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Hi-C: A Method to Study the Three-dimensional Architecture of Genomes.
Published on: May 7, 2010
The DNA sequence, annotation and analysis of human chromosome 3
Donna M Muzny1, Steven E Scherer, Rajinder Kaul
1Human Genome Sequencing Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA.
Nature
|April 28, 2006
Summary
Researchers sequenced and analyzed human chromosome 3, revealing its unique structure and low duplication rate. This work provides insights into cancer-related genes and evolutionary history, including a significant pericentric inversion.
Area of Science:
- Genomics
- Human Genetics
- Comparative Genomics
Background:
- The International Human Genome Sequencing Consortium is completing the annotation of all human chromosomes.
- Human chromosome 3 is one of the largest and most complex chromosomes in the human genome.
Purpose of the Study:
- To describe the sequencing and analysis of human chromosome 3.
- To characterize gene clusters and loci associated with human cancers.
- To investigate the evolutionary history of a pericentric inversion on chromosome 3.
Main Methods:
- Whole genome sequencing and sequence finishing.
- Comparative genomic analysis using sequences from chimpanzee and rhesus macaque.
- Identification and characterization of gene clusters, segmental duplications, and fragile sites.
Main Results:
- Chromosome 3 comprises four contigs, including the longest known stretch of finished DNA sequence.
- The chromosome exhibits the lowest rate of segmental duplication in the human genome.
- Identified a chemokine receptor gene cluster and cancer-associated loci, including the FHIT gene and FRA3B fragile site.
- Characterized breakpoints of a large pericentric inversion using comparative genomics.
Conclusions:
- The comprehensive sequencing and analysis of human chromosome 3 provide valuable genomic resources.
- Chromosome 3 harbors important genes related to cancer and immune function.
- The identified pericentric inversion offers insights into primate evolution and genome rearrangements.
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