人类染色体11的DNA序列和分析,包括新型基因鉴定
Todd D Taylor1, Hideki Noguchi, Yasushi Totoki
1RIKEN Genomic Sciences Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan. taylor@gsc.riken.jp
Nature
|March 24, 2006
概括
染色体11富含基因和疾病,拥有超过1500个蛋白质编码基因和众多嗅觉受体. 这项研究提供了全面的数据,以了解与该染色体相关的86种未知疾病的遗传基础.
科学领域:
- 基因组学就是基因组学.
- 人类遗传学 人类遗传学
- 分子生物学分子生物学
背景情况:
- 染色体11富含基因和疾病,含有很大一部分人类基因和相关疾病.
- 嗅觉受体基因在11号染色体上高度聚集,超过40%的人类基因组总数位于这里.
- 许多与11号染色体相关的疾病 (86) 缺乏已识别的分子遗传基础.
研究的目的:
- 为11号染色体提供高质量的基因组数据.
- 为了解11号染色体相关疾病的遗传基础提供基础.
- 为了促进对该染色体上未知分子原因的86种疾病的研究.
主要方法:
- 染色体11的综合基因注释.
- 对基因密度和伪基因含量的分析.
- 嗅觉受体基因集群的映射.
- 测序和数据呈现,覆盖99.8%的圣色区域.
主要成果:
- 染色体11包含1524个编码蛋白质的基因和765个假基因,平均基因密度为每兆基因11.6个基因.
- 超过40%的人类嗅觉受体基因位于11号染色体上,分为28个不同的集群.
- 提供了详细的基因组数据,涵盖了近1345万个基因对的euchromatic序列.
结论:
- 提出的11号染色体的高质量数据是遗传研究的关键资源.
- 这种资源将有助于识别众多孟德尔特征,癌症和易感位置的分子基础.
- 进一步了解11号染色体的遗传环境对于推进人类健康和疾病研究至关重要.
更多相关视频
相关概念视频
Karyotyping
49.3K
Overview
49.3K
X and Y Chromosomes
16.5K
Among mammals, the gender of an organism is determined by the sex chromosomes. Humans have two sex chromosomes, X and Y. Every human diploid cell has 22 pairs of autosomes and one pair of sex chromosomes. A human female has two X chromosomes, while a male has one X chromosome and one Y chromosome.
The germline cells such as egg and sperm cells carry only half the number of chromosomes, i.e., 22 autosomes and one sex chromosome. All eggs have an X chromosome, while sperm cells can carry an X or...
The germline cells such as egg and sperm cells carry only half the number of chromosomes, i.e., 22 autosomes and one sex chromosome. All eggs have an X chromosome, while sperm cells can carry an X or...
16.5K
Exon Recombination
3.1K
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon...
Exon shuffling follows “splice frame rules.” Each exon...
3.1K
Heterochromatin
12.0K
The extent of chromatin compaction can be studied by staining chromatin using specific DNA binding dyes. Under the microscope, the dense-compacted regions that take up more dye are called heterochromatin. Heterochromatin is further classified into two forms – constitutive heterochromatin and facultative heterochromatin.
Constitutive heterochromatin: It is a highly compact region of chromatin that is mostly concentrated in the centromere and telomere. Unlike euchromatin, the amino acid at...
Constitutive heterochromatin: It is a highly compact region of chromatin that is mostly concentrated in the centromere and telomere. Unlike euchromatin, the amino acid at...
12.0K
Genome-wide Association Studies-GWAS
12.6K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
12.6K


