
and implements a system to automatically mount samples on a local experimental
station for X-ray structural analysis. |
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Berlin |
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The Berlin competence
centre consists of the Max-Planck
Institute for Infection Biology (MPI-IB), the Research
Institute for Molecular Pharmacology (FMP) jointly with the
company Combinature
Biopharm AG. The MPI-IB is a leading centre in TB research,
particularly in terms of a detailed proteome analysis of MTB, with the
aim to develop novel vaccines. It cooperates with the EU-consortium TB-Vaccine.
The FMP is situated on the campus of the Max-Dellbrück-Center
in Berlin-Buch. It provides a leading infrastructure for high-throughput
applications by NMR spectroscopy. The enterprise Combinature Biopharm
AG develops and applies methods for screening of low molecular weight
ligands with the aim to discover lead compounds for drug development. |
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Munich |
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The focus
of the Munich competence centre is on bioinformatics
and is presented by the Technical
University Munich, Research Centre Weihenstefan (TUM-RCW),
and by the company Biomax
Informatics. TUM-RCW has been involved in the development
and implementation and of databases and methods for the computer-based
analysis of genomic and proteomic data. The focus of Biomax
Informatics is on genome analysis and data integration, using
in-house software developments. |
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