人間の染色体12の高解像度の地図
K T Montgomery1, E Lee, A Miller
1Department of Molecular Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
Nature
|March 10, 2001
まとめ
全ゲノム指紋と統合された染色体12の新しい配列タグされたサイトマップは,完全な細菌クローンカバーを提供します. この統合マッピングプロトコルは,全ゲノムの物理マップを構築するためのモデルとして役立つ.
科学分野:
- ゲノミクスゲノミクスとは
- 分子生物学は分子生物学である.
- バイオインフォマティックス
背景:
- 大型ゲノムの物理的なマッピングは,遺伝子研究とゲノム組織を理解する上で極めて重要です.
- 過去の染色体12のマッピングは断片化され,包括的な分析が困難でした.
研究 の 目的:
- 配列タグ付けサイト (STS) マッピングを染色体12の全ゲノム指紋と統合する.
- 細菌のクローンを用いて,染色体12の正確でほぼ完全な物理的地図を作成する.
- ゲノム全体の物理マッピングのためのモデルプロトコルの確立.
主な方法:
- シーケンスのタグ付きサイト (STS) のコンテンツマッピングの開発と適用.
- STSマッピングデータを全ゲノム指紋データと統合.
- 物理的なマッピングのために細菌人工染色体 (BAC) クローンを利用する.
主要な成果:
- 染色体12のSTSコンテンツマップと全ゲノム指紋データの統合に成功しました.
- 染色体12のバクテリアクローンの正確な,ほぼ完全なカバーを達成しました.
- 統合マッピングプロトコルの堅実性を実証しました.
結論:
- 統合マッピングプロトコルは,染色体12の非常に正確な物理マップを提供します.
- このアプローチは,全ゲノムの物理的な地図を構築するためのスケーラブルなモデルとして機能します.
- 将来のゲノム研究と比較ゲノミクスを促進します.
関連する概念動画
Karyotyping
Overview
Chromosome Structure
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...
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...
Karyotyping
Overview
Lampbrush Chromosomes
In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops resemble the...
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops resemble the...
Chromosome Structure
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...
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...
Lampbrush Chromosomes
In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops resemble the...
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops resemble the...


