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The Human Genome Project
Yann Christinat EPFL
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What is it? The sequencing and mapping of the entire human genome (Homo Sapiens). An international 13 years long research project . The first project to consider ethical, legal, and social issues in genomics.
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Milestones 1860 – Gregor Mendel suggests the existence of genes.
1910 – Thomas H. Morgan discovers the chromosomes. 1953 – Watson and Crick describe the double stranded DNA helix. 1975 – Methods to determine the order, or sequence, of the amino acids are developed. 1990 – The Human Genome Project is started. 2003 – The whole human genome is decoded two years ahead of schedule.
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Goals Identify the 20,000 – 25,000 genes present in the human genome.
Determine the sequence of the 3 billion base pairs in human DNA. Store this information in freely available databases. Improve tools for data analysis. Address the ethical, legal, and social issues arising in genomics.
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Discoveries on DNA The order of almost all nucleotides (99,9%) is exactly the same in all people. Less than 2% of the genome encodes proteins. 50% of the genome is composed of “Junk DNA”. Functions are unknown for over 50% of the discovered genes.
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Contributions More than 1080 disease genes have been discovered through the Human Genome Project. At least 350 biotechnology-based product are now in clinical trials. Finding a gene causing an inherited disease can be done in a few days instead of years.
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Contributions (cont’d)
More than 1,000 tests for genetic risks. HapMap: A catalog of common genetic variation in the human genome. Ethical chart developed and used as model for research in genomics.
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What’s left to do… Find out the gene mechanisms and functions.
Explain the chromosome organization. Disease-susceptibility prediction based on sequence variation. Speed up DNA sequencing and lower its price to make it publicly available.
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In Brief We have written the “Book of Human DNA” but we still need to learn how to read it.
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For more information National Institutes of Health U.S. Department of Energy
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Thanks for your attention. Questions?
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DNA Our DNA encodes the information needed to build a human being.
The DNA is a long double helix composed of nucleic acids (A-T, G-C bases). This information is grouped in 23 pairs of chromosomes each containing several genes. Genes code for proteins.
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