Author(s)
P. Gross & T. Oelgeschläger
Abstract
Chapter 4
The Human Genome Project
P. Gross & T. Oelgeschläger
Eukaryotic Gene Regulation Laboratory, Marie Curie Research Institute, UK.
Abstract
The Human Genome Project, the most ambitious biological research project to date, was inaugurated
in the 1980s with the aim to decipher the precise DNAsequence of the entire human genetic
material and culminated in the publication of two human genome sequence drafts in February
2001. These drafts represent a major milestone in biological research as they provide the first
panoramic view of the genomic landscape of a vertebrate. Among the results of the sequencing
efforts was the surprising finding that only 1.4% of the human DNA encodes instructions for the
assembly of proteins. The estimated total number of just over 30,000 human protein-coding genes
is insufficient to explain human complexity compared to other organisms simply on the basis of
gene number. Additional levels of complexity must exist, both in the coordinated temporal and
spatial read-out of genetic information and in the functional interplay of expressed gene products.
This insight has ushered in functional genomics, the genome-wide analysis of cell-specific gene
expression patterns and protein interaction networks. The human genome sequence project has
led to the emergence of novel technologies that are expected to promote research into virtually all
aspects of life science. Medical sciences are expected to benefit in particular, as the availability
of human genome sequence information has paved the way for the development of novel diagnostics
and advanced therapeutics. These may ultimately provide the means for the prevention
and targeted treatment of complex genetic disorders such as cancer.
1 Introduction
1.1 Genes
The elucidation of the precise mechanisms underlying heredity, the accurate transfer of biological
information from one generation to the next, has been a key problem in biological sciences over
several centuries. Gregor Mendel, an Austrian monk, concluded in 1865 from genetic crossing
experiments that hereditary information is passed from parents to offspring in discrete packets [1].
Later on, these units of heredity were called genes. The biological nature of genes was not revealed
until 1944, when it was demonstrated that genetic information is carried by a biological substance
Keywords
Related Book
Other papers in this volume
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