人类染色体6的DNA序列和分析
A J Mungall1, S A Palmer, S K Sims
1The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SA, UK. ajm@sanger.ac.uk
Nature
|October 24, 2003
概括
人类基因组是人类的基因组.
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6约占人类基因组的6%.
- 它是一个超中心染色体,它的完整序列已经确定.
- 这种染色体包含了与人类健康和疾病相关的关键遗传信息.
研究的目的:
- 报告人类染色体6的综合测序和注释.
- 识别基因和伪基因,评估蛋白质编码基因识别的完整性,并发现新的基因元素.
- 研究特定区域的组织和功能,包括转移RNA基因集群和主要基因相容性复合体.
主要方法:
- 染色体6序列的高质量手册注释.
- 多种类比较序列分析以评估基因识别.
- 在主要基因相容性复合体内对基因集群和多态区域的分析.
主要成果:
- 染色体6的完成序列跨越了166,880,988个基对.
- 通过强有力的证据确定了1557个基因和633个伪基因.
- 至少96%的蛋白质编码基因已被确定,有证据表明存在额外的外因子/基因,包括与癌症和自身免疫性疾病相关的基因.
- 在主要基因相容性复合体内,最大的转移RNA基因群和高度多态的HLA-B基因被描述.
结论:
- 对第6染色体的全面分析提供了高质量的参考序列和基因组.
- 该资源有助于研究基因变异及其在癌症和精神分裂症等疾病中的作用.
- 染色体6有关键的免疫系统基因,其中HLA-B异常多态.
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A functional eukaryotic chromosome must contain three elements: a centromere, telomeres, and numerous origins of replication.
The centromere is a DNA sequence that links sister chromatids. This is also where kinetochores, protein complexes to which spindle microtubules attach, are constructed after the chromosome is replicated. The kinetochores allow the spindle microtubules to move the chromosomes within the cell during cell division.
Telomeres consist of non-coding repetitive nucleotide...
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